Esempio n. 1
0
class dl_componentBuilder(deluxe.ShadingComponent):
    typeid = 0x1a98068f
    description = "Utility node to create component data"

    lightSetIndex = deluxe.Integer(affect=False)

    rsl = ""
    for channel in deluxe.ComponentData.channels:
        exec '%s = deluxe.%s(shortname="i%s", default=0, affect=False)' % (
            channel.longname, channel.apitype, channel.shortname)
        rsl += '\to_output_%s%s = i_%s * globalIntensity * i_color;\n' % (
            channel.longname, ['', '[i_lightSetIndex]'
                               ][channel.array], channel.longname)
Esempio n. 2
0
class dl_displacement(deluxe.Displacement):
    typeid = 0x00320000
    includes = ["displacement_utils.h"]

    globalScale = deluxe.Float(min=0, max=1, default=1, storage='uniform')
    globalOffset = deluxe.Float(softmin=-1,
                                softmax=1,
                                default=0,
                                storage='uniform')

    useShadingNormals = deluxe.Boolean(
        default=False,
        help="""When a displacement map is used, this shader calls
                                                calculatenormal().  This causes polygonal data to
                                                appear faceted.  This parameter causes the original
                                                shading normal offset to be added to the calculated
                                                normal, generally re-smoothing polygonal data."""
    )

    useNormalMap = deluxe.Boolean(
        default=False,
        storage='uniform',
        help=
        "If on, the normal is set by an input to the normalMap parameter, typically a texture."
    )
    normalMap = deluxe.Color(
        default=0,
        storage='varying',
        help="""If the useNormalMap parameter is on, this sets the normal.
        Typically you would input a colour texture of a worldspace normal map.
        """)

    # per input parameters
    name = deluxe.String(default="input",
                         help="Name of this displacement layer.",
                         norsl=True)
    enable = deluxe.Boolean(default=True,
                            help="Enable/disable this layer of displacement.")
    alpha = deluxe.Float(shortname="alpha",
                         default=1,
                         min=0,
                         max=1,
                         help="Alpha for this layer of displacement.")
    scale = deluxe.Float(default=1,
                         softmin=-1,
                         softmax=1,
                         help="Scale this layer of displacement.")
    offset = deluxe.Float(default=0,
                          softmin=-1,
                          softmax=1,
                          help="Offset this layer of displacement.")
    bumpOrDisplace = deluxe.Float(
        default=1,
        min=0,
        max=1,
        help="Only modifies the normal if 0, displaces at 1, blends between.")
    recalculateNormal = deluxe.Float(
        default=1,
        min=0,
        max=1,
        help="Recalculates the normal if 1, does not if 0, blends between.")
    amount = deluxe.Float(min=0,
                          max=1,
                          help="Plug utility nodes in here to displace.")
    lip = deluxe.Float(shortname="lip", min=0, max=1, help="it's a lip.")
    lipRimSharp = deluxe.Float(shortname="liprs",
                               min=0,
                               max=1,
                               help="it's a lip.")

    inputs = deluxe.Compound([
        name, enable, alpha, scale, offset, bumpOrDisplace, recalculateNormal,
        amount, lip, lipRimSharp
    ],
                             array=True)
    selectedInput = deluxe.Integer(hidden=True)

    # notes:
    # need
    # - some kind of list representation for displacement layers
    # - way to add and remove layers
    # - way to move layers up and down
    # - per-input parameters must be connected to array attributes when a layer is selected


    template = \
    r"""
    

eval("source \"dl_dgLib.mel\";");

    
     
    proc rebuildList(string $inputs)
    {    
        textScrollList -edit -deselectAll inputsList; 
        textScrollList -edit -removeAll  -deselectAll inputsList;        
        int $ix[] = dl_dgPlugArrayGetIndices($inputs);
        int $i;
        for ($i in $ix)
        {
            textScrollList -edit -append `getAttr  ($inputs +"[" + $i + "].name")` inputsList;
        }                                          
    }   
    proc addNewInput(string $inputs)
    {
        int $new_index = dl_dgPlugArrayAddNew($inputs);               
        string $plugName = $inputs + "[" + $new_index + "]";                          
        setAttr -type "string" ($plugName + ".name")  ("input" + ($new_index +1) );
        if ($new_index>0)
        {
            int $i= getSelectedIndex($inputs);
            rebuildList($inputs);
            setSelectedIndex($inputs,$i);  
        }                       
    }
    
    proc int getSelectedScrollIndex(string $inputs)
    {
        
        int $selectedScrollIndexArray[] = `textScrollList   -query -selectIndexedItem inputsList`;        
        return  $selectedScrollIndexArray[0];               
    } 
    proc setSelectedScrollIndex(string $inputs,int $index)
    {       
         textScrollList -edit -selectIndexedItem $index inputsList;
         selectInput ($inputs);           
    }
    
    proc int getSelectedIndex(string $inputs)
    {
        int $indexList[] = dl_dgPlugArrayGetIndices($inputs);        
        int $selectedScrollIndex =  getSelectedScrollIndex($inputs);        
        if (!$selectedScrollIndex)
        {            
            return -1;
        }        
        $selectedScrollIndex--;
        return $indexList[$selectedScrollIndex];    
    }
    proc setSelectedIndex(string $inputs,int $index )
    {
        
        int $scrollIndex = 1;           
        int $indexList[] = dl_dgPlugArrayGetIndices($inputs);
        int $i;
        for ($i in $indexList)
        {
            if ($index == $i)
            {
                break;
            }
            else
            {
                $scrollIndex++;
            }            
        }        
        setSelectedScrollIndex($inputs,$scrollIndex);
                
    }



    proc deleteSelectedInput(string $inputs)
    {    
        if (size(dl_dgPlugArrayGetIndices($inputs)) > 1)
        {
            
            int $i= getSelectedIndex($inputs);
            textScrollList -edit -deselectAll inputsList; 
            if ($i>=0)
            {
                removeMultiInstance -b true ($inputs+"["+$i+"]");
                rebuildList($inputs); 
            } 
        }       
    }
    
    proc moveUp(string $inputs)
    {
        int $i= getSelectedIndex($inputs);
        if ($i>=0)
        {
            int $ix =dl_dgPlugArraySwapWithPrev($inputs,$i);
            rebuildList($inputs);
            setSelectedIndex($inputs,$ix); 
        }   
    }
    proc moveDown(string $inputs)
    {
        int $i= getSelectedIndex($inputs);
        if ($i>=0)
        {
            int $ix = dl_dgPlugArraySwapWithNext($inputs,$i);
            rebuildList($inputs);
            setSelectedIndex($inputs,$ix); 
        }   
    }     
    proc selectInput (string $inputs)
    {     
        int $i= getSelectedIndex($inputs);       
        if ($i<0)
        {
            return;
        }
                      
        AEreplaceString  nameGrp ($inputs+"["+$i+"].name") "";                                                    
        attrFieldSliderGrp -e 
                           -at ($inputs+"["+$i+"].alpha")
                            alphaGrp;
        attrFieldSliderGrp -e 
                           -at ($inputs+"["+$i+"].scale")
                            scaleGrp;
        attrFieldSliderGrp -e
                           -at ($inputs+"["+$i+"].offset")
                            offsetGrp;                       
        attrFieldSliderGrp -e
                           -attribute ($inputs+"["+$i+"].bumpOrDisplace")
                           bumpOrdisplaceGrp;
        attrFieldSliderGrp -e
                           -at ($inputs+"["+$i+"].recalculateNormal")
                            recalculateNormalGrp;
        attrFieldSliderGrp -e
                           -at ($inputs+"["+$i+"].amount")
                            amountGrp;                        
        attrFieldSliderGrp -e
                           -at ($inputs+"["+$i+"].lip") 
                            lipGrp;                        
        attrFieldSliderGrp -e
                           -at ($inputs+"["+$i+"].lipRimSharp")
                            lipRimSharpGrp;                        
    }
    

    

    
    
      
    global proc AEdl_displacement_inputs_New(string $inputs)
    {
      
        
        if (!size(dl_dgPlugArrayGetIndices($inputs)))
        {
            addNewInput($inputs);
        }   
        columnLayout -adj true -cal "center"; 

            rowLayout -nc 2 -adj 1 -cw 2 80;
                textScrollList  -sc ("selectInput \""+ $inputs + "\"")
                                -height 150 
                                inputsList;
                rebuildList($inputs); 
                textScrollList  -e
                            -selectIndexedItem 1
                            inputsList;
             
             columnLayout  -cal "center" ;
                    button  -label " up "
                            -command ("moveUp \""+ $inputs + "\"")    
                            upBtn;
                    button  -label "down"
                            -command ("moveDown \""+ $inputs + "\"")
                            downBtn; 
             setParent..;
                            
            setParent..;
            
            button -label "Add new input" 
                   -command ("addNewInput \""+ $inputs + "\"") 
                    addBtn;
                           
            button -label "Delete selected input" 
                   -command ("deleteSelectedInput \""+ $inputs + "\"")
                    delBtn;               
                           
                                                        
            textFieldGrp   -label "Name"
                           -cc ("rebuildList " + $inputs)
                           nameGrp;
                           
