forked from BilalY/Rasagar
327 lines
15 KiB
C#
327 lines
15 KiB
C#
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using System;
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using System.Collections.Generic;
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using UnityEngine.Experimental.Rendering;
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using UnityEngine.Rendering.RenderGraphModule;
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using UnityEngine.Rendering.Universal.Internal;
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namespace UnityEngine.Rendering.Universal
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{
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internal class DecalDrawDBufferSystem : DecalDrawSystem
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{
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public DecalDrawDBufferSystem(DecalEntityManager entityManager) : base("DecalDrawIntoDBufferSystem.Execute", entityManager) { }
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protected override int GetPassIndex(DecalCachedChunk decalCachedChunk) => decalCachedChunk.passIndexDBuffer;
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}
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internal class DBufferRenderPass : ScriptableRenderPass
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{
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internal static string[] s_DBufferNames = { "_DBufferTexture0", "_DBufferTexture1", "_DBufferTexture2", "_DBufferTexture3" };
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internal static string s_DBufferDepthName = "DBufferDepth";
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static readonly int s_SSAOTextureID = Shader.PropertyToID("_ScreenSpaceOcclusionTexture");
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private DecalDrawDBufferSystem m_DrawSystem;
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private DBufferSettings m_Settings;
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private Material m_DBufferClear;
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private FilteringSettings m_FilteringSettings;
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private List<ShaderTagId> m_ShaderTagIdList;
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private ProfilingSampler m_DBufferClearSampler;
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private bool m_DecalLayers;
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private RTHandle m_DBufferDepth;
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private PassData m_PassData;
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internal RTHandle[] dBufferColorHandles { get; private set; }
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internal RTHandle depthHandle { get; private set; }
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internal RTHandle dBufferDepth { get => m_DBufferDepth; }
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private TextureHandle[] dbufferHandles;
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public DBufferRenderPass(Material dBufferClear, DBufferSettings settings, DecalDrawDBufferSystem drawSystem, bool decalLayers)
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{
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renderPassEvent = RenderPassEvent.AfterRenderingPrePasses + 1;
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var scriptableRenderPassInput = ScriptableRenderPassInput.Normal;
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ConfigureInput(scriptableRenderPassInput);
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m_DrawSystem = drawSystem;
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m_Settings = settings;
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m_DBufferClear = dBufferClear;
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profilingSampler = new ProfilingSampler("Draw DBuffer");
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m_DBufferClearSampler = new ProfilingSampler("Clear");
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m_FilteringSettings = new FilteringSettings(RenderQueueRange.opaque, -1);
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m_DecalLayers = decalLayers;
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m_ShaderTagIdList = new List<ShaderTagId>();
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m_ShaderTagIdList.Add(new ShaderTagId(DecalShaderPassNames.DBufferMesh));
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m_ShaderTagIdList.Add(new ShaderTagId(DecalShaderPassNames.DBufferProjectorVFX));
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int dBufferCount = (int)settings.surfaceData + 1;
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dBufferColorHandles = new RTHandle[dBufferCount];
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m_PassData = new PassData();
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}
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public void Dispose()
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{
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m_DBufferDepth?.Release();
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foreach (var handle in dBufferColorHandles)
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handle?.Release();
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}
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public void Setup(in CameraData cameraData)
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{
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var depthDesc = cameraData.cameraTargetDescriptor;
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depthDesc.graphicsFormat = GraphicsFormat.None; //Depth only rendering
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depthDesc.depthStencilFormat = cameraData.cameraTargetDescriptor.depthStencilFormat;
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depthDesc.msaaSamples = 1;
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RenderingUtils.ReAllocateHandleIfNeeded(ref m_DBufferDepth, depthDesc, name: s_DBufferDepthName);
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Setup(cameraData, m_DBufferDepth);
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}
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public void Setup(in CameraData cameraData, RTHandle depthTextureHandle)
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{
