98 lines
3.8 KiB
C#
98 lines
3.8 KiB
C#
using System;
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using UnityEngine.Rendering.RenderGraphModule;
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using System.Runtime.CompilerServices; // AggressiveInlining
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namespace UnityEngine.Rendering.Universal
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{
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internal sealed class Fsr1UpscalePostProcessPass : PostProcessPass
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{
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public const string k_TargetName = "CameraColorUpscaled";
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Material m_Material;
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bool m_IsValid;
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TextureDesc m_UpscaledDesc;
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public Fsr1UpscalePostProcessPass(Shader shader)
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{
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this.renderPassEvent = RenderPassEvent.AfterRenderingPostProcessing - 1;
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this.profilingSampler = new ProfilingSampler("Blit FSR Upscaling");
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m_Material = PostProcessUtils.LoadShader(shader, passName);
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m_IsValid = m_Material != null;
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}
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public override void Dispose()
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{
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CoreUtils.Destroy(m_Material);
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m_IsValid = false;
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}
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private class PostProcessingFinalFSRScalePassData
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{
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internal Material material;
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internal TextureHandle sourceTexture;
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internal Vector2 fsrInputSize;
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internal Vector2 fsrOutputSize;
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internal bool enableAlphaOutput;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void Setup(TextureDesc upscaledDesc)
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{
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m_UpscaledDesc = upscaledDesc;
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}
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public override void RecordRenderGraph(RenderGraph renderGraph, ContextContainer frameData)
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{
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if (!m_IsValid)
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return;
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var cameraData = frameData.Get<UniversalCameraData>();
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var resourceData = frameData.Get<UniversalResourceData>();
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var sourceTexture = resourceData.cameraColor;
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var srcDesc = renderGraph.GetTextureDesc(sourceTexture);
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var destinationTexture = PostProcessUtils.CreateCompatibleTexture(renderGraph, m_UpscaledDesc, k_TargetName, true, FilterMode.Point);
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var dstDesc = renderGraph.GetTextureDesc(destinationTexture);
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// FSR upscale
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using (var builder = renderGraph.AddRasterRenderPass<PostProcessingFinalFSRScalePassData>(passName, out var passData, profilingSampler))
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{
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builder.AllowGlobalStateModification(true);
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builder.SetRenderAttachment(destinationTexture, 0, AccessFlags.Write);
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passData.sourceTexture = sourceTexture;
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builder.UseTexture(sourceTexture, AccessFlags.Read);
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passData.material = m_Material;
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passData.fsrInputSize = new Vector2(srcDesc.width, srcDesc.height);
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passData.fsrOutputSize = new Vector2(dstDesc.width, dstDesc.height);
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passData.enableAlphaOutput = cameraData.isAlphaOutputEnabled;
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builder.SetRenderFunc(static (PostProcessingFinalFSRScalePassData data, RasterGraphContext context) =>
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{
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var material = data.material;
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RTHandle sourceHdl = (RTHandle)data.sourceTexture;
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// TODO: Fsr uses global state constants.
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FSRUtils.SetEasuConstants(context.cmd, data.fsrInputSize, data.fsrInputSize, data.fsrOutputSize);
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material.shaderKeywords = null;
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CoreUtils.SetKeyword(material, ShaderKeywordStrings._ENABLE_ALPHA_OUTPUT, data.enableAlphaOutput);
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Vector2 viewportScale = sourceHdl.useScaling ? new Vector2(sourceHdl.rtHandleProperties.rtHandleScale.x, sourceHdl.rtHandleProperties.rtHandleScale.y) : Vector2.one;
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Blitter.BlitTexture(context.cmd, data.sourceTexture, viewportScale, material, 0);
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});
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}
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resourceData.cameraColor = destinationTexture;
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}
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// Precomputed shader ids to same some CPU cycles (mostly affects mobile)
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public static class ShaderConstants
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{
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}
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}
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}
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