            
            connectControl -index 2 nameGrp ($inputs+"[0].name");
                                       
            attrFieldSliderGrp -label "Alpha"
                               -attribute ($inputs+"[0].alpha")
                               -hideMapButton false
                                alphaGrp;
            attrFieldSliderGrp -label "Scale"
                               -attribute ($inputs+"[0].scale")
                               -hideMapButton false
                                scaleGrp;
            attrFieldSliderGrp -label "Offset"
                               -attribute ($inputs+"[0].offset")
                               -hideMapButton false                                                               
                               offsetGrp;                       
            attrFieldSliderGrp -label "Bump or Displace" 
                               -attribute ($inputs+"[0].bumpOrDisplace")
                               -hideMapButton false                               
                                bumpOrdisplaceGrp;
            attrFieldSliderGrp -label "Recalculate Normal"
                               -attribute ($inputs+"[0].recalculateNormal")
                               -hideMapButton false                              
                               recalculateNormalGrp;
            attrFieldSliderGrp -label "Amount"
                               -attribute ($inputs+"[0].amount")
                               -hideMapButton false                            
                                amountGrp;
            attrFieldSliderGrp -label "Lip"
                               -attribute ($inputs+"[0].lip")
                               -hideMapButton false                            
                                lipGrp;
            attrFieldSliderGrp -label "LipRimSharp"
                               -attribute ($inputs+"[0].lipRimSharp")
                               -hideMapButton false                            
                                lipRimSharpGrp;
       
        setParent..;
        
    }

     
    global proc AEdl_displacement_inputs_Replace(string $inputs)
    {    
        
        
        int  $selectedIndex = getSelectedIndex($inputs);
        int $indexList[] = dl_dgPlugArrayGetIndices($inputs);
             
        if (!size($indexList))
        {
            addNewInput($inputs);
        } 
        rebuildList($inputs); 
        
        textScrollList  -e
                        -sc ("selectInput \""+ $inputs + "\"")
                        inputsList;
        button  -e
                -command ("moveUp \""+ $inputs + "\"")    
                upBtn;
        button  -e
                -command ("moveDown \""+ $inputs + "\"")
                downBtn; 
                        
        button -e 
               -command ("addNewInput \""+ $inputs + "\"") 
               addBtn;
                           
        button -e 
               -command ("deleteSelectedInput \""+ $inputs + "\"")
               delBtn;
        textFieldGrp  -e
                       -cc ("rebuildList " + $inputs)
                        nameGrp;
        
        
        int $i;
        
        
        if ($selectedIndex>=0)
        {
            $i = $selectedIndex;
        }
        else
        {
             
             $i = $indexList[0];
        }
        setSelectedIndex($inputs,$i);                
        connectControl -index 2 nameGrp ($inputs+"["+$i+"].name");
        
                                     
        attrFieldSliderGrp -e
                           -attribute ($inputs+"["+$i+"].alpha")
                            alphaGrp;
        attrFieldSliderGrp -e
                           -attribute ($inputs+"["+$i+"].scale")
                            scaleGrp;
        attrFieldSliderGrp -e
                           -attribute ($inputs+"["+$i+"].offset")
                            offsetGrp;                       
        attrFieldSliderGrp -e 
                           -attribute ($inputs+"["+$i+"].bumpOrDisplace")
                            bumpOrdisplaceGrp;
        attrFieldSliderGrp -e
                           -attribute ($inputs+"["+$i+"].recalculateNormal")
                            recalculateNormalGrp;
        attrFieldSliderGrp -e
                           -attribute ($inputs+"["+$i+"].amount")
                            amountGrp;
        attrFieldSliderGrp -e
                           -attribute ($inputs+"["+$i+"].lip")
                            lipGrp;
        attrFieldSliderGrp -e
                           -attribute ($inputs+"["+$i+"].lipRimSharp")
                            lipRimSharpGrp;
                         
    } 
    
    
    
    
    global proc AEdl_displacementTemplate(string $node)
    {
    
        
        AEswatchDisplay $node;               
        editorTemplate -beginScrollLayout;
            
            editorTemplate -beginLayout "Displacement Attributes" -collapse 0;
                editorTemplate -addControl "globalScale";
                editorTemplate -addControl "globalOffset";
                editorTemplate -addControl "useShadingNormals";
                editorTemplate -addControl "useNormalMap";
                editorTemplate -addControl "normalMap";
            
                editorTemplate -beginLayout "Inputs" -collapse 0;
                                   
                    editorTemplate -callCustom 
                                "AEdl_displacement_inputs_New"
                                "AEdl_displacement_inputs_Replace"
                                "inputs";
                editorTemplate -endLayout;                
                            
            editorTemplate -endLayout;

  
            // include/call base class/node attributes
            AEdependNodeTemplate $node;
    
            editorTemplate -addExtraControls;
        editorTemplate -endScrollLayout;
    }
    """

    rsl = \
    r"""
Esempio n. 3
0
class dl_switch(deluxe.Utility):
    typeid = 0x00370002
    description = "Switcher"

    dl_switch_selectInput_override_0 = deluxe.Float(shortname="sio0",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    dl_switch_selectInput_override_1 = deluxe.Float(shortname="sio1",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    dl_switch_selectInput_override_2 = deluxe.Float(shortname="sio2",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    dl_switch_selectInput_override_3 = deluxe.Float(shortname="sio3",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    dl_switch_selectInput_override_4 = deluxe.Float(shortname="sio4",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    dl_switch_selectInput_override_5 = deluxe.Float(shortname="sio5",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    dl_switch_selectInput_override_6 = deluxe.Float(shortname="sio6",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    dl_switch_selectInput_override_7 = deluxe.Float(shortname="sio7",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    dl_switch_selectInput_override_8 = deluxe.Float(shortname="sio8",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    dl_switch_selectInput_override_9 = deluxe.Float(shortname="sio9",
                                                    default=-1,
                                                    message=True,
                                                    help="")
    colorSet1 = deluxe.Color(shortname="cs1",
                             storage='varying',
                             default=-1,
                             message=True,
                             help="")

    selectInput = deluxe.Enum(
        default='0',
        choices=['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'],
        storage='uniform',
        help="""
                                The default input color and float that are assigned to outColor and outAlpha.
                                This will be overridden by the rib attr specified in ribAttrOverride;
                                the primvar specified in primvarOverride will override them both.
                                """)

    primvarOverride = deluxe.Enum(default='None',
                                  choices=[
                                      'dl_switch_selectInput_override_0',
                                      'dl_switch_selectInput_override_1',
                                      'dl_switch_selectInput_override_2',
                                      'dl_switch_selectInput_override_3',
                                      'dl_switch_selectInput_override_4',
                                      'dl_switch_selectInput_override_5',
                                      'dl_switch_selectInput_override_6',
                                      'dl_switch_selectInput_override_7',
                                      'dl_switch_selectInput_override_8',
                                      'dl_switch_selectInput_override_9',
                                      'colorSet1[0]', 'None'
                                  ],
                                  storage='uniform',
                                  help="""
                                Specify the name of the primvar that will override the selectInput parameter."
                                """)

    colorSet1nChoices = deluxe.Integer(
        shortname="cs1m",
        help=
        "How many inputs to randomly choose from when primvarOverride = 'colorSet1[0]'"
    )

    ribAttrOverride = deluxe.String(help="""
                                The rib attribute that will override the selectInput parameter.  For example,
                                if you have a user rib attr called "switch_override", enter "user:switch_override".
                                """)

    inputFloat0 = deluxe.Float(
        shortname="if0",
        help="This will be assigned to outAlpha if input 0 is selected.")
    inputFloat1 = deluxe.Float(
        shortname="if1",
        help="This will be assigned to outAlpha if input 1 is selected.")
    inputFloat2 = deluxe.Float(
        shortname="if2",
        help="This will be assigned to outAlpha if input 2 is selected.")
    inputFloat3 = deluxe.Float(
        shortname="if3",
        help="This will be assigned to outAlpha if input 3 is selected.")
    inputFloat4 = deluxe.Float(
        shortname="if4",
        help="This will be assigned to outAlpha if input 4 is selected.")
    inputFloat5 = deluxe.Float(
        shortname="if5",
        help="This will be assigned to outAlpha if input 5 is selected.")
    inputFloat6 = deluxe.Float(
        shortname="if6",
        help="This will be assigned to outAlpha if input 6 is selected.")
    inputFloat7 = deluxe.Float(
        shortname="if7",
        help="This will be assigned to outAlpha if input 7 is selected.")
    inputFloat8 = deluxe.Float(
        shortname="if8",
        help="This will be assigned to outAlpha if input 8 is selected.")
    inputFloat9 = deluxe.Float(
        shortname="if9",
        help="This will be assigned to outAlpha if input 9 is selected.")

    inputColor0 = deluxe.Color(
        shortname="ic0",
        help="This will be assigned to outColor if input 0 is selected.")
    inputColor1 = deluxe.Color(
        shortname="ic1",
        help="This will be assigned to outColor if input 1 is selected.")
    inputColor2 = deluxe.Color(
        shortname="ic2",
        help="This will be assigned to outColor if input 2 is selected.")
    inputColor3 = deluxe.Color(
        shortname="ic3",
        help="This will be assigned to outColor if input 3 is selected.")
    inputColor4 = deluxe.Color(
        shortname="ic4",
        help="This will be assigned to outColor if input 4 is selected.")
    inputColor5 = deluxe.Color(
        shortname="ic5",
        help="This will be assigned to outColor if input 5 is selected.")
    inputColor6 = deluxe.Color(
        shortname="ic6",
        help="This will be assigned to outColor if input 6 is selected.")
    inputColor7 = deluxe.Color(
        shortname="ic7",
        help="This will be assigned to outColor if input 7 is selected.")
    inputColor8 = deluxe.Color(
        shortname="ic8",
        help="This will be assigned to outColor if input 8 is selected.")
    inputColor9 = deluxe.Color(
        shortname="ic9",
        help="This will be assigned to outColor if input 9 is selected.")

