void EvaluateShadowDebugView(CommandBuffer cmd, HDCamera hdCamera)
{
// If this is the right debug mode and the index we are asking for is in the range
HDRenderPipeline hdrp = (RenderPipelineManager.currentPipeline as HDRenderPipeline);
if (FullScreenDebugMode.ScreenSpaceShadows == hdrp.m_CurrentDebugDisplaySettings.data.fullScreenDebugMode)
{
if (!hdrp.rayTracingSupported || (m_ScreenSpaceShadowChannelSlot <= hdrp.m_CurrentDebugDisplaySettings.data.screenSpaceShadowIndex))
{
// In this case we have not rendered any screenspace shadows, so push a black texture on the debug display
hdrp.PushFullScreenDebugTexture(hdCamera, cmd, TextureXR.GetBlackTextureArray(), FullScreenDebugMode.ScreenSpaceShadows);
return;
}
// Fetch the buffer where we we will store our result
RTHandle debugResultBuffer = GetRayTracingBuffer(InternalRayTracingBuffers.RGBA0);
// Generate the debug view
SSShadowDebugParameters sssdParams = PrepareSSShadowDebugParameters(hdCamera, (int)hdrp.m_CurrentDebugDisplaySettings.data.screenSpaceShadowIndex);
SSShadowDebugResources sssdResources = PrepareSSShadowDebugResources(debugResultBuffer);
ExecuteShadowDebugView(cmd, sssdParams, sssdResources);
// Push the full screen debug texture
hdrp.PushFullScreenDebugTexture(hdCamera, cmd, debugResultBuffer, FullScreenDebugMode.ScreenSpaceShadows);
}
}
TextureHandle EvaluateShadowDebugView(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle screenSpaceShadowArray)
{
// If this is the right debug mode and the index we are asking for is in the range
if (!rayTracingSupported || (m_ScreenSpaceShadowChannelSlot <= m_CurrentDebugDisplaySettings.data.screenSpaceShadowIndex))
{
return(m_RenderGraph.defaultResources.blackTextureXR);
}
using (var builder = renderGraph.AddRenderPass <ScreenSpaceShadowDebugPassData>("Screen Space Shadows Debug", out var passData, ProfilingSampler.Get(HDProfileId.ScreenSpaceShadowsDebug)))
{
passData.parameters = PrepareSSShadowDebugParameters(hdCamera, (int)m_CurrentDebugDisplaySettings.data.screenSpaceShadowIndex);
passData.screenSpaceShadowArray = builder.ReadTexture(screenSpaceShadowArray);
passData.outputBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "EvaluateShadowDebug"
}));
builder.SetRenderFunc(
(ScreenSpaceShadowDebugPassData data, RenderGraphContext context) =>
{
SSShadowDebugResources resources = new SSShadowDebugResources();
resources.screenSpaceShadowArray = data.screenSpaceShadowArray;
resources.outputBuffer = data.outputBuffer;
ExecuteShadowDebugView(context.cmd, data.parameters, resources);
});
return(passData.outputBuffer);
}
}
SSShadowDebugResources PrepareSSShadowDebugResources(RTHandle debugResultBuffer)
{
SSShadowDebugResources sssdResources = new SSShadowDebugResources();
sssdResources.screenSpaceShadowArray = m_ScreenSpaceShadowTextureArray;
sssdResources.outputBuffer = debugResultBuffer;
return(sssdResources);
}
static void ExecuteShadowDebugView(CommandBuffer cmd, SSShadowDebugParameters sssdParams, SSShadowDebugResources sssdResources)
{
// Evaluate the dispatch parameters
int shadowTileSize = 8;
int numTilesX = (sssdParams.texWidth + (shadowTileSize - 1)) / shadowTileSize;
int numTilesY = (sssdParams.texHeight + (shadowTileSize - 1)) / shadowTileSize;
// If the screen space shadows we are asked to deliver is available output it to the intermediate texture
cmd.SetComputeIntParam(sssdParams.shadowFilter, HDShaderIDs._DenoisingHistorySlot, sssdParams.targetShadow);
cmd.SetComputeTextureParam(sssdParams.shadowFilter, sssdParams.debugKernel, HDShaderIDs._ScreenSpaceShadowsTextureRW, sssdResources.screenSpaceShadowArray);
cmd.SetComputeTextureParam(sssdParams.shadowFilter, sssdParams.debugKernel, HDShaderIDs._DenoiseOutputTextureRW, sssdResources.outputBuffer);
cmd.DispatchCompute(sssdParams.shadowFilter, sssdParams.debugKernel, numTilesX, numTilesY, sssdParams.viewCount);
}
