def __init__(self):
base.disableMouse()
base.cam.node().getLens().setNear(10.0)
base.cam.node().getLens().setFar(200.0)
camera.setPos(0, -50, 0)
# Check video card capabilities.
if (base.win.getGsg().getSupportsBasicShaders() == 0):
addTitle(
"Toon Shader: Video driver reports that shaders are not supported."
)
return
# Enable a 'light ramp' - this discretizes the lighting,
# which is half of what makes a model look like a cartoon.
# Light ramps only work if shader generation is enabled,
# so we call 'setShaderAuto'.
tempnode = NodePath(PandaNode("temp node"))
tempnode.setAttrib(LightRampAttrib.makeSingleThreshold(0.5, 0.4))
tempnode.setShaderAuto()
base.cam.node().setInitialState(tempnode.getState())
# Use class 'CommonFilters' to enable a cartoon inking filter.
# This can fail if the video card is not powerful enough, if so,
# display an error and exit.
self.separation = 1 # Pixels
self.filters = CommonFilters(base.win, base.cam)
filterok = self.filters.setCartoonInk(separation=self.separation)
if (filterok == False):
addTitle(
"Toon Shader: Video card not powerful enough to do image postprocessing"
)
return
# Post the instructions.
self.title = addTitle(
"Panda3D: Tutorial - Toon Shading with Normals-Based Inking")
self.inst1 = addInstructions(0.95, "ESC: Quit")
self.inst2 = addInstructions(
0.90, "Up/Down: Increase/Decrease Line Thickness")
self.inst3 = addInstructions(0.85,
"V: View the render-to-texture results")
# Load a dragon model and animate it.
self.character = Actor()
self.character.loadModel('models/samples/cartoon/nik_dragon')
self.character.reparentTo(render)
self.character.loadAnims({'win': 'models/samples/cartoon/nik_dragon'})
self.character.loop('win')
self.character.hprInterval(15, Point3(360, 0, 0)).loop()
# Create a non-attenuating point light and an ambient light.
plightnode = PointLight("point light")
plightnode.setAttenuation(Vec3(1, 0, 0))
plight = render.attachNewNode(plightnode)
plight.setPos(30, -50, 0)
alightnode = AmbientLight("ambient light")
alightnode.setColor(Vec4(0.8, 0.8, 0.8, 1))
alight = render.attachNewNode(alightnode)
render.setLight(alight)
render.setLight(plight)
# Panda contains a built-in viewer that lets you view the
# results of all render-to-texture operations. This lets you
# see what class CommonFilters is doing behind the scenes.
self.accept("v", base.bufferViewer.toggleEnable)
self.accept("V", base.bufferViewer.toggleEnable)
base.bufferViewer.setPosition("llcorner")
self.accept("s", self.filters.manager.resizeBuffers)
# These allow you to change cartooning parameters in realtime
self.accept("escape", sys.exit, [0])
self.accept("arrow_up", self.increaseSeparation)
self.accept("arrow_down", self.decreaseSeparation)
def __init__( self ):
#The main initialization of our class
#This creates the on screen title that is in every tutorial
self.title = OnscreenText(text="Panda3D: Tutorial - Lighting",
style=1, fg=(1,1,0,1), font = font,
pos=(0.87,-0.95), scale = .07)
#Creates labels used for onscreen instructions
self.ambientText = self.makeStatusLabel(0)
self.directionalText = self.makeStatusLabel(1)
self.spotlightText = self.makeStatusLabel(2)
self.pointLightText = self.makeStatusLabel(3)
self.spinningText = self.makeStatusLabel(4)
self.ambientBrightnessText = self.makeStatusLabel(5)
self.directionalBrightnessText = self.makeStatusLabel(6)
self.spotlightBrightnessText = self.makeStatusLabel(7)
self.spotlightExponentText = self.makeStatusLabel(8)
self.lightingPerPixelText = self.makeStatusLabel(9)
self.disco = loader.loadModel("models/samples/disco_lights/disco_hall")
self.disco.reparentTo(render)
self.disco.setPosHpr(0, 50, -4, 90, 0, 0)
# First we create an ambient light. All objects are affected by ambient
# light equally
#Create and name the ambient light
self.ambientLight = render.attachNewNode( AmbientLight( "ambientLight" ) )
#Set the color of the ambient light
self.ambientLight.node().setColor( Vec4( .1, .1, .1, 1 ) )
#add the newly created light to the lightAttrib
# Now we create a directional light. Directional lights add shading from a
# given angle. This is good for far away sources like the sun
self.directionalLight = render.attachNewNode( DirectionalLight(
"directionalLight" ) )
self.directionalLight.node().setColor( Vec4( .35, .35, .35, 1 ) )
# The direction of a directional light is set as a 3D vector
self.directionalLight.node().setDirection( Vec3( 1, 1, -2 ) )
# Now we create a spotlight. Spotlights light objects in a given cone
# They are good for simulating things like flashlights
self.spotlight = camera.attachNewNode( Spotlight( "spotlight" ) )
self.spotlight.node().setColor( Vec4( .45, .45, .45, 1 ) )
#The cone of a spotlight is controlled by it's lens. This creates the lens
self.spotlight.node().setLens( PerspectiveLens() )
#This sets the Field of View (fov) of the lens, in degrees for width and
#height. The lower the numbers, the tighter the spotlight.
self.spotlight.node().getLens().setFov( 16, 16 )
# Attenuation controls how the light fades with distance. The numbers are
# The three values represent the three constants (constant, linear, and
# quadratic) in the internal lighting equation. The higher the numbers the
# shorter the light goes.
self.spotlight.node().setAttenuation( Vec3( 1, 0.0, 0.0 ) )
# This exponent value sets how soft the edge of the spotlight is. 0 means a
# hard edge. 128 means a very soft edge.
self.spotlight.node().setExponent( 60.0 )
# Now we create three colored Point lights. Point lights are lights that
# radiate from a single point, like a light bulb. Like spotlights, they
# are given position by attaching them to NodePaths in the world
self.redHelper = loader.loadModel('models/samples/disco_lights/sphere')
self.redHelper.setColor( Vec4( 1, 0, 0, 1 ) )
self.redHelper.setPos( -6.5, -3.75, 0 )
self.redHelper.setScale(.25)
self.redPointLight = self.redHelper.attachNewNode( PointLight(
"redPointLight" ) )
self.redPointLight.node().setColor( Vec4( .35, 0, 0, 1 ) )
self.redPointLight.node().setAttenuation( Vec3( .1, 0.04, 0.0 ) )
#The green point light and helper
self.greenHelper = loader.loadModel('models/samples/disco_lights/sphere')
self.greenHelper.setColor( Vec4( 0, 1, 0, 1 ) )
self.greenHelper.setPos( 0, 7.5, 0 )
self.greenHelper.setScale(.25)
self.greenPointLight = self.greenHelper.attachNewNode( PointLight(
"greenPointLight" ) )
self.greenPointLight.node().setAttenuation( Vec3( .1, .04, .0 ) )
self.greenPointLight.node().setColor( Vec4( 0, .35, 0, 1 ) )
#The blue point light and helper
self.blueHelper = loader.loadModel('models/samples/disco_lights/sphere')
self.blueHelper.setColor( Vec4( 0, 0, 1, 1 ) )
self.blueHelper.setPos( 6.5, -3.75, 0 )
self.blueHelper.setScale(.25)
self.bluePointLight = self.blueHelper.attachNewNode( PointLight( "bluePointLight" ) )
self.bluePointLight.node().setAttenuation( Vec3( .1, 0.04, 0.0 ) )
self.bluePointLight.node().setColor( Vec4( 0, 0, .35, 1 ) )
self.bluePointLight.node().setSpecularColor( Vec4( 1 ) )
#Create a dummy node so the lights can be spun with one command
self.pointLightHelper = render.attachNewNode( "pointLightHelper" )
self.pointLightHelper.setPos(0, 50, 11)
self.redHelper.reparentTo( self.pointLightHelper )
self.greenHelper.reparentTo( self.pointLightHelper )
self.blueHelper.reparentTo( self.pointLightHelper )
#Finally we store the lights on the root of the scene graph.
#This will cause them to affect everything in the scene.
render.setLight( self.ambientLight )
render.setLight( self.directionalLight )
render.setLight( self.spotlight )
render.setLight( self.redPointLight )
render.setLight( self.greenPointLight )
render.setLight( self.bluePointLight )
# Create and start interval to spin the lights, and a variable to
# manage them.
self.pointLightsSpin = self.pointLightHelper.hprInterval(6, Vec3(360, 0, 0))
self.pointLightsSpin.loop()
self.arePointLightsSpinning = True
# Per-pixel lighting is initially off
self.perPixelEnabled = False
# listen to keys for controlling the lights
self.accept( "escape", sys.exit)
self.accept( "a", self.toggleLights, [[self.ambientLight]] )
self.accept( "d", self.toggleLights, [[self.directionalLight]] )
self.accept( "s", self.toggleLights, [[self.spotlight]] )
self.accept( "p", self.toggleLights, [[self.redPointLight,
self.greenPointLight,
self.bluePointLight]] )
self.accept( "r", self.toggleSpinningPointLights )
self.accept( "l", self.togglePerPixelLighting )
self.accept( "z", self.addBrightness, [self.ambientLight, -.05] )
self.accept( "x", self.addBrightness, [self.ambientLight, .05] )
self.accept( "c", self.addBrightness, [self.directionalLight, -.05] )
self.accept( "v", self.addBrightness, [self.directionalLight, .05] )
self.accept( "b", self.addBrightness, [self.spotlight, -.05] )
self.accept( "n", self.addBrightness, [self.spotlight, .05] )
self.accept( "q", self.adjustSpotlightExponent, [self.spotlight, -1] )
self.accept( "w", self.adjustSpotlightExponent, [self.spotlight, 1] )
#Finally call the function that builds the instruction texts
self.updateStatusLabel()
def __init__(self):
base.disableMouse()
base.cam.node().getLens().setNear(10.0)
base.cam.node().getLens().setFar(200.0)
camera.setPos(0, -50, 0)
# Check video card capabilities.
if (base.win.getGsg().getSupportsBasicShaders() == 0):
addTitle("Toon Shader: Video driver reports that shaders are not supported.")
return
# Enable a 'light ramp' - this discretizes the lighting,
# which is half of what makes a model look like a cartoon.
# Light ramps only work if shader generation is enabled,
# so we call 'setShaderAuto'.
tempnode = NodePath(PandaNode("temp node"))
tempnode.setAttrib(LightRampAttrib.makeSingleThreshold(0.5, 0.4))
tempnode.setShaderAuto()
base.cam.node().setInitialState(tempnode.getState())
# Use class 'CommonFilters' to enable a cartoon inking filter.
# This can fail if the video card is not powerful enough, if so,
# display an error and exit.
self.separation = 1 # Pixels
self.filters = CommonFilters(base.win, base.cam)
filterok = self.filters.setCartoonInk(separation=self.separation)
if (filterok == False):
addTitle("Toon Shader: Video card not powerful enough to do image postprocessing")
return
# Post the instructions.
self.title = addTitle("Panda3D: Tutorial - Toon Shading with Normals-Based Inking")
self.inst1 = addInstructions(0.95,"ESC: Quit")
self.inst2 = addInstructions(0.90,"Up/Down: Increase/Decrease Line Thickness")
self.inst3 = addInstructions(0.85,"V: View the render-to-texture results")
# Load a dragon model and animate it.
self.character = Actor()
self.character.loadModel('models/samples/cartoon/nik_dragon')
self.character.reparentTo(render)
self.character.loadAnims({'win': 'models/samples/cartoon/nik_dragon'})
self.character.loop('win')
self.character.hprInterval(15, Point3(360, 0,0)).loop()