    outColor = deluxe.Color(shortname="oc", output=True)
    outAlpha = deluxe.Float(shortname="oa", output=True)

    rslpost = ""

    rsl = """    
Esempio n. 4
0
class dl_ocean(deluxe.ShadingNode):
    typeid = 0x3acd90d0
    description = "Houdini's ocean "

    #
    globalScale = deluxe.Float(default=1,
                               min=0.000001,
                               help='THE global scale')
    gridResolution = deluxe.Integer(
        default=8,
        help=
        'This is the resolution of the grid that the ocean will be simulated on. You can think of it in the same way as you would a texture image that you would tile the ocean surface with. The resolution of the image would be 2 to the power of res so e.g. res=10 would make a 1024x1024 image. Be warned, going to res=11 means you are going to use quite a bit of memory since the code uses more arrays of this size to store intermediate computations.'
    )
    oceanSize = deluxe.Float(
        default=100,
        help=
        'The grid mentiond above is computed for and applied to the input geometry in tiles of this size.'
    )
    windSpeed = deluxe.Float(default=30, help='Affects the shape of the waves')
    waveHeigth = deluxe.Float(
        default=3,
        help=
        'This is used to set the so called "A" fiddle factor in the Tessendorf paper. The waves are scaled so that they will be roughly less than this height (strictly so for the t=0 timestep).'
    )
    shortestWave = deluxe.Float(
        default=0.02, help='Waves below this lenght will be filterd out.')
    windDirection = deluxe.Float(
        default=0, help='Affects the direction the waves travel in.')
    dampReflections = deluxe.Float(
        default=0.5,
        help=
        'In a "fully developed" ocean you will have waves travelling in both the forward and backwards directions. This parameter damps out the negative direcion waves'
    )
    windAlign = deluxe.Float(
        default=2,
        help=
        'Controls how closely the waves travel in the direction of the wind.')
    oceanDepth = deluxe.Float(
        default=200,
        help=
        'Affects the spectrum of waves generated. Visually in doesnt seem to have that great an influence'
    )
    chopAmount = deluxe.Float(
        default=1,
        help=
        'The amount of chop displacenemnt that is applied to the input points.'
    )
    doNormal = deluxe.Boolean(default=False)
    doEigen = deluxe.Boolean(default=False)
    time = deluxe.Float(
        default=0,
        help=
        'The time that the surface will be evaluated at. You will usually just plug the expression timr in here.'
    )
    seed = deluxe.Integer(shortname='sd',
                          default=0,
                          help='Seeds the random number generator.')

    Pref = deluxe.Point(message=True,
                        messagetype='Pref_param',
                        storage='varying')

    outColor = deluxe.Color(default=0, output=True)
    outAlpha = deluxe.Float(default=0, output=True)
    outNormal = deluxe.Color(default=0, output=True)
    outJMinus = deluxe.Float(default=0, output=True)
    outJPlus = deluxe.Float(default=0, output=True)
    outEMinus = deluxe.Color(default=0, output=True)
    outEPlus = deluxe.Color(default=0, output=True)

    rsl = """
Esempio n. 5
0
class dl_indirectLightShape(deluxe.EnvLight):
    typeid = 0x00310003
    description = "Light that does ambient occlusion and indirect diffuse lighting."
    includes = [
        "remap_utils.h", "component_utils.h", "physicalsky_utils.h",
        "env_utils.h"
    ]

    #    deluxe.EnvLight.envMap.default = 'default_indirect.tdl'

    #
    envConvolveMode = deluxe.Enum(
        default='Use envBlur parm',
        label='Convolve Mode',
        choices=['Use envBlur parm', 'Auto (ignore envBlur parm)'],
        help="""Use envBlur parm = use environment() function with envBlur parm,
                                          Auto (ignore envBlur parm) = use indirectdiffuse() function which
                                          automitically blurs map.""")
    envBlur = deluxe.Float(
        min=0,
        softmax=1,
        default=0,
        storage='uniform',
        label='Blur',
        help=
        """Blur for envMap, only used when envConvolveMode = 'Use envBlur parm'."""
    )

    envIntensity = deluxe.Float(default=1, label='Intensity')
    envColor = deluxe.Color(default=1, label='Color')

    environmentMap = deluxe.Group(
        [
            deluxe.EnvLight.envMethod, envIntensity, envColor,
            deluxe.EnvLight.envMap, deluxe.EnvLight.envSpace, envConvolveMode,
            envBlur, deluxe.EnvLight.physicalSky,
            deluxe.EnvLight.envColorCorrection
        ],
        shortname='emg',
        collapse=False,
    )

    occMethod = deluxe.Enum(
        default='Point Cloud',
        choices=['None', 'Ray Tracing', 'Point Cloud'],
        label='Occlusion Method',
        help=""""Ray Tracing" uses the standard occlusion() call. 
                                     "Point Cloud" uses previously baked point clouds.
                                     """)

    ambientOcclusion = deluxe.Group(
        [
            occMethod, deluxe.EnvLight.occPointCloud,
            deluxe.EnvLight.occRayTracing, deluxe.EnvLight.occAdvanced,
            deluxe.EnvLight.occRemapping
        ],
        collapse=False,
    )

    indirectMethod = deluxe.Enum(
        default='None',
        choices=['None', 'Ray Tracing', 'Point Cloud'],
        label='Color Bleeding Method',
        shortname='indm',
        help=""""Ray Tracing" uses the standard indirectdiffuse() call. 
                                     "Point Cloud" uses previously baked point clouds.
                                     """)

    indirectIntensity = deluxe.Float(default=1, label='Intensity')

    indirectMaxDistance = deluxe.Float(
        shortname='idmd',
        softmin=0,
        default=1e38,
        storage='uniform',
        label='Max Distance',
        help=
        "(Ray Tracing, Point Cloud) Only consider intersections closer than this distance."
    )

    indirectSamples = deluxe.Integer(
        shortname='ids',
        min=0,
        max=256,
        default=64,
        label='Samples',
        help="""(Ray Tracing) The number of rays to trace.""")
    indirectAdaptiveSampling = deluxe.Boolean(
        shortname='idas',
        default=False,
        label='Adaptive Sampling',
        help="(Ray Tracing) Enables or disables adaptive sampling.")
    indirectRayBias = deluxe.Float(
        default=0.1,
        min=0,
        softmax=2,
        label='Ray Bias',
        help=
        """(Ray Tracing, Point Cloud) Specifies a bias for ray's starting point to avoid potentially erroneous 
                                            intersections with the emitting surface."""
    )
    indirectFalloffMode = deluxe.Enum(
        shortname="psifm",
        default='Linear',
        choices=['Exponential', 'Linear'],
        label='Falloff Mode',
        help=
        """(Ray Tracing, Point Cloud) Specifies the falloff curve to use.""")
    indirectFalloff = deluxe.Float(
        default=1,
        min=0,
        softmax=5,
        label='Falloff',
        help=
        """(Ray Tracing, Point Cloud) This shapes the falloff curve. In the exponential case the curve is exp( -falloff * hitdist ) 
                                            and in the linear case it is pow(1-hitdist/maxdist, falloff)."""
    )
    indirectPtcFile = deluxe.File(
        default='',
        label='Point Cloud File',
        help=
        """(Point Cloud) The point cloud file in which baked points with radiosity are stored."""
    )
    occPtcFileIsDirectory = deluxe.Boolean(default=False)
    indirectMaxSolidAngle = deluxe.Float(
        softmin=0.01,
        softmax=0.5,
        default=0.1,
        storage='uniform',
        label='Max Solid Angle',
        help="""(Point Cloud) This is a quality vs speed control knob.""")
    indirectClamp = deluxe.Boolean(
        default=True,
        label='Clamp',
        help=
        """(Point Cloud) Setting this parameter to 1 will force 3DELIGHT to account for
                                            occlusion in dense environments. The results obtained with this
                                            parameter on should look similar to what a Ray Tracing rendering
                                            would give. Enabling this parameter will slow down the Point Cloud
                                            algorithm by a factor of 2.""")
    indirectSampleBase = deluxe.Float(
        default=1,
        label='Sample Base',
        help=
        """(Point Cloud) Scales the amount of jittering of the start position of rays. The default
                                               is to jitter over the area of one micropolygon."""
    )
    indirectHitSides = deluxe.Enum(
        default='Both',
        choices=['Front', 'Back', 'Both'],
        label='Hit Sides',
        help=
        """(Point Cloud) Specifies which side(s) of the point cloud's samples will produce occlusion."""
    )

    indirectPointCloud = deluxe.Group([
        indirectPtcFile, occPtcFileIsDirectory, indirectMaxSolidAngle,
        indirectClamp, indirectSampleBase, indirectHitSides
    ],
                                      label="Point Cloud")

    indirectRayTracing = deluxe.Group(
        [indirectSamples, indirectAdaptiveSampling, indirectRayBias],
        label="Ray Tracing",
    )

    indirectAdvanced = deluxe.Group(
        [indirectMaxDistance, indirectFalloffMode, indirectFalloff],
        label='Advanced')

    colorBleeding = deluxe.Group(
        [
            indirectMethod, indirectIntensity, indirectPointCloud,
            indirectRayTracing, indirectAdvanced
        ],
        collapse=False,
    )

    __computeOcclusion = deluxe.Float(default=1,
                                      message=True,
                                      messagetype='lightsource')
    __occluded = deluxe.Color(default=0,
                              output=True,
                              message=True,
                              storage='varying',
                              messagetype='lightsource')
    __occlusionColor = deluxe.Color(default=0,
                                    output=True,
                                    message=True,
                                    messagetype='lightsource')
    __indirect_color = deluxe.Color(default=0,
                                    output=True,
                                    message=True,
                                    storage='varying',
                                    messagetype='lightsource')
    __bentnormal = deluxe.Color(default=0,
                                output=True,
                                message=True,
                                storage='varying',
                                messagetype='lightsource')

