forked from BilalY/Rasagar
397 lines
17 KiB
C#
397 lines
17 KiB
C#
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using System;
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using System.Collections.Generic;
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using UnityEngine.Assertions;
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using Unity.Collections;
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using Unity.Collections.LowLevel.Unsafe;
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using Unity.Jobs;
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using Unity.Mathematics;
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using Unity.Burst;
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using UnityEngine.Jobs;
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using UnityEngine.Profiling;
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namespace UnityEngine.Rendering
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{
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internal struct RenderersBatchersContextDesc
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{
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public InstanceNumInfo instanceNumInfo;
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public bool supportDitheringCrossFade;
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public bool enableBoundingSpheresInstanceData;
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public float smallMeshScreenPercentage;
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public bool enableCullerDebugStats;
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public static RenderersBatchersContextDesc NewDefault()
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{
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return new RenderersBatchersContextDesc()
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{
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instanceNumInfo = new InstanceNumInfo(meshRendererNum: 1024, speedTreeNum: 32),
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};
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}
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}
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internal class RenderersBatchersContext : IDisposable
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{
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public RenderersParameters renderersParameters { get { return m_RenderersParameters; } }
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public GraphicsBuffer gpuInstanceDataBuffer { get { return m_InstanceDataBuffer.gpuBuffer; } }
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public int activeLodGroupCount { get { return m_LODGroupDataPool.activeLodGroupCount; } }
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public NativeArray<GPUInstanceComponentDesc>.ReadOnly defaultDescriptions { get { return m_InstanceDataBuffer.descriptions.AsReadOnly(); } }
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public NativeArray<MetadataValue> defaultMetadata { get { return m_InstanceDataBuffer.defaultMetadata; } }
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public NativeList<LODGroupCullingData> lodGroupCullingData { get { return m_LODGroupDataPool.lodGroupCullingData; } }
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public int instanceDataBufferVersion { get { return m_InstanceDataBuffer.version; } }
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public int instanceDataBufferLayoutVersion { get { return m_InstanceDataBuffer.layoutVersion; } }
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public int crossfadedRendererCount { get { return m_LODGroupDataPool.crossfadedRendererCount; } }
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public SphericalHarmonicsL2 cachedAmbientProbe { get { return m_CachedAmbientProbe; } }
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public bool hasBoundingSpheres { get { return m_InstanceDataSystem.hasBoundingSpheres; } }
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public CPUInstanceData.ReadOnly instanceData { get { return m_InstanceDataSystem.instanceData; } }
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public CPUSharedInstanceData.ReadOnly sharedInstanceData { get { return m_InstanceDataSystem.sharedInstanceData; } }
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public GPUInstanceDataBuffer.ReadOnly instanceDataBuffer { get { return m_InstanceDataBuffer.AsReadOnly(); } }
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public NativeArray<InstanceHandle> aliveInstances { get { return m_InstanceDataSystem.aliveInstances; } }
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public float smallMeshScreenPercentage { get { return m_SmallMeshScreenPercentage; } }
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private InstanceDataSystem m_InstanceDataSystem;
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public GPUResidentDrawerResources resources { get { return m_Resources; } }
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private GPUResidentDrawerResources m_Resources;
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private GPUDrivenProcessor m_GPUDrivenProcessor;
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private LODGroupDataPool m_LODGroupDataPool;
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internal GPUInstanceDataBuffer m_InstanceDataBuffer;
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private RenderersParameters m_RenderersParameters;
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private GPUInstanceDataBufferUploader.GPUResources m_UploadResources;
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private GPUInstanceDataBufferGrower.GPUResources m_GrowerResources;
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internal CommandBuffer m_CmdBuffer;
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private SphericalHarmonicsL2 m_CachedAmbientProbe;
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private float m_SmallMeshScreenPercentage;
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private GPUDrivenLODGroupDataCallback m_UpdateLODGroupCallback;
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private GPUDrivenLODGroupDataCallback m_TransformLODGroupCallback;
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private OcclusionCullingCommon m_OcclusionCullingCommon;
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private DebugRendererBatcherStats m_DebugStats;
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internal OcclusionCullingCommon occlusionCullingCommon { get => m_OcclusionCullingCommon; }
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internal DebugRendererBatcherStats debugStats { get => m_DebugStats; }
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public RenderersBatchersContext(in RenderersBatchersContextDesc desc, GPUDrivenProcessor gpuDrivenProcessor, GPUResidentDrawerResources resources)
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{
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m_Resources = resources;
