public void ShadowCollectPass(List <VisibleLight> visibleLights, ref ScriptableRenderContext context, ref LightData lightData, FrameRenderingConfiguration frameRenderingConfiguration,
Camera currentCamera)
{
if (!m_ShadowSettings.screenSpace)
{
return;
}
CommandBuffer cmd = CommandBufferPool.Get("Collect Shadows");
SetShadowCollectPassKeywords(cmd, visibleLights[lightData.mainLightIndex], ref lightData);
// TODO: Support RenderScale for the SSSM target. Should probably move allocation elsewhere, or at
// least propogate RenderTextureDescriptor generation
if (LightweightUtils.HasFlag(frameRenderingConfiguration, FrameRenderingConfiguration.Stereo))
{
var desc = XRSettings.eyeTextureDesc;
desc.depthBufferBits = 0;
desc.colorFormat = m_ShadowSettings.screenspaceShadowmapTextureFormat;
cmd.GetTemporaryRT(m_ScreenSpaceShadowMapRTID, desc, FilterMode.Bilinear);
}
else
{
cmd.GetTemporaryRT(m_ScreenSpaceShadowMapRTID, currentCamera.pixelWidth, currentCamera.pixelHeight, 0, FilterMode.Bilinear, m_ShadowSettings.screenspaceShadowmapTextureFormat);
}
// Note: The source isn't actually 'used', but there's an engine peculiarity (bug) that
// doesn't like null sources when trying to determine a stereo-ized blit. So for proper
// stereo functionality, we use the screen-space shadow map as the source (until we have
// a better solution).
// An alternative would be DrawProcedural, but that would require further changes in the shader.
cmd.Blit(m_ScreenSpaceShadowMapRT, m_ScreenSpaceShadowMapRT, m_ScreenSpaceShadowsMaterial);
StereoRendering.Start(ref context, frameRenderingConfiguration, currentCamera);
context.ExecuteCommandBuffer(cmd);
StereoRendering.Stop(ref context, frameRenderingConfiguration, currentCamera);
CommandBufferPool.Release(cmd);
}
private void DepthPass(ref ScriptableRenderContext context, FrameRenderingConfiguration frameRenderingConfiguration, FilterResults visibleRenderers, Camera camera)
{
CommandBuffer cmd = CommandBufferPool.Get("Depth Prepass");
m_TextureUtil.SetRenderTarget(cmd, m_DepthRT, camera.backgroundColor, ClearFlag.Depth);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
var opaqueDrawSettings = new DrawRendererSettings(camera, m_DepthPrepass);
opaqueDrawSettings.sorting.flags = SortFlags.CommonOpaque;
var opaqueFilterSettings = new FilterRenderersSettings(true)
{
renderQueueRange = RenderQueueRange.opaque
};
StereoRendering.Start(ref context, frameRenderingConfiguration, camera);
context.DrawRenderers(visibleRenderers, ref opaqueDrawSettings, opaqueFilterSettings);
StereoRendering.Stop(ref context, frameRenderingConfiguration, camera);
}