    # category
    __category = deluxe.String(default='indirect',
                               message=True,
                               messagetype='lightsource')
    _3delight_light_category = deluxe.String(default='indirect',
                                             notemplate=True,
                                             norsl=True)


    rsl = \
    """
Esempio n. 6
0
class dl_textureMap(deluxe.Texture2D):
    typeid = 0x00370001
    description = "Wrapper around 3Delight \"texture\" function"
    
    textureName = deluxe.Image(storage='uniform',
                                help="""Texture file in tdl format. Use 'N' or 'NNNN' for the
                                        frame number if using indexed sprites.""")
    indexedSprites = deluxe.Boolean(help="Treat the filename as a sequence indexed with spritePP.")
    blur = deluxe.Float(default=0, min=0, softmax=0.2, storage='uniform',
                         help="""Specifies an additional length to be added to texture
                                 lookup region in both s and t, expressed in units of texture
                                 coordinates (range = [0..1]). A value of 1.0 would request that
                                 the entire texture be blurred in the result.""")    
    filterType = deluxe.Enum(default='Gaussian',
                              choices=['Box', 'Triangle', 'Gaussian'],
                              storage='uniform',
                              help="Specifies the reconstruction filter to use when accessing the texture map.");   
    samples = deluxe.Integer(default=4, storage='uniform',
                              help="(Box filter only) Number of samples.")
    gamma = deluxe.Float3(default=1, min=0.0001, max=3,
                           help="Gamma correction to apply to the texture.")
   
    gammaCorrection = deluxe.Group([gamma])
    
    spriteNumPP = deluxe.Integer(default=0, storage='uniform', message=True)

    coordsys = deluxe.CoordinateSystem(help="""
        Coordinate system (or camera) in which to look up texture.
        Use a delightCoordinateSystem shape name (eg. delightCoordinateSystemShape1)
        or mayaCamera:cameraName (eg. "mayaCamera:persp", NOT "mayaCamera:perspShape").
        """)

    alphaInsideUVMult = deluxe.Float(shortname="aism", default=1, help="""
        Multiply the alpha by this value where the surface is inside the UV coordinates
        (ie. u and v are > 0 and < 1).
        """)

    alphaInsideUVOffset = deluxe.Float(shortname="aiso", default=0, help="""
        Add this value to the alpha where the surface is inside the UV coordinates
        (ie. u and v are > 0 and < 1).
        """)

    specifyAlphaOutsideUV = deluxe.Boolean(default=False, help="""
            If on, alpha will be set to alphaOutsideUV value where the surface is
            outside the UV coordinates (ie. u or v is > 1 or < 0).""")


    alphaOutsideUV = deluxe.Float(shortname="aos", default=0,
        help="""If specifyAlphaOutsideUV is on, this is the alpha where the
            surface is outside the UV coordinates (ie. u or v is > 1 or < 0).""")

    alphaCorrection = deluxe.Group([alphaInsideUVMult, alphaInsideUVOffset, specifyAlphaOutsideUV, alphaOutsideUV])

    warpMode = deluxe.Enum(shortname='wm', default='Off', choices=['Off', 'Noise','Input'])
    warpNoiseAmount = deluxe.Float2(shortname='wna', default=1)
    warpNoiseFreq = deluxe.Float2(shortname='wnf', default=1)
    warpNoiseOffset = deluxe.Float2(shortname='wno', default=0)
    warpInput = deluxe.Float2(shortname='wi', default=0)
    warp = deluxe.Group([ warpMode, warpNoiseAmount, warpNoiseFreq, warpNoiseOffset, warpInput]) 

    rsl = """    
Esempio n. 7
0
class dl_projectionLightShape(deluxe.Light):
    typeid = 0x00310005
    includes = ["shadow_utils.h", "utils.h"]

    color = deluxe.Color(shortname='clr', prepare=True, storage='varying', help="""
Colour to project.  Plug this into a maya File node's outColor to project a texture.
""")

    transparency = deluxe.Color(default=0, shortname='trn', storage='varying', help="""
Transparency (1-alpha) of projected colour.  Plug this into a maya File
node's outTransparency to use the texture's (inverted) alpha channel.
""")

    compositeMode = deluxe.Enum(shortname='cpmd', default='Over', choices=['Over', 'Add'], help="""
Compositing mode over previous projections.
projectionLights are evaluated in alphabetical order.
""")
    #repeatMode = deluxe.Enum(default='Blank', choices=['Blank', 'Repeat', 'Hold'], help="")

    projLightSubset = deluxe.String(default="", help="""
Only dl_projectionCollector nodes with matching projLightSubset
values will receive projections from this light.
""")

    # mapped shadows
    shadowBlur = deluxe.Float(label='Blur',
                               shortname='bl', default=0.01, min=0, softmax=0.2, storage='uniform',
                               help="""Amount to blur the shadow. A value of 1.0 would
                                       request that the entire texture be blurred in the result.""")
    shadowFilterType = deluxe.Enum(label='Filter Type',
                                    default='Gaussian',
                                    choices=['Box','Triangle','Gaussian']);
    shadowBias = deluxe.Float(label='Bias',
                               shortname='bi', default=0.225, min=0, softmax=5, storage='uniform',
                               help="Used to prevent self-shadowing. If set to 0, the global bias is used.")
    shadowSamples = deluxe.Integer(label='Samples',
                                    default=16, min=0, softmax=16)
    
    useSoftShadowDecay = deluxe.Boolean(default=False,
                                         help="Turns on soft shadows that decay with distance.")
    shadowMinimumRadius = deluxe.Float(label='Minimum Radius',
                                        shortname='mnr', default=0.001, min=0, softmax=0.2, storage='uniform')
    shadowMaximumRadius = deluxe.Float(label='Maximum Radius',
                                        shortname='mxr', default=0.1, min=0, softmax=0.2, storage='uniform')
    selfShadowReduce = deluxe.Float(default=2, min=0, softmax=5, storage='uniform')
    shadowDecay = deluxe.Float(label='Decay',
                                default=0, min=0, softmax=5, storage='uniform')
    shadowDecayCutOn = deluxe.Float(label='Decay Cut-On',
                                     shortname='sdcon', default=10, min=0, max=1000, storage='uniform')
    shadowDecayCutOff = deluxe.Float(label='Decay Cut-Off',
                                      shortname='sdcoff', default=10, min=0, max=1000, storage='uniform')
    
    softShadowDecay = deluxe.Group([useSoftShadowDecay,
                                     shadowMinimumRadius, shadowMaximumRadius,
                                     selfShadowReduce, shadowDecay,
                                     shadowDecayCutOn, shadowDecayCutOff])

    mappedShadows = deluxe.Group([shadowBlur, shadowFilterType, 
                                   shadowBias, shadowSamples,
                                   softShadowDecay])

    # output messages
    __compositeMode = deluxe.Float(default=0, storage='varying',  output=True, message=True, messagetype='lightsource')
    __alpha = deluxe.Float(default=1, storage='varying', output=True, message=True, messagetype='lightsource')
    __projLightSubset = deluxe.String(default="", output=True, message=True, messagetype='lightsource')


    # category
    __category = deluxe.String(default='texture', message=True, messagetype='lightsource')
    _3delight_light_category = deluxe.String(shortname='cat', default='texture', notemplate=True, norsl=True)

    rslprepare = \
    """
    extern float ss;
    extern float tt;
    extern point Ps;
    point Pl = transform("shader", Ps);
    ss = (Pl[0] + 1)/2;
    tt = (Pl[1] + 1)/2;
    """

    rsl = \
    """

        extern color Cl;
        extern vector L;
        extern point Ps;
        extern normal Ns;
        extern vector I;
        
        extern float __compositeMode;
        extern float __alpha;
        extern string __projLightSubset;

        point Pl = transform("shader", Ps);
        float ss = Pl[0];
        float tt = Pl[1];

        __compositeMode = i_compositeMode;
        float unshadowedAlpha = luminance(1-i_transparency);
        __projLightSubset = i_projLightSubset;

        illuminate(Ps)
        {
            extern uniform string shadowmapname;
            color unoccluded = color getShadowMapContribution(Ps,
                                                        shadowmapname,
                                                        i_shadowBlur,
                                                        i_shadowFilterType,
                                                        i_shadowBias,
                                                        i_shadowSamples,
                                                        i_useSoftShadowDecay,
                                                        i_shadowMinimumRadius,
                                                        i_shadowMaximumRadius,
                                                        i_selfShadowReduce,
                                                        i_shadowDecay,
                                                        i_shadowDecayCutOn,
                                                        i_shadowDecayCutOff);
            __alpha = unshadowedAlpha * luminance(unoccluded);
            Cl = i_color * unoccluded;
        }
    """

    def draw(self, view, path, style, status):
        thisNode = self.thisMObject()
     
        fnThisNode = OpenMaya.MFnDependencyNode(thisNode)
        
        view.beginGL()
        
        glFT.glPushAttrib(OpenMayaRender.MGL_ALL_ATTRIB_BITS)
        # Color of main light cone ui.
        def dormantColor(clrNum):
            if status == OpenMayaUI.M3dView.kDormant:
                view.setDrawColor(clrNum, OpenMayaUI.M3dView.kActiveColors)
            
        dormantColor(11)
        # Colours: 
        # 0 = black, 1 = mid grey, 2 = light grey, 3 = burgundy, 4 = dark blue,
        # 5 = mid blue, 6 = dark green, 7 = dark purple, 8 = pink, 9 = burgundy again,
        # 11 = burgundy again, 12 = red, 13 = green, 14 = blue, 15 = white, 16 = yellow