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// base
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{
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var desc = cameraData.cameraTargetDescriptor;
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desc.graphicsFormat = QualitySettings.activeColorSpace == ColorSpace.Linear ? GraphicsFormat.R8G8B8A8_SRGB : GraphicsFormat.R8G8B8A8_UNorm;
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desc.depthBufferBits = 0;
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desc.msaaSamples = 1;
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RenderingUtils.ReAllocateHandleIfNeeded(ref dBufferColorHandles[0], desc, name: s_DBufferNames[0]);
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}
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if (m_Settings.surfaceData == DecalSurfaceData.AlbedoNormal || m_Settings.surfaceData == DecalSurfaceData.AlbedoNormalMAOS)
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{
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var desc = cameraData.cameraTargetDescriptor;
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desc.graphicsFormat = GraphicsFormat.R8G8B8A8_UNorm;
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desc.depthBufferBits = 0;
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desc.msaaSamples = 1;
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RenderingUtils.ReAllocateHandleIfNeeded(ref dBufferColorHandles[1], desc, name: s_DBufferNames[1]);
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}
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if (m_Settings.surfaceData == DecalSurfaceData.AlbedoNormalMAOS)
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{
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var desc = cameraData.cameraTargetDescriptor;
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desc.graphicsFormat = GraphicsFormat.R8G8B8A8_UNorm;
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desc.depthBufferBits = 0;
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desc.msaaSamples = 1;
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RenderingUtils.ReAllocateHandleIfNeeded(ref dBufferColorHandles[2], desc, name: s_DBufferNames[2]);
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}
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// depth
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depthHandle = depthTextureHandle;
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}
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[Obsolete(DeprecationMessage.CompatibilityScriptingAPIObsolete, false)]
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public override void OnCameraSetup(CommandBuffer cmd, ref RenderingData renderingData)
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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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ConfigureTarget(dBufferColorHandles, depthHandle);
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#pragma warning restore CS0618
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}
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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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InitPassData(ref m_PassData);
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var cmd = renderingData.commandBuffer;
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var passData = m_PassData;
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using (new ProfilingScope(cmd, profilingSampler))
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{
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context.ExecuteCommandBuffer(cmd);
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cmd.Clear();
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SetGlobalTextures(renderingData.commandBuffer, m_PassData);
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SetKeywords(CommandBufferHelpers.GetRasterCommandBuffer(renderingData.commandBuffer), m_PassData);
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Clear(renderingData.commandBuffer, m_PassData);
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UniversalRenderingData universalRenderingData = renderingData.frameData.Get<UniversalRenderingData>();
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UniversalCameraData cameraData = renderingData.frameData.Get<UniversalCameraData>();
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UniversalLightData lightData = renderingData.frameData.Get<UniversalLightData>();
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var param = InitRendererListParams(universalRenderingData, cameraData, lightData);
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var rendererList = context.CreateRendererList(ref param);
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ExecutePass(CommandBufferHelpers.GetRasterCommandBuffer(renderingData.commandBuffer), m_PassData, rendererList, false);
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}
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}
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private static void ExecutePass(RasterCommandBuffer cmd, PassData passData, RendererList rendererList, bool renderGraph)
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{
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passData.drawSystem.Execute(cmd);
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cmd.DrawRendererList(rendererList);
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}
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private static void SetGlobalTextures(CommandBuffer cmd, PassData passData)
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{
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var dBufferColorHandles = passData.dBufferColorHandles;
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cmd.SetGlobalTexture(dBufferColorHandles[0].name, dBufferColorHandles[0].nameID);
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if (passData.settings.surfaceData == DecalSurfaceData.AlbedoNormal || passData.settings.surfaceData == DecalSurfaceData.AlbedoNormalMAOS)
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cmd.SetGlobalTexture(dBufferColorHandles[1].name, dBufferColorHandles[1].nameID);
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if (passData.settings.surfaceData == DecalSurfaceData.AlbedoNormalMAOS)
