294 lines
14 KiB
C#
294 lines
14 KiB
C#
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using System;
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using UnityEngine.Experimental.Rendering;
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using UnityEngine.Rendering.RenderGraphModule;
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namespace UnityEngine.Rendering.Universal
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{
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/// <summary>
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/// Generate HDR debug data into the given color target
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/// </summary>
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internal class HDRDebugViewPass : ScriptableRenderPass
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{
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private enum HDRDebugPassId
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{
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CIExyPrepass = 0,
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DebugViewPass = 1
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}
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PassDataCIExy m_PassDataCIExy;
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PassDataDebugView m_PassDataDebugView;
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RTHandle m_CIExyTarget; // xyBuffer;
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RTHandle m_PassthroughRT;
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Material m_material;
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/// <summary>
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/// Creates a new <c>HDRDebugViewPass</c> instance.
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/// </summary>
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/// <param name="mat">The <c>Material</c> to use.</param>
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/// <seealso cref="RenderPassEvent"/>
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public HDRDebugViewPass(Material mat)
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{
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profilingSampler = new ProfilingSampler("Blit HDR Debug Data");
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renderPassEvent = RenderPassEvent.AfterRendering + 3;
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m_PassDataCIExy = new PassDataCIExy() { material = mat };
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m_PassDataDebugView = new PassDataDebugView() { material = mat };
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m_material = mat;
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// Disabling native render passes (for non-RG) because it renders to 2 different render targets
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useNativeRenderPass = false;
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}
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// Common to RenderGraph and non-RenderGraph paths
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private class PassDataCIExy
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{
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internal Material material;
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internal Vector4 luminanceParameters;
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internal TextureHandle srcColor;
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internal TextureHandle xyBuffer;
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internal TextureHandle passThrough;
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}
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private class PassDataDebugView
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{
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internal Material material;
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internal HDRDebugMode hdrDebugMode;
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internal UniversalCameraData cameraData;
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internal Vector4 luminanceParameters;
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internal TextureHandle overlayUITexture;
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internal TextureHandle xyBuffer;
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internal TextureHandle srcColor;
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internal TextureHandle dstColor;
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}
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public static void ConfigureDescriptorForCIEPrepass(ref RenderTextureDescriptor descriptor)
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{
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descriptor.graphicsFormat = GraphicsFormat.R32_SFloat;
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descriptor.width = descriptor.height = ShaderConstants._SizeOfHDRXYMapping;
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descriptor.useMipMap = false;
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descriptor.autoGenerateMips = false;
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descriptor.useDynamicScale = true;
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descriptor.depthStencilFormat = GraphicsFormat.None;
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descriptor.enableRandomWrite = true;
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descriptor.msaaSamples = 1;
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descriptor.dimension = TextureDimension.Tex2D;
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descriptor.vrUsage = VRTextureUsage.None; // We only need one for both eyes in VR
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}
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internal static Vector4 GetLuminanceParameters(UniversalCameraData cameraData)
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{
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var luminanceParams = Vector4.zero;
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if (cameraData.isHDROutputActive)
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{
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Tonemapping tonemapping = VolumeManager.instance.stack.GetComponent<Tonemapping>();
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UniversalRenderPipeline.GetHDROutputLuminanceParameters(cameraData.hdrDisplayInformation, cameraData.hdrDisplayColorGamut, tonemapping, out luminanceParams);
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}
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else
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{
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luminanceParams.z = 1.0f;
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}
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return luminanceParams;
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}
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private static void ExecuteCIExyPrepass(CommandBuffer cmd, PassDataCIExy data, RTHandle sourceTexture, RTHandle xyTarget, RTHandle destTexture)
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{
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CoreUtils.SetRenderTarget(cmd, destTexture, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.DontCare, ClearFlag.None, Color.clear);
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Vector4 debugParameters = new Vector4(ShaderConstants._SizeOfHDRXYMapping, ShaderConstants._SizeOfHDRXYMapping, 0, 0);
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cmd.SetRandomWriteTarget(ShaderConstants._CIExyUAVIndex, xyTarget);
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data.material.SetVector(ShaderConstants._HDRDebugParamsId, debugParameters);
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data.material.SetVector(ShaderPropertyId.hdrOutputLuminanceParams, data.luminanceParameters);