        
        glFT.glPushMatrix()
        #glFT.glScalef(iconSize, iconSize, iconSize)
        glFT.glBegin(OpenMayaRender.MGL_LINE_LOOP)
        glFT.glVertex3f(-1, 1, 0)
        glFT.glVertex3f(1, 1, 0)
        glFT.glVertex3f(1, - 1, 0)
        glFT.glVertex3f(-1, - 1, 0)
        glFT.glEnd()
        glFT.glBegin(OpenMayaRender.MGL_LINES)
        glFT.glVertex3f(-1, 1, 0)
        glFT.glVertex3f(1, - 1, 0)
        glFT.glVertex3f(1, 1, 0)
        glFT.glVertex3f(-1, - 1, 0)
        glFT.glVertex3f(0, 0, 0)
        glFT.glVertex3f(0, 0, - 0.7)
        glFT.glVertex3f(0, 0, - 0.7)
        glFT.glVertex3f(0, 0.04, - 0.4)
        glFT.glVertex3f(0, 0, 0. - 0.7)
        glFT.glVertex3f(0, - 0.04, - 0.4)
        glFT.glVertex3f(0, 0.04, - 0.4)
        glFT.glVertex3f(0, - 0.04, - 0.4)
        glFT.glVertex3f(0, 0, - 0.7)
        glFT.glVertex3f(0.04, 0, - 0.4)
        glFT.glVertex3f(0, 0, 0. - 0.7)
        glFT.glVertex3f(-0.04, 0, - 0.4)
        glFT.glVertex3f(0.04, 0, - 0.4)
        glFT.glVertex3f(-0.04, 0, - 0.4)
        glFT.glEnd()
        glFT.glPopMatrix()
        
        glFT.glPopAttrib()
        
        view.endGL()
Esempio n. 8
0
class dl_layer(deluxe.ShadingCodeComponent):
    typeid = 0x00310010
    classification = "rendernode/3delight/material:shader/surface"
    description = "Generic layered shader."

    #
    includes = ["blend_utils.h", "displacement_utils.h"]

    # Used for easy code generation replacement
    _codetokens = {}

    # Utility functions parameters (in dl_layer.h)
    blendLightsetsFgInputs = [deluxe.Color(longname='fg_opacity')]
    blendLightsetsBgInputs = [deluxe.Color(longname='bg_opacity')]
    blendLightsetsOutputs = []

    # Input and output component compound attributes children
    layerComponentChildren = []

    # Shading component channels, build compound attributes children and utility functions parameters
    channels = deluxe.ComponentData.channels
    for channel in channels:
        inmsg = 'component_%s' % channel.longname
        if channel.array:
            exec 'blendLightsetsFgInputs.append(deluxe.%s(longname="fg_%s", utility=True))' % (
                channel.apitype, channel.longname)
            exec 'blendLightsetsBgInputs.append(deluxe.%s(longname="bg_%s", utility=True))' % (
                channel.apitype, channel.longname)
            exec 'blendLightsetsOutputs.append(deluxe.%s(longname="%s", output=True, utility=True))' % (
                channel.apitype, channel.longname)
        exec '%s = deluxe.%s(shortname="l%s", norsl=True)' % (
            inmsg, channel.type, channel.shortname)
        exec 'layerComponentChildren.append(%s)' % inmsg

    # UTILITY FUNCTIONS
    utilfuncs = []
    for type in ['Float', 'Color']:

        blendBase = 'blend%ss' % type
        blendFunc = '%sFunc' % blendBase
        blendCode = '\tcolor resultColor, resultOpacity;\n'
        if type == 'Float':
            blendCode += '\tfloat premult = mix(1, luminance(i_fga), i_premult);\n'
            blendCode += '\tblend(i_mode, color(i_fg) * premult, i_fga, color(i_bg), i_bga, resultColor, resultOpacity);\n'
            blendCode += '\treturn comp(resultColor, 0);'
        else:
            blendCode += '\tcolor premult = mix(color 1, i_fga, i_premult);\n'
            blendCode += '\tblend(i_mode, i_fg * premult, i_fga, i_bg, i_bga, resultColor, resultOpacity);\n'
            blendCode += '\treturn resultColor;'

        exec "%s = deluxe.Function(name='%s', type='%s', inputs=[deluxe.Float(longname='mode', storage='uniform'), deluxe.Float(longname='premult'), deluxe.%s(longname='fg'), deluxe.Color(longname='fga'), deluxe.%s(longname='bg'), deluxe.Color(longname='bga')])" % (
            blendFunc, blendBase, type.lower(), type, type)
        exec "%s.rsl = blendCode" % blendFunc
        exec "utilfuncs.append(%s)" % blendFunc

        accumBase = 'accumulate%ss' % type
        accumFunc = '%sFunc' % accumBase
        accumCode = """\
    uniform float size = arraylength(i_inputs);
    uniform float i;
    %s total = 0;
    for(i = 0; i < size; i+= 1)
    {
        total += i_inputs[i];
    }
    return total;
    """ % type.lower()

        exec "%s = deluxe.Function(name='%s', type='%s', inputs=[deluxe.%s(longname='inputs', array=True)])" % (
            accumFunc, accumBase, type.lower(), type)
        exec "%s.rsl = accumCode" % accumFunc
        exec "utilfuncs.append(%s)" % accumFunc

        copyBase = 'copy%ss' % type
        copyFunc = '%sFunc' % copyBase
        copyCode = """\
    uniform float isize = arraylength(i_inputs);
    uniform float osize = arraylength(o_outputs);
    uniform float i;
    for(i = 0; i < isize &&  i < osize ; i += 1)
    {
        o_outputs[i] = i_inputs[i];
    }
    """
        exec "%s = deluxe.Function(name='%s', inputs=[deluxe.%s(longname='inputs', array=True)], outputs=[deluxe.%s(longname='outputs', array=True, output=True)])" % (
            copyFunc, copyBase, type, type)
        exec "%s.rsl = copyCode" % copyFunc
        exec "utilfuncs.append(%s)" % copyFunc

    #
    blendLightsetsInputs = [
        deluxe.Float(longname='mode', storage='uniform'),
        deluxe.Float(longname='premult')
    ]
    blendLightsetsInputs.extend(blendLightsetsFgInputs)
    blendLightsetsInputs.extend(blendLightsetsBgInputs)
    blendLightsetsFunc = deluxe.Function(name='blendLightsets',
                                         inputs=blendLightsetsInputs,
                                         outputs=blendLightsetsOutputs)
    for channel in filter(lambda msg: msg.array, channels):
        blendLightsetsFunc.rsl += '\to_%s = blend%ss(i_mode, i_premult, i_fg_%s, i_fg_opacity, i_bg_%s, i_bg_opacity);\n' % (
            channel.longname, channel.apitype, channel.longname,
            channel.longname)

    utilfuncs.append(blendLightsetsFunc)

    puzzleAuxInputs = []
    puzzleDefaults = [[1, 0, 0], [0, 1, 0], [0, 0, 1]]
    for i in range(0, len(puzzleDefaults)):
        id = i + 1
        baseName = 'puzzle%d' % id
        exec '%s = deluxe.Color(shortname="pz%d", default=%s)' % (
            baseName, id, str(puzzleDefaults[i]))
        exec 'puzzleAuxInputs.append(%s)' % baseName

    calculateAuxiliariesInputs = [
        deluxe.Color(longname='opacity'),
        deluxe.Float(longname='premult'),
        deluxe.Color(longname='layerOpacities', array=True),
        deluxe.String(longname='layerNames', array=True)
    ]
    calculateAuxiliariesInputs.extend(puzzleAuxInputs)
    calculateAuxiliariesFunc = deluxe.Function(
        name='calculateAuxiliaries', inputs=calculateAuxiliariesInputs)
    calculateAuxiliariesFunc.rsl = """
    extern point P;
    extern normal N;
    extern vector I;
    extern float u, v;
    extern float s, t;
    
    vector In = normalize(I);
    normal Nn = normalize(N);
    
     color premult = mix(color 1, i_opacity, i_premult);
"""

    auxAOVs = filter(lambda channel: channel.auxiliary,
                     deluxe.components.channels)

    for aov in auxAOVs:
        calculateAuxiliariesFunc.rsl += '\n\textern %s %s;\n' % (aov.rsltype,
                                                                 aov.longname)
        calculateAuxiliariesFunc.rsl += '\t%s = %s;\n' % (aov.longname,
                                                          aov.code)

    utilfuncs.append(calculateAuxiliariesFunc)

    # ATTRIBUTES

    #
    displayOpacity = deluxe.Color(shortname='do', norsl=True)
    displayColor = deluxe.Color(shortname='dc', norsl=True)

    # A global opacity multiplier
    globalOpacity = deluxe.Color(shortname='go', default=1.0, affect=False)

    # Global displacement scale
    displacementGlobalScale = deluxe.Float(shortname='dsc',
                                           default=1.0,
                                           affect=False)

    # Global displacement offset
    displacementGlobalOffset = deluxe.Float(shortname='dof',
                                            default=0.0,
                                            affect=False)

    #
    displacementCompensateScale = deluxe.Boolean(shortname='dcs',
                                                 default=False,
                                                 affect=False)
    #
    #    displacementUseNormalMap = deluxe.Boolean(default=False, storage='uniform',
    #        help="If on, the normal is set by an input to the normalMap parameter, typically a texture.")

    #
    #    displacementNormalMap = deluxe.Color(default=0, storage='varying',
    #        help="""If the useNormalMap parameter is on, this sets the normal.
    #        Typically you would input a colour texture of a worldspace normal map.
    #        """)

    # Arbitrary max lightset count
    lightSetsCount = deluxe.Integer(shortname='lsc',
                                    norsl=True,
                                    default=1,
                                    min=1,
                                    max=16,
                                    affect=False)

    # Layers blend order
    order = deluxe.IntArray(shortname='ord', affect=False, norsl=True)
    actualOrder = deluxe.IntArray(shortname='aord',
                                  output=True,
                                  internal=True,
                                  norsl=True)

    # Layer compound attribute children
    # Layer name, mostly used as a label but could be used to name per layer AOVs if we decide to output them
    layer_name = deluxe.String(shortname='lnm', utility=True, affect=False)

    #
    blendModes = [
        'Over', 'Under', 'In', 'Out', 'Atop', 'Xor', 'Cover', 'Add',
        'Subtract', 'Multiply', 'Difference', 'Lighten', 'Darken', 'Saturate',
        'Desaturate', 'Illuminate', 'None'
    ]
    # From blend function in blend_utils.h, Over=0, ...Illuminate=15
    layer_mode = deluxe.Enum(shortname='lmde',
                             choices=blendModes,
                             default=blendModes[0],
                             utility=True,
                             affect=False)

    # Blend opacity
    layer_opacity = deluxe.Color(shortname='lo',
                                 default=1.0,
                                 utility=True,
                                 affect=False)

    #
    layer_premult = deluxe.Float(shortname='lpm',
                                 default=1.0,
                                 utility=True,
                                 affect=False,
                                 hidden=True)

    #
    layer_blendOpacity = deluxe.Boolean(shortname='lbo',
                                        default=True,
                                        utility=True,
                                        affect=False)

    # When turned off, no code is generated for this layer, don't use this to dynamically turn layer on and off, use layer_opacity
    layer_enable = deluxe.Boolean(shortname='len',
                                  default=True,
                                  norsl=True,
                                  affect=False)

    # Layer input components
    layer_components = deluxe.ComponentData(shortname='lcmp',
                                            children=layerComponentChildren,
                                            array=True,
                                            norsl=True,
                                            affect=False)

    #
    layer_displacement_name = deluxe.String(shortname='ldn',
                                            norsl=True,
                                            affect=False)
    layer_displacement_enable = deluxe.Boolean(shortname='lde',
                                               default=True,
                                               norsl=True,
                                               affect=False)
    layer_displacement_amount = deluxe.Float(shortname='lda',
                                             default=0.0,
                                             norsl=True,
                                             utility=True,
                                             affect=False)
    layer_displacement_scale = deluxe.Float(shortname='ldsc',
                                            default=1.0,
                                            softmin=-1,
                                            softmax=1,
                                            norsl=True,
                                            utility=True,
                                            affect=False)
    layer_displacement_alpha = deluxe.Float(shortname='ldal',
                                            default=1.0,
                                            min=0,
                                            max=1,
                                            norsl=True,
                                            utility=True,
                                            affect=False)
    layer_displacement_offset = deluxe.Float(shortname='ldo',
                                             default=0.0,
                                             softmin=-1,
                                             softmax=1,
                                             norsl=True,
                                             utility=True,
                                             affect=False)
    layer_displacement_type = deluxe.Enum(shortname='ldty',
                                          choices=['Bump', 'Displace'],
                                          default='Displace',
                                          utility=True,
                                          affect=False)
    layer_displacement_recalcNorm = deluxe.Boolean(shortname='ldrn',
                                                   default=True,
                                                   norsl=True,
                                                   utility=True,
                                                   affect=False)
    layer_displacement_useShadNorm = deluxe.Boolean(shortname='ldun',
                                                    default=False,
                                                    norsl=True,
                                                    utility=True,
                                                    affect=False)
    layer_displacement_useNormMap = deluxe.Boolean(shortname='ldum',
                                                   default=False,
                                                   norsl=True,
                                                   utility=True,
                                                   affect=False)
    layer_displacement_normMap = deluxe.Color(shortname='ldnm',
                                              default=False,
                                              norsl=True,
                                              utility=True,
                                              affect=False)
    layer_displacement_lip = deluxe.Float(shortname='ldl',
                                          min=0,
                                          max=1,
                                          default=0.0,
                                          norsl=True,
                                          utility=True,
                                          affect=False)
    layer_displacement_lipRim = deluxe.Float(shortname='ldls',
                                             min=0,
                                             max=1,
                                             norsl=True,
                                             utility=True,
                                             affect=False)

    layer_displacement_children = [
        layer_displacement_name,
        layer_displacement_enable,
        layer_displacement_amount,
        layer_displacement_scale,
        layer_displacement_alpha,
        layer_displacement_offset,
        layer_displacement_type,
        layer_displacement_recalcNorm,
        layer_displacement_useShadNorm,
        layer_displacement_useNormMap,
        layer_displacement_normMap,
        layer_displacement_lip,
        layer_displacement_lipRim,
    ]
    #
    layer_displacements = deluxe.Compound(layer_displacement_children,
                                          shortname='lds',
                                          array=True,
                                          utility=True,
                                          affect=False)
    layer_displacement_mode = deluxe.Enum(shortname='ldmo',
                                          choices=['Add', 'Over'],
                                          default='Add',
                                          utility=True,
                                          affect=False)
    layer_displacement_layerScale = deluxe.Float(shortname='ldlc',
                                                 default=1.0,
                                                 utility=True,
                                                 affect=False)
    layer_displacement_layerOffset = deluxe.Float(shortname='ldlo',
                                                  default=0.0,
                                                  utility=True,
                                                  affect=False)

    layer_displacements_order = deluxe.IntArray(shortname='ldor',
                                                affect=False,
                                                norsl=True)
    layer_displacements_actualOrder = deluxe.IntArray(shortname='ldao',
                                                      output=True,
                                                      internal=True,
                                                      affect=False,
                                                      norsl=True)

    # Layers
    layers = deluxe.Compound([
        layer_name, layer_enable, layer_mode, layer_opacity, layer_premult,
        layer_blendOpacity, layer_components, layer_displacement_mode,
        layer_displacement_layerScale, layer_displacement_layerOffset,
        layer_displacements, layer_displacements_order,
        layer_displacements_actualOrder
    ],
                             array=True,
                             utility=True,
                             affect=False)

    #
    primaryModes = [msg.longname
                    for msg in channels] + [aov.longname for aov in auxAOVs]

    # The primary display output, should always be color unless for debugging or when someone know what he's doing...
    primaryMode = deluxe.Enum(shortname='pmo',
                              choices=primaryModes,
                              default='beauty',
                              affect=False,
                              norsl=True)

    # The primary display lightset index is used for debugging, it should stay to -1 (disabled) otherwise
    primaryLightSetIndex = deluxe.Integer(shortname='pls',
                                          default=-1,
                                          min=-1,
                                          max=16,
                                          affect=False,
                                          norsl=True)

    #
    premultAux = deluxe.Boolean(shortname='pma', default=True)

    # Values of custom float AOVs
    customFloat = deluxe.Float(array=True, utility=True, affect=False)

    # Names of custom float AOVs
    customFloatName = deluxe.String(array=True, utility=True, affect=False)

    # Values of custom color AOVs
    customColor = deluxe.Color(default=0,
                               array=True,
                               utility=True,
                               affect=False)

    # Names of custom color AOVs
    customColorName = deluxe.String(array=True, utility=True, affect=False)

    #
    collapseComponents = deluxe.Boolean(shortname='clc',
                                        hidden=True,
                                        default=False,
                                        affect=False)
    collapseDisplacements = deluxe.Boolean(shortname='cld',
                                           hidden=True,
                                           default=False,
                                           affect=False)

    #
    displacement = deluxe.Float(output=True, shortname='od')

    # Used to initialise stupid attrFieldSliderGrp to get map button!
    phonyFloat = deluxe.Float(hidden=True, utility=True, affect=False)

    @classmethod
    def setCodeToken(cls, key, value):
        cls._codetokens[key] = value

    @classmethod
    def getCode(cls, code):
        result = code
        for key in cls._codetokens.keys():
            result = result.replace(key, cls._codetokens[key])
        return result

    @classmethod
    def getLine(cls, code):
        return '%s;\n' % cls.getCode(code)

    @classmethod
    def cleanupParamName(cls, name):
        cleanname = ''
        for c in name:
            if c in map(chr,
                        range(48, 58) + range(65, 91) + range(97, 123) + [95]):
                cleanname += c
        return cleanname

    @classmethod
    def getLayerId(cls, layer):
        return 'layers%d' % layer.logicalIndex()

    @classmethod
    def getLayerName(cls, layer):
        layerName = cls.cleanupParamName(
            layer.child(cls.layer_name.obj).asString())
        if len(layerName):
            return layerName
        return cls.getLayerId(layer)

    @classmethod
    def getLayerAttr(cls, layer):
        return 'layers[%d]' % layer.logicalIndex()

    @classmethod
    def setLayer(cls, layer):
        cls.setCodeToken('LAYERID', cls.getLayerId(layer))
        cls.setCodeToken('LAYERNAME', cls.getLayerName(layer))
        cls.setCodeToken('LAYERATTR', cls.getLayerAttr(layer))

    @classmethod
    def setChannel(cls, channel, lightsetindex=None):
        cls.setCodeToken(
            'CHANNELDECLARE', channel.rsltype +
            ['', '[]'][channel.array != None and channel.array])
        cls.setCodeToken('CHANNELAOVTYPE', channel.rsltype)
        cls.setCodeToken('CHANNELNAME', channel.longname)
        cls.setCodeToken('CHANNELLIGHTSET',
                         channel.getLightsetSuffix(lightsetindex))