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cmd.SetGlobalTexture(dBufferColorHandles[2].name, dBufferColorHandles[2].nameID);
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}
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private static void SetKeywords(RasterCommandBuffer cmd, PassData passData)
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{
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cmd.SetKeyword(ShaderGlobalKeywords.DBufferMRT1, passData.settings.surfaceData == DecalSurfaceData.Albedo);
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cmd.SetKeyword(ShaderGlobalKeywords.DBufferMRT2, passData.settings.surfaceData == DecalSurfaceData.AlbedoNormal);
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cmd.SetKeyword(ShaderGlobalKeywords.DBufferMRT3, passData.settings.surfaceData == DecalSurfaceData.AlbedoNormalMAOS);
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cmd.SetKeyword(ShaderGlobalKeywords.DecalLayers, passData.decalLayers);
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}
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private static void Clear(CommandBuffer cmd, PassData passData)
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{
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// TODO: This should be replace with mrt clear once we support it
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// Clear render targets
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using (new ProfilingScope(cmd, passData.dBufferClearSampler))
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{
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// for alpha compositing, color is cleared to 0, alpha to 1
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// https://developer.nvidia.com/gpugems/GPUGems3/gpugems3_ch23.html
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Blitter.BlitTexture(cmd, passData.dBufferColorHandles[0], new Vector4(1, 1, 0, 0), passData.dBufferClear, 0);
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}
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}
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private class PassData
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{
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internal DecalDrawDBufferSystem drawSystem;
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internal DBufferSettings settings;
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internal Material dBufferClear;
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internal ProfilingSampler dBufferClearSampler;
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internal bool decalLayers;
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internal RTHandle dBufferDepth;
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internal RTHandle[] dBufferColorHandles;
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internal RendererListHandle rendererList;
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}
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private void InitPassData(ref PassData passData)
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{
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passData.drawSystem = m_DrawSystem;
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passData.settings = m_Settings;
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passData.dBufferClear = m_DBufferClear;
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passData.dBufferClearSampler = m_DBufferClearSampler;
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passData.decalLayers = m_DecalLayers;
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passData.dBufferDepth = m_DBufferDepth;
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passData.dBufferColorHandles = dBufferColorHandles;
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}
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private RendererListParams InitRendererListParams(UniversalRenderingData renderingData, UniversalCameraData cameraData, UniversalLightData lightData)
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{
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SortingCriteria sortingCriteria = cameraData.defaultOpaqueSortFlags;
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DrawingSettings drawingSettings = RenderingUtils.CreateDrawingSettings(m_ShaderTagIdList, renderingData, cameraData, lightData, sortingCriteria);
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return new RendererListParams(renderingData.cullResults, drawingSettings, m_FilteringSettings);
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}
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public override void RecordRenderGraph(RenderGraph renderGraph, ContextContainer frameData)
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{
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UniversalResourceData resourceData = frameData.Get<UniversalResourceData>();
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UniversalRenderingData renderingData = frameData.Get<UniversalRenderingData>();
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UniversalCameraData cameraData = frameData.Get<UniversalCameraData>();
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UniversalLightData lightData = frameData.Get<UniversalLightData>();
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UniversalRenderer renderer = (UniversalRenderer)cameraData.renderer;
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TextureHandle cameraDepthTexture = resourceData.cameraDepthTexture;
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TextureHandle cameraNormalsTexture = resourceData.cameraNormalsTexture;
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TextureHandle depthTarget = renderer.renderingModeActual == RenderingMode.Deferred ? resourceData.activeDepthTexture :
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(cameraData.cameraTargetDescriptor.msaaSamples > 1 ? resourceData.dBufferDepth : resourceData.activeDepthTexture);
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using (var builder = renderGraph.AddRasterRenderPass<PassData>(passName, out var passData, profilingSampler))
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{
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InitPassData(ref passData);
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if (dbufferHandles == null)
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dbufferHandles = new TextureHandle[RenderGraphUtils.DBufferSize];