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Vector2 viewportScale = sourceTexture.useScaling ? new Vector2(sourceTexture.rtHandleProperties.rtHandleScale.x, sourceTexture.rtHandleProperties.rtHandleScale.y) : Vector2.one;
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Blitter.BlitTexture(cmd, sourceTexture, viewportScale, data.material, 0);
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cmd.ClearRandomWriteTargets();
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}
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private static void ExecuteHDRDebugViewFinalPass(RasterCommandBuffer cmd, PassDataDebugView data, RTHandle sourceTexture, RTHandle destination, RTHandle xyTarget)
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{
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if (data.cameraData.isHDROutputActive)
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{
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HDROutputUtils.ConfigureHDROutput(data.material, data.cameraData.hdrDisplayColorGamut, HDROutputUtils.Operation.ColorEncoding);
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CoreUtils.SetKeyword(data.material, ShaderKeywordStrings.HDROverlay, data.cameraData.rendersOverlayUI);
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}
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data.material.SetTexture(ShaderConstants._xyTextureId, xyTarget);
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Vector4 debugParameters = new Vector4(ShaderConstants._SizeOfHDRXYMapping, ShaderConstants._SizeOfHDRXYMapping, 0, 0);
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data.material.SetVector(ShaderConstants._HDRDebugParamsId, debugParameters);
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data.material.SetVector(ShaderPropertyId.hdrOutputLuminanceParams, data.luminanceParameters);
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data.material.SetInteger(ShaderConstants._DebugHDRModeId, (int)data.hdrDebugMode);
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Vector4 scaleBias = RenderingUtils.GetFinalBlitScaleBias(sourceTexture, destination, data.cameraData);
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RenderTargetIdentifier cameraTarget = BuiltinRenderTextureType.CameraTarget;
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#if ENABLE_VR && ENABLE_XR_MODULE
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if (data.cameraData.xr.enabled)
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cameraTarget = data.cameraData.xr.renderTarget;
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#endif
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if (destination.nameID == cameraTarget || data.cameraData.targetTexture != null)
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cmd.SetViewport(data.cameraData.pixelRect);
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Blitter.BlitTexture(cmd, sourceTexture, scaleBias, data.material, 1);
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}
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// Non-RenderGraph path
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public void Dispose()
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{
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m_CIExyTarget?.Release();
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m_PassthroughRT?.Release();
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}
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/// <summary>
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/// Configure the pass
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/// </summary>
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/// <param name="cameraData">Descriptor for the color buffer.</param>
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/// <param name="hdrdebugMode">Active DebugMode for HDR.</param>
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public void Setup(UniversalCameraData cameraData, HDRDebugMode hdrdebugMode)
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{
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m_PassDataDebugView.hdrDebugMode = hdrdebugMode;
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RenderTextureDescriptor descriptor = cameraData.cameraTargetDescriptor;
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DebugHandler.ConfigureColorDescriptorForDebugScreen(ref descriptor, cameraData.pixelWidth, cameraData.pixelHeight);
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RenderingUtils.ReAllocateHandleIfNeeded(ref m_PassthroughRT, descriptor, name: "_HDRDebugDummyRT");
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RenderTextureDescriptor descriptorCIE = cameraData.cameraTargetDescriptor;
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HDRDebugViewPass.ConfigureDescriptorForCIEPrepass(ref descriptorCIE);
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RenderingUtils.ReAllocateHandleIfNeeded(ref m_CIExyTarget, descriptorCIE, name: "_xyBuffer");
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}
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/// <inheritdoc/>
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[Obsolete(DeprecationMessage.CompatibilityScriptingAPIObsolete, false)]
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public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
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{
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UniversalCameraData cameraData = renderingData.frameData.Get<UniversalCameraData>();
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var cmd = renderingData.commandBuffer;
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m_PassDataCIExy.luminanceParameters = m_PassDataDebugView.luminanceParameters = GetLuminanceParameters(cameraData);
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m_PassDataDebugView.cameraData = cameraData;
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var sourceTexture = renderingData.cameraData.renderer.cameraColorTargetHandle;
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var cameraTarget = RenderingUtils.GetCameraTargetIdentifier(ref renderingData);
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// Get RTHandle alias to use RTHandle apis
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RTHandleStaticHelpers.SetRTHandleStaticWrapper(cameraTarget);
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var cameraTargetHandle = RTHandleStaticHelpers.s_RTHandleWrapper;
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m_material.enabledKeywords = null;
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GetActiveDebugHandler(cameraData)?.UpdateShaderGlobalPropertiesForFinalValidationPass(cmd, cameraData, true);
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CoreUtils.SetRenderTarget(cmd, m_CIExyTarget, ClearFlag.Color, Color.clear);
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ExecutePass(cmd, m_PassDataCIExy, m_PassDataDebugView, sourceTexture, m_CIExyTarget, cameraTargetHandle);
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}
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private void ExecutePass(CommandBuffer cmd, PassDataCIExy dataCIExy, PassDataDebugView dataDebugView, RTHandle sourceTexture, RTHandle xyTarget, RTHandle destTexture)
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{
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RasterCommandBuffer rasterCmd = CommandBufferHelpers.GetRasterCommandBuffer(cmd);
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//CIExyPrepass
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bool requiresCIExyData = dataDebugView.hdrDebugMode != HDRDebugMode.ValuesAbovePaperWhite;
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if (requiresCIExyData)
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{
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using (new ProfilingScope(cmd, profilingSampler))
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{
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ExecuteCIExyPrepass(cmd, dataCIExy, sourceTexture, xyTarget, m_PassthroughRT);