    @classmethod
    def setVarPrefix(cls, varprefix):
        cls.setCodeToken('VARPREFIX', varprefix)

    def isSurfaceShader(self):

        # HUMM VERY VERY HACKY
        # Using this MEL global variable (from $DELIGHT/maya/scripts/DL_translateMayaToSl.mel) to know if this node is the actual shader or just an utility
        try:
            result = []
            MGlobal.executeCommand('$dl_layer_bogus = $g_final_color_plug;',
                                   result)
            plugnode = result[0].split('.')[0]
            return plugnode == MFnDependencyNode(self.thisMObject()).name()
        except:
            pass

        return True

    def isDisplacementShader(self):

        # HUMM VERY VERY HACKY
        # Using this MEL global variable (from $DELIGHT/maya/scripts/DL_translateMayaToSl.mel) to know if this node is the actual shader or just an utility
        result = []
        MGlobal.executeCommand(
            'string $dl_layer_bogus_array[]; $dl_layer_bogus_array = $g_src_plugs;',
            result)
        node, attr = result[0].split('.')
        return attr == 'displacement' and node == MFnDependencyNode(
            self.thisMObject()).name()

    def getPlugArray(self,
                     plug,
                     order=[],
                     connectedOnly=False,
                     checkChildren=False):

        # get existing
        idxs = MIntArray()
        plug.getExistingArrayAttributeIndices(idxs)

        # try to use order to sort existing idxs
        sortedIdxs = []
        for idx in order:
            if idx in idxs:
                sortedIdxs.append(idx)

        for idx in idxs:
            if idx not in sortedIdxs:
                sortedIdxs.append(idx)

        plugs = []
        for idx in sortedIdxs:
            idxplug = plug.elementByLogicalIndex(idx)
            if connectedOnly:
                incommingPlugs = MPlugArray()

                if checkChildren:
                    hasConnectedChild = False
                    for i in range(0, idxplug.numChildren()):
                        childplug = idxplug.child(i)
                        if childplug.connectedTo(incommingPlugs, 1, 0):
                            hasConnectedChild = True
                            break
                    if not hasConnectedChild:
                        continue
                else:
                    if not idxplug.connectedTo(incommingPlugs, 1, 0):
                        continue

            plugs.append(idxplug)

        return plugs

    def getLayers(self, enabled=True):
        thisObj = self.thisMObject()
        order = MFnIntArrayData(MPlug(thisObj,
                                      self.order.obj).asMObject()).array()
        allLayers = self.getPlugArray(MPlug(thisObj, self.layers.obj), order)
        layers = []
        for layer in allLayers:
            if layer.child(self.layer_enable.obj).asBool() or not enabled:
                layers.append(layer)

        return layers

    def getDisplacements(self, layerPlug, enabled=True):
        order = MFnIntArrayData(
            layerPlug.child(
                self.layer_displacements_order.obj).asMObject()).array()
        allDisplacements = self.getPlugArray(
            layerPlug.child(self.layer_displacements.obj), order)
        displacements = []
        for displacement in allDisplacements:
            if displacement.child(self.layer_displacement_enable.obj).asBool(
            ) or not enabled:
                displacements.append(displacement)

        return displacements

    #
    def getCustoms(self, type, allCustomParams, code=False, shaderOutput=True):
        customStr = ''
        attrName = 'custom%s' % type.capitalize()

        if not code:
            customStr += '%s[] %s[]\n' % (type, attrName)

        idx = 0
        namePlug = MPlug(self.thisMObject(),
                         getattr(self.__class__, '%sName' % attrName).obj)
        for plug in self.getPlugArray(namePlug):
            paramName = self.cleanupParamName(plug.asString())
            if len(paramName) and paramName not in allCustomParams:
                if code:
                    mult = 'opacity'
                    if type == 'float':
                        mult = 'luminance(%s)' % mult

                    customStr += '%s = %s[%d] * %s;\n' % (paramName, attrName,
                                                          idx, mult)
                elif shaderOutput:
                    customStr += 'shader_output varying %s %s\n' % (type,
                                                                    paramName)
                allCustomParams.append(paramName)
                idx += 1

        return customStr

    # Override from ShadingCodeComponent
    def getShadingCode(self):

        #
        shadingCode = ''

        # Include this class file for utility functions
        shadingCode += '#include "%s.h"\n' % self.__class__.__name__

        thisObj = self.thisMObject()

        #
        if self.isDisplacementShader():
            shadingCode += """
extern point P;
extern normal N;
extern normal Ng;
extern point __Porig;
extern normal __Norig;
// save P and N for use when raytracing without displacements
__Porig = P;
__Norig = N;
normal Nn = normalize(N);
normal deltaN = Nn - normalize(Ng);
point Pnew = P + Nn * displacementGlobalOffset;
normal Nnew = Nn;

float scaleComp = 1.0;
if(displacementCompensateScale){ 
    vector v0 = vtransform("object", vector(1, 0, 0));
    vector v1 = vtransform("object", vector(0, 1, 0));
    vector v2 = vtransform("object", vector(0, 0, 1));
    float compensate = (length(v0) + length(v1) + length(v2)) / 3;
    if(compensate)
        scaleComp = scaleComp / compensate;
}

float amount = 0;
"""
            layers = self.getLayers()

            for layer in reversed(layers):

                substractOverLayers = ''
                for toplayer in layers[layer.logicalIndex() + 1:]:
                    if toplayer.child(
                            self.layer_displacement_mode.obj).asShort() == 1:
                        self.setLayer(toplayer)
                        substractOverLayers += self.getCode(' - LAYERID_alpha')
                self.setLayer(layer)
                shadingCode += self.getLine(
                    'float LAYERID_alpha = clamp(luminance(LAYERID_layer_opacity)%s, 0, 1)'
                    % (substractOverLayers))

            for layer in layers:
                self.setLayer(layer)
                for displacement in self.getDisplacements(layer):
                    varbase = 'LAYERID_layer_displacements%i_layer_displacement' % displacement.logicalIndex(
                    )
                    shadingCode += self.getLine(
                        'amount = getLip(%s_lip, %s_lipRim, %s_amount)' %
                        (varbase, varbase, varbase))
                    shadingCode += self.getLine(
                        'amount = (amount * scaleComp * %s_scale * LAYERID_layer_displacement_layerScale * displacementGlobalScale + ((%s_offset + LAYERID_layer_displacement_layerOffset) * scaleComp)) * LAYERID_alpha * clamp(%s_alpha, 0, 1)'
                        % (varbase, varbase, varbase))

                    if displacement.child(
                            self.layer_displacement_useNormMap.obj).asShort():
                        shadingCode += self.getLine(
                            'Nnew += ntransform("object", "current", normal(%s_normMap))'
                            % (varbase))
                    shadingCode += self.getLine(
                        'getDisplacement(amount, %s_type, %s_recalcNorm, %s_useShadNorm, Pnew, normalize(Nnew), deltaN, Pnew, Nnew)'
                        % (varbase, varbase, varbase))

            shadingCode += """
    
P = Pnew;
N = Nnew;
"""
        else:

            #
            shadingCode += self.getLine('color resultColor, resultOpacity')

            # Add one cause lightset arrays are actually one based since index 0 is reserved for default lightset i.e. no lightset
            lightSetsCount = MPlug(thisObj, self.lightSetsCount.obj).asInt()
            if lightSetsCount < 1:
                lightSetsCount = 1

            # If this node is used as an actual shader we need the AOVs
            isSurfaceShader = self.isSurfaceShader()
            if isSurfaceShader:
                self.setVarPrefix('')
            else:

                # If not we declare local vars
                self.setVarPrefix('local_')
                shadingCode += self.getLine('color VARPREFIXopacity = 0')
                for channel in self.channels:
                    self.setChannel(channel)
                    if channel.array:
                        for i in range(0, lightSetsCount):
                            self.setChannel(channel, i)
                            shadingCode += self.getLine(
                                'color VARPREFIXCHANNELNAMECHANNELLIGHTSET = 0'
                            )
                    else:
                        shadingCode += self.getLine(
                            'color VARPREFIXCHANNELNAME = 0')

            # Loop into enabled layers
            for layer in self.getLayers():

                # Get all connected components to this layer
                components = self.getPlugArray(layer.child(
                    self.layer_components.obj),
                                               connectedOnly=True)

                self.setLayer(layer)

                # Mult layer opacity
                shadingCode += self.getLine(
                    'color LAYERNAME_opacity = LAYERID_layer_opacity')

                if not len(components):
                    continue

                # Blend opacity
                if layer.child(self.layer_blendOpacity.obj).asBool():
                    shadingCode += self.getLine(
                        'blend(LAYERID_layer_mode, 1, LAYERNAME_opacity, 1, VARPREFIXopacity, resultColor, VARPREFIXopacity)'
                    )

                #
                for channel in filter(lambda msg: not msg.array,
                                      self.channels):
                    self.setChannel(channel)
                    componentList = [
                        'LAYERID_layer_components%d_component_CHANNELNAME' %
                        (comp.logicalIndex()) for comp in components
                    ]
                    shadingCode += self.getLine(
                        'VARPREFIXCHANNELNAME = blend%ss(LAYERID_layer_mode, LAYERID_layer_premult, %s, LAYERNAME_opacity, VARPREFIXCHANNELNAME, VARPREFIXopacity)'
                        % (channel.apitype, string.join(componentList, ' + ')))

