class GlobalIlluminationPass(RenderPass):
""" This pass performs voxel cone tracing over the previously generated
voxel grid to compute a diffuse, specular and ambient term which can be
used later in the lighting pass """
def __init__(self):
RenderPass.__init__(self)
def getID(self):
return "GlobalIlluminationPass"
def getRequiredInputs(self):
return {
"data0": "DeferredScenePass.data0",
"data1": "DeferredScenePass.data1",
"data2": "DeferredScenePass.data2",
"data3": "DeferredScenePass.data3",
"giData": "Variables.giVoxelGridData",
"cameraPosition": "Variables.cameraPosition",
"mainCam": "Variables.mainCam",
"mainRender": "Variables.mainRender"
}
def create(self):
self.target = RenderTarget("GlobalIlluminationPass")
self.target.setHalfResolution()
self.target.addColorTexture()
self.target.addAuxTexture()
self.target.setColorBits(16)
self.target.setAuxBits(16)
self.target.prepareOffscreenBuffer()
def setShaders(self):
shader = Shader.load(Shader.SLGLSL,
"Shader/DefaultPostProcess.vertex",
"Shader/ComputeGI.fragment")
self.target.setShader(shader)
return [shader]
def getOutputs(self):
return {
"GlobalIlluminationPass.diffuseResult": lambda: self.target.getColorTexture(),
"GlobalIlluminationPass.specularResult": lambda: self.target.getAuxTexture(0)
}