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m_GPUDrivenProcessor = gpuDrivenProcessor;
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RenderersParameters.Flags rendererParametersFlags = RenderersParameters.Flags.None;
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if (desc.enableBoundingSpheresInstanceData)
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rendererParametersFlags |= RenderersParameters.Flags.UseBoundingSphereParameter;
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m_InstanceDataBuffer = RenderersParameters.CreateInstanceDataBuffer(rendererParametersFlags, desc.instanceNumInfo);
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m_RenderersParameters = new RenderersParameters(m_InstanceDataBuffer);
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m_LODGroupDataPool = new LODGroupDataPool(resources, desc.instanceNumInfo.GetInstanceNum(InstanceType.MeshRenderer), desc.supportDitheringCrossFade);
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m_UploadResources = new GPUInstanceDataBufferUploader.GPUResources();
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m_UploadResources.LoadShaders(resources);
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m_GrowerResources = new GPUInstanceDataBufferGrower.GPUResources();
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m_GrowerResources.LoadShaders(resources);
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m_CmdBuffer = new CommandBuffer();
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m_CmdBuffer.name = "GPUCullingCommands";
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m_CachedAmbientProbe = RenderSettings.ambientProbe;
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m_InstanceDataSystem = new InstanceDataSystem(desc.instanceNumInfo.GetTotalInstanceNum(), desc.enableBoundingSpheresInstanceData, resources);
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m_SmallMeshScreenPercentage = desc.smallMeshScreenPercentage;
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m_UpdateLODGroupCallback = UpdateLODGroupData;
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m_TransformLODGroupCallback = TransformLODGroupData;
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m_OcclusionCullingCommon = new OcclusionCullingCommon();
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m_OcclusionCullingCommon.Init(resources);
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m_DebugStats = desc.enableCullerDebugStats ? new DebugRendererBatcherStats() : null;
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}
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public void Dispose()
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{
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NativeArray<int>.ReadOnly rendererGroupIDs = m_InstanceDataSystem.sharedInstanceData.rendererGroupIDs;
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if (rendererGroupIDs.Length > 0)
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m_GPUDrivenProcessor.DisableGPUDrivenRendering(rendererGroupIDs);
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m_InstanceDataSystem.Dispose();
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m_CmdBuffer.Release();
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m_GrowerResources.Dispose();
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m_UploadResources.Dispose();
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m_LODGroupDataPool.Dispose();
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m_InstanceDataBuffer.Dispose();
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m_UpdateLODGroupCallback = null;
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m_TransformLODGroupCallback = null;
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m_DebugStats?.Dispose();
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m_DebugStats = null;
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m_OcclusionCullingCommon?.Dispose();
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m_OcclusionCullingCommon = null;
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}
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public int GetMaxInstancesOfType(InstanceType instanceType)
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{
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return m_InstanceDataSystem.GetMaxInstancesOfType(instanceType);
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}
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public int GetAliveInstancesOfType(InstanceType instanceType)
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{
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return m_InstanceDataSystem.GetAliveInstancesOfType(instanceType);
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}
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public void GrowInstanceBuffer(in InstanceNumInfo instanceNumInfo)
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{
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using (var grower = new GPUInstanceDataBufferGrower(m_InstanceDataBuffer, instanceNumInfo))
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{
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var newInstanceDataBuffer = grower.SubmitToGpu(ref m_GrowerResources);
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if (newInstanceDataBuffer != m_InstanceDataBuffer)
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{
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if (m_InstanceDataBuffer != null)
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m_InstanceDataBuffer.Dispose();
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m_InstanceDataBuffer = newInstanceDataBuffer;
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}
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}
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m_RenderersParameters = new RenderersParameters(m_InstanceDataBuffer);
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}
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private void EnsureInstanceBufferCapacity()
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{
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const int kMeshRendererGrowNum = 1024;
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const int kSpeedTreeGrowNum = 256;
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int maxCPUMeshRendererNum = m_InstanceDataSystem.GetMaxInstancesOfType(InstanceType.MeshRenderer);
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int maxCPUSpeedTreeNum = m_InstanceDataSystem.GetMaxInstancesOfType(InstanceType.SpeedTree);
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int maxGPUMeshRendererInstances = m_InstanceDataBuffer.instanceNumInfo.GetInstanceNum(InstanceType.MeshRenderer);
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int maxGPUSpeedTreeInstances = m_InstanceDataBuffer.instanceNumInfo.GetInstanceNum(InstanceType.SpeedTree);
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bool needToGrow = false;
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if(maxCPUMeshRendererNum > maxGPUMