"""

This class responsible for linear workflow

Mental Ray configurtaion

"""

def __init__(self):

pass

def set_linear_settings(self):

# Make render tab set to Mentalray

current_renderer = pm.setAttr('defaultRenderGlobals.currentRenderer', 'mentalRay', type='string')

# Turn on Enable Color Management and update the other widgets accordingly

Enable_color_managment = pm.setAttr('defaultRenderGlobals.colorProfileEnabled', 1)

pm.mel.updateCommonColorProfile()

utils.set_attrs( pm, {

# Swich Image Format to EXR and Image compression to PIZ

'defaultRenderGlobals.imageFormat': 51,

'defaultRenderGlobals.imfPluginKey':'exr',

'mentalrayGlobals.imageCompression': 3,

# Switch Date Type to RGBA(Float) 4*32 Bit under Framebuffer in Quality tab

'miDefaultFramebuffer.datatype': 5,

#Set the Default View Color Manager

'defaultViewColorManager.imageColorProfile': 2,

})

def gammaCorrect_node(self):

# Create a GammaCorrect node to correct the gamma value of color of the Materials shader

# Create a GammaCorrect node

shader = pm.shadingNode('gammaCorrect', asShader = True)

# Create a file texture node

file_node = pm.shadingNode('file', asTexture = True)

# a shading group

shading_group = pm.sets(renderable = True, noSurfaceShader = True, empty = True)

# Connect shader to sg surface shader

pm.connectAttr('%s.value' % shader ,'%s.surfaceShader' % shading_group)

# Connect file texture node to shader's color

pm.connectAttr('%s.outColor' % file_node, '%s.value' % shader)

# Set the gamma value to 0.454