                # Blend all lightsets separatly
                for i in range(0, lightSetsCount):

                    # Build blendLightsets parameter list
                    blendFgInputs = [self.getCode('LAYERNAME_opacity')]
                    for channel in filter(lambda msg: msg.array,
                                          self.channels):
                        self.setChannel(channel)

                        # Add up all components
                        componentList = [
                            'LAYERID_layer_components%d_component_CHANNELNAME[%d]'
                            % (comp.logicalIndex(), i) for comp in components
                        ]
                        blendFgInputs.append(
                            self.getCode(string.join(componentList, ' + ')))

                    blendBgInputs = [self.getCode('VARPREFIXopacity')]
                    blendOutputs = []
                    for channel in filter(lambda msg: msg.array,
                                          self.channels):
                        self.setChannel(channel, i)
                        blendBgInputs.append(
                            self.getCode(
                                'VARPREFIXCHANNELNAMECHANNELLIGHTSET'))
                        blendOutputs.append(
                            self.getCode(
                                'VARPREFIXCHANNELNAMECHANNELLIGHTSET'))

                    #
                    blendParams = [
                        self.getCode('LAYERID_layer_mode'),
                        self.getCode('LAYERID_layer_premult')
                    ] + blendFgInputs + blendBgInputs + blendOutputs
                    shadingCode += 'blendLightsets(\n\t%s);\n' % string.join(
                        blendParams, ',\n\t')

            #
            shadingCode += self.getLine('VARPREFIXopacity *= globalOpacity')

            # Add (or substract) all channels to out color per light set
            for channel in self.channels:
                self.setChannel(channel)

                if channel.array:
                    accum_lightsets = []
                    for i in range(0, lightSetsCount):
                        self.setChannel(channel, i)

                        shadingCode += self.getLine(
                            'VARPREFIXCHANNELNAMECHANNELLIGHTSET *= globalOpacity'
                        )
                        accum_lightsets.append(
                            self.getCode(
                                'VARPREFIXCHANNELNAMECHANNELLIGHTSET'))

                    shadingCode += self.getLine(
                        'color CHANNELNAME_lightsets[] = {%s}' %
                        string.join(accum_lightsets, ', '))

                    if isSurfaceShader:
                        shadingCode += self.getLine(
                            'VARPREFIXCHANNELNAME = accumulateColors(CHANNELNAME_lightsets)'
                        )
                    else:
                        shadingCode += self.getLine(
                            'copyColors(CHANNELNAME_lightsets, outputComponent_output_CHANNELNAME)'
                        )
                else:
                    shadingCode += self.getLine(
                        'VARPREFIXCHANNELNAME *= globalOpacity')
                    if not isSurfaceShader:
                        shadingCode += self.getLine(
                            'outputComponent_output_CHANNELNAME = local_CHANNELNAME'
                        )

            if isSurfaceShader:

                layernames = []
                layeropacs = []
                for layer in self.getLayers():
                    self.setLayer(layer)
                    layernames.append(self.getCode('LAYERNAME'))
                    layeropacs.append(self.getCode('LAYERNAME_opacity'))

                puzzleParamStr = string.join(
                    [p.longname for p in self.puzzleAuxInputs], ', ')
                shadingCode += self.getLine('color layerOpacities[] = {%s}' %
                                            string.join(layeropacs, ','))
                shadingCode += self.getLine('string layerNames[] = {"%s"}' %
                                            string.join(layernames, '", "'))
                shadingCode += self.getLine(
                    'calculateAuxiliaries(opacity, premultAux, layerOpacities, layerNames, %s)'
                    % puzzleParamStr)

                allCustomParams = []
                shadingCode += self.getCustoms('float',
                                               allCustomParams,
                                               code=True)
                shadingCode += self.getCustoms('color',
                                               allCustomParams,
                                               code=True)

            #
            primaryModeIdx = MPlug(thisObj, self.primaryMode.obj).asShort()
            primaryMode = self.primaryModes[primaryModeIdx]
            primaryLightSetIndex = MPlug(
                thisObj, self.primaryLightSetIndex.obj).asInt()
            if primaryLightSetIndex >= 0 and primaryMode not in [
                    obj.longname for obj in self.auxAOVs
            ]:
                primaryMode += '_ls%d' % primaryLightSetIndex

            shadingCode += self.getLine('outColor = VARPREFIX%s' % primaryMode)
            shadingCode += self.getLine(
                'outTransparency = 1 - VARPREFIXopacity')

        return shadingCode

    # Override from ShadingCodeComponent
    def getShadingParameters(self):

        shadingParameters = ''
        thisObj = self.thisMObject()

        lightSetsCount = MPlug(thisObj, self.lightSetsCount.obj).asInt()
        if lightSetsCount < 1:
            lightSetsCount = 1

        isSurfaceShader = self.isSurfaceShader()
        isDisplacementShader = self.isDisplacementShader()

        #
        if isDisplacementShader:
            for attr in self.getShadingParametersAttributes():
                if not attr.output and attr.longname.startswith(
                        'displacement'):
                    shadingParameters += '%s %s\n' % (attr.rsltype,
                                                      attr.longname)
        else:
            shadingParameters += super(dl_layer, self).getShadingParameters()

        #
        for layer in self.getLayers():

            self.setLayer(layer)
            shadingParameters += self.getCode(
                'color LAYERATTR.layer_opacity\n')
            if isDisplacementShader:
                shadingParameters += self.getCode(
                    'float LAYERATTR.layer_displacement_layerScale\n')
                shadingParameters += self.getCode(
                    'float LAYERATTR.layer_displacement_layerOffset\n')
            else:
                shadingParameters += self.getCode(
                    'uniform float LAYERATTR.layer_mode\n')

            if isDisplacementShader:
                for displacement in self.getDisplacements(layer):
                    displacementIndex = displacement.logicalIndex()
                    for child in self.layer_displacement_children:
                        if child.utility:
                            shadingParameters += self.getCode(
                                '%s LAYERATTR.layer_displacements[%d].%s\n' %
                                (child.rsltype, displacementIndex,
                                 child.longname))
            else:
                shadingParameters += self.getCode(
                    'float LAYERATTR.layer_premult\n')
                for component in self.getPlugArray(layer.child(
                        self.layer_components.obj),
                                                   connectedOnly=True):
                    componentIndex = component.logicalIndex()
                    shadingParameters += self.getCode(
                        'void%d LAYERATTR.layer_components[%d]\n' %
                        (lightSetsCount, componentIndex))
                    for channel in self.channels:
                        self.setChannel(channel)
                        shadingParameters += self.getCode(
                            'CHANNELDECLARE LAYERATTR.layer_components[%d].component_CHANNELNAME\n'
                            % componentIndex)

        if isSurfaceShader:

            shadingParameters += self.getCode(
                'shader_output varying color opacity\n')

            for channel in self.channels:
                self.setChannel(channel)
                shadingParameters += self.getCode(
                    'shader_output varying CHANNELAOVTYPE CHANNELNAME\n')
                if channel.array:
                    for i in range(0, lightSetsCount):
                        self.setChannel(channel, i)
                        shadingParameters += self.getCode(
                            'shader_output varying CHANNELAOVTYPE CHANNELNAMECHANNELLIGHTSET\n'
                        )

            for auxAOV in self.auxAOVs:
                shadingParameters += self.getCode(
                    'shader_output varying %s %s\n' %
                    (auxAOV.rsltype, auxAOV.longname))

        if isDisplacementShader:
            shadingParameters += 'shader_output varying point __Porig\n'
            shadingParameters += 'shader_output varying normal __Norig\n'

        #
        if not isDisplacementShader:

            allCustomParams = []
            shadingParameters += self.getCustoms('float',
                                                 allCustomParams,
                                                 shaderOutput=isSurfaceShader)
            shadingParameters += self.getCustoms('color',
                                                 allCustomParams,
                                                 shaderOutput=isSurfaceShader)

        return shadingParameters

    def getInternalValueInContext(self, plug, dataHandle, ctx):

        if plug.attribute() == self.__class__.actualOrder.obj:
            layers = self.getLayers(enabled=False)
            order = MIntArray()
            for layer in layers:
                order.append(layer.logicalIndex())
            dataHandle.setMObject(MFnIntArrayData().create(order))
            return True
        elif plug.attribute(
        ) == self.__class__.layer_displacements_actualOrder.obj:
            displacements = self.getDisplacements(plug.parent(), enabled=False)
            order = MIntArray()
            for displacement in displacements:
                order.append(displacement.logicalIndex())
            dataHandle.setMObject(MFnIntArrayData().create(order))
            return True

        return super(dl_layer,
                     self).getInternalValueInContext(plug, dataHandle, ctx)

    def compute(self, plug, data):

        if plug == self.outColor.obj:
            r, g, b = data.inputValue(self.displayColor.obj).asFloat3()
            data.outputValue(plug).set3Float(r, g, b)
            return data.setClean(plug)
        elif plug == self.outTransparency.obj:
            r, g, b = data.inputValue(self.displayOpacity.obj).asFloat3()
            data.outputValue(plug).set3Float(1.0 - r, 1.0 - g, 1.0 - b)
            return data.setClean(plug)

        return super(dl_layer, self).compute(plug, data)

    def postConstructor(self):

        # We always have at least one layer
        # TODO: maybe make this less systematic
        layerPlug = MPlug(self.thisMObject(), self.layers.obj)
        layer0Plug = layerPlug.elementByLogicalIndex(0)
        layerNamePlug = layer0Plug.child(self.layer_name.obj)
        layerNamePlug.setMObject(MFnStringData().create('layer0'))

        super(dl_layer, self).postConstructor()

    template = 'source dl_layer'