# Create a non-attenuating point light and an ambient light.
plightnode = PointLight("point light")
plightnode.setAttenuation(Vec3(1,0,0))
plight = render.attachNewNode(plightnode)
plight.setPos(30,-50,0)
alightnode = AmbientLight("ambient light")
alightnode.setColor(Vec4(0.8,0.8,0.8,1))
alight = render.attachNewNode(alightnode)
render.setLight(alight)
render.setLight(plight)
# Panda contains a built-in viewer that lets you view the
# results of all render-to-texture operations. This lets you
# see what class CommonFilters is doing behind the scenes.
self.accept("v", base.bufferViewer.toggleEnable)
self.accept("V", base.bufferViewer.toggleEnable)
base.bufferViewer.setPosition("llcorner")
self.accept("s", self.filters.manager.resizeBuffers)
# These allow you to change cartooning parameters in realtime
self.accept("escape", sys.exit, [0])
self.accept("arrow_up", self.increaseSeparation)
self.accept("arrow_down", self.decreaseSeparation)
def __init__(self):
# Check video card capabilities.
if (base.win.getGsg().getSupportsBasicShaders() == 0):
addTitle("Normal Mapping: Video driver reports that shaders are not supported.")
return
# Post the instructions
self.title = addTitle("Panda3D: Tutorial - Normal Mapping (aka Bump Mapping)")
self.inst1 = addInstructions(0.95, "Press ESC to exit")
self.inst2 = addInstructions(0.90, "Move mouse to rotate camera")
self.inst3 = addInstructions(0.85, "Left mouse button: Move forwards")
self.inst4 = addInstructions(0.80, "Right mouse button: Move backwards")
self.inst5 = addInstructions(0.75, "Enter: Turn normal maps Off")
# Load the 'abstract room' model. This is a model of an
# empty room containing a pillar, a pyramid, and a bunch
# of exaggeratedly bumpy textures.
self.room = loader.loadModel( \
"models/samples/normal_mapping/abstractroom")
self.room.reparentTo(render)
# Make the mouse invisible, turn off normal mouse controls
base.disableMouse()
props = WindowProperties()
props.setCursorHidden(True)
base.win.requestProperties(props)
# Set the current viewing target
self.focus = Vec3(55,-55,20)
self.heading = 180
self.pitch = 0
self.mousex = 0
self.mousey = 0
self.last = 0
self.mousebtn = [0,0,0]
# Start the camera control task:
taskMgr.add(self.controlCamera, "camera-task")
self.accept("escape", sys.exit, [0])
self.accept("mouse1", self.setMouseBtn, [0, 1])
self.accept("mouse1-up", self.setMouseBtn, [0, 0])
self.accept("mouse2", self.setMouseBtn, [1, 1])
self.accept("mouse2-up", self.setMouseBtn, [1, 0])
self.accept("mouse3", self.setMouseBtn, [2, 1])
self.accept("mouse3-up", self.setMouseBtn, [2, 0])
self.accept("enter", self.toggleShader)
self.accept("j", self.rotateLight, [-1])
self.accept("k", self.rotateLight, [1])
self.accept("arrow_left", self.rotateCam, [-1])
self.accept("arrow_right", self.rotateCam, [1])
# Add a light to the scene.
self.lightpivot = render.attachNewNode("lightpivot")
self.lightpivot.setPos(0,0,25)
self.lightpivot.hprInterval(10,Point3(360,0,0)).loop()
plight = PointLight('plight')
plight.setColor(Vec4(1, 1, 1, 1))
plight.setAttenuation(Vec3(0.7,0.05,0))
plnp = self.lightpivot.attachNewNode(plight)
plnp.setPos(45, 0, 0)
self.room.setLight(plnp)
self.room.setShaderInput("light", plnp)
# Add an ambient light
alight = AmbientLight('alight')
alight.setColor(Vec4(0.2, 0.2, 0.2, 1))
alnp = render.attachNewNode(alight)
self.room.setLight(alnp)
# create a sphere to denote the light
sphere = loader.loadModel("models/samples/normal_mapping/sphere")
sphere.reparentTo(plnp)
# load and apply the shader. This is using panda's
# built-in shader generation capabilities to create the
# shader for you. However, if desired, you can supply
# the shader manually. Change this line of code to:
# self.room.setShader(Shader.load("bumpMapper.sha"))
self.room.setShaderAuto()
self.shaderenable = 1
