//This function is also responsible for downsampling the depth buffer and binding it
protected RenderTexture DepthOfFieldStep(PostProcessParameters postProcessParams, RenderTexture source)
{
if (postProcessParams.depthOfField == false)
{
return(source);
}
RenderTexture exclusionMask = null;
if (postProcessParams.DoFParams.depthOfFieldMask != 0) //If objects are masked out
{
exclusionMask = m_depthOfFieldClass.RenderExclusionMask(postProcessParams.width, postProcessParams.height, postProcessParams.camera,
postProcessParams.cameraTransform, postProcessParams.DoFParams.depthOfFieldMask);
//ScionPostProcess.ActiveDebug.RegisterTextureForVisualization(exclusionMask, false, false, false);
RenderTexture downsampledExclusionMask = m_downsampling.DownsampleMinFilter(source.width, source.height, exclusionMask);
RenderTexture.ReleaseTemporary(exclusionMask);
exclusionMask = downsampledExclusionMask;
}
//postProcessParams.halfResSource = m_downsampling.DownsampleFireflyRemoving(source);
postProcessParams.halfResSource = m_downsampling.DownsampleFireflyRemovingBilateral(source, postProcessParams.halfResDepth);
source = m_depthOfFieldClass.RenderDepthOfField(postProcessParams, source, m_virtualCamera, exclusionMask);
//Downsample scene again, this time with DoF applied
RenderTexture.ReleaseTemporary(postProcessParams.halfResSource);
if (exclusionMask != null)
{
RenderTexture.ReleaseTemporary(exclusionMask);
}
return(source);
}