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// base
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{
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var desc = cameraData.cameraTargetDescriptor;
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desc.graphicsFormat = QualitySettings.activeColorSpace == ColorSpace.Linear ? GraphicsFormat.R8G8B8A8_SRGB : GraphicsFormat.R8G8B8A8_UNorm;
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desc.depthBufferBits = 0;
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desc.msaaSamples = 1;
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dbufferHandles[0] = UniversalRenderer.CreateRenderGraphTexture(renderGraph, desc, s_DBufferNames[0], true, new Color(0, 0, 0, 1));
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builder.SetRenderAttachment(dbufferHandles[0], 0, AccessFlags.Write);
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}
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if (m_Settings.surfaceData == DecalSurfaceData.AlbedoNormal || m_Settings.surfaceData == DecalSurfaceData.AlbedoNormalMAOS)
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{
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var desc = cameraData.cameraTargetDescriptor;
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desc.graphicsFormat = GraphicsFormat.R8G8B8A8_UNorm;
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desc.depthBufferBits = 0;
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desc.msaaSamples = 1;
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dbufferHandles[1] = UniversalRenderer.CreateRenderGraphTexture(renderGraph, desc, s_DBufferNames[1], true, new Color(0.5f, 0.5f, 0.5f, 1));
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builder.SetRenderAttachment(dbufferHandles[1], 1, AccessFlags.Write);
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}
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if (m_Settings.surfaceData == DecalSurfaceData.AlbedoNormalMAOS)
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{
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var desc = cameraData.cameraTargetDescriptor;
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desc.graphicsFormat = GraphicsFormat.R8G8B8A8_UNorm;
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desc.depthBufferBits = 0;
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desc.msaaSamples = 1;
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dbufferHandles[2] = UniversalRenderer.CreateRenderGraphTexture(renderGraph, desc, s_DBufferNames[2], true, new Color(0, 0, 0, 1));
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builder.SetRenderAttachment(dbufferHandles[2], 2, AccessFlags.Write);
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}
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builder.SetRenderAttachmentDepth(depthTarget, AccessFlags.Write);
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if (cameraData.cameraTargetDescriptor.msaaSamples > 1)
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builder.SetGlobalTextureAfterPass(depthTarget, Shader.PropertyToID("_CameraDepthTexture"));
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if (cameraDepthTexture.IsValid())
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builder.UseTexture(cameraDepthTexture, AccessFlags.Read);
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if (cameraNormalsTexture.IsValid())
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builder.UseTexture(cameraNormalsTexture, AccessFlags.Read);
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if (resourceData.ssaoTexture.IsValid())
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builder.UseGlobalTexture(s_SSAOTextureID);
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var param = InitRendererListParams(renderingData, cameraData, lightData);
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passData.rendererList = renderGraph.CreateRendererList(param);
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builder.UseRendererList(passData.rendererList);
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for (int i = 0; i < RenderGraphUtils.DBufferSize; ++i)
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{
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if (dbufferHandles[i].IsValid())
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builder.SetGlobalTextureAfterPass(dbufferHandles[i], Shader.PropertyToID(s_DBufferNames[i]));
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}
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builder.AllowPassCulling(false);
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builder.AllowGlobalStateModification(true);
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builder.SetRenderFunc((PassData data, RasterGraphContext rgContext) =>
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{
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SetKeywords(rgContext.cmd, data);
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ExecutePass(rgContext.cmd, data, data.rendererList, true);
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});
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}
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resourceData.dBuffer = dbufferHandles;
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}
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public override void OnCameraCleanup(CommandBuffer cmd)
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{
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if (cmd == null)
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{
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throw new System.ArgumentNullException("cmd");
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}
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cmd.SetKeyword(ShaderGlobalKeywords.DBufferMRT1, false);
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cmd.SetKeyword(ShaderGlobalKeywords.DBufferMRT2, false);
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cmd.SetKeyword(ShaderGlobalKeywords.DBufferMRT3, false);
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cmd.SetKeyword(ShaderGlobalKeywords.DecalLayers, false);
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}
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}
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}
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