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}
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}
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//HDR DebugView - should always be the last stack of the camera
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CoreUtils.SetRenderTarget(cmd, destTexture, RenderBufferLoadAction.DontCare, RenderBufferStoreAction.Store, ClearFlag.None, Color.clear);
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using (new ProfilingScope(cmd, profilingSampler))
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{
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ExecuteHDRDebugViewFinalPass(rasterCmd, dataDebugView, sourceTexture, destTexture, xyTarget);
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}
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// Disable obsolete warning for internal usage
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#pragma warning disable CS0618
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dataDebugView.cameraData.renderer.ConfigureCameraTarget(destTexture, destTexture);
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#pragma warning restore CS0618
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}
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//RenderGraph path
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internal void RenderHDRDebug(RenderGraph renderGraph, UniversalCameraData cameraData, TextureHandle srcColor, TextureHandle overlayUITexture, TextureHandle dstColor, HDRDebugMode hdrDebugMode)
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{
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bool requiresCIExyData = hdrDebugMode != HDRDebugMode.ValuesAbovePaperWhite;
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Vector4 luminanceParameters = GetLuminanceParameters(cameraData);
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TextureHandle intermediateRT = srcColor;
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TextureHandle xyBuffer = TextureHandle.nullHandle;
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if (requiresCIExyData)
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{
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RenderTextureDescriptor descriptor = cameraData.cameraTargetDescriptor;
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DebugHandler.ConfigureColorDescriptorForDebugScreen(ref descriptor, cameraData.pixelWidth, cameraData.pixelHeight);
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intermediateRT = UniversalRenderer.CreateRenderGraphTexture(renderGraph, descriptor, "_HDRDebugDummyRT", false);
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ConfigureDescriptorForCIEPrepass(ref descriptor);
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xyBuffer = UniversalRenderer.CreateRenderGraphTexture(renderGraph, descriptor, "_xyBuffer", true);
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// Using low level pass because of random UAV support, and since this is a debug view, we don't care much about merging passes or optimizing for TBDR.
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// This could be a compute pass (like in HDRP) but doing it in pixel is compatible with devices that might support HDR output but not compute shaders.
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using (var builder = renderGraph.AddUnsafePass<PassDataCIExy>("Blit HDR DebugView CIExy", out var passData, profilingSampler))
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{
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passData.material = m_material;
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passData.luminanceParameters = luminanceParameters;
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passData.srcColor = srcColor;
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builder.UseTexture(srcColor);
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passData.xyBuffer = xyBuffer;
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builder.UseTexture(xyBuffer, AccessFlags.Write);
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passData.passThrough = intermediateRT;
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builder.UseTexture(intermediateRT, AccessFlags.Write);
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builder.SetRenderFunc((PassDataCIExy data, UnsafeGraphContext context) =>
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{
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ExecuteCIExyPrepass(CommandBufferHelpers.GetNativeCommandBuffer(context.cmd), data, data.srcColor, data.xyBuffer, data.passThrough);
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});
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}
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}
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using (var builder = renderGraph.AddRasterRenderPass<PassDataDebugView>("Blit HDR DebugView", out var passData, profilingSampler))
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{
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passData.material = m_material;
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passData.hdrDebugMode = hdrDebugMode;
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passData.luminanceParameters = luminanceParameters;
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passData.cameraData = cameraData;
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if (requiresCIExyData)
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{
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passData.xyBuffer = xyBuffer;
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builder.UseTexture(xyBuffer);
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}
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passData.srcColor = srcColor;
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builder.UseTexture(srcColor);
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passData.dstColor = dstColor;
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builder.SetRenderAttachment(dstColor, 0, AccessFlags.WriteAll);
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if (overlayUITexture.IsValid())
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{
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passData.overlayUITexture = overlayUITexture;
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builder.UseTexture(overlayUITexture);
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}
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builder.SetRenderFunc((PassDataDebugView data, RasterGraphContext context) =>
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{
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data.material.enabledKeywords = null;
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ExecuteHDRDebugViewFinalPass(context.cmd, data, data.srcColor, data.dstColor, data.xyBuffer);
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});
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}
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}
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internal class ShaderConstants
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{
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public static readonly int _DebugHDRModeId = Shader.PropertyToID("_DebugHDRMode");
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public static readonly int _HDRDebugParamsId = Shader.PropertyToID("_HDRDebugParams");
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public static readonly int _xyTextureId = Shader.PropertyToID("_xyBuffer");
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public static readonly int _SizeOfHDRXYMapping = 512;
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public static readonly int _CIExyUAVIndex = 1;
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}
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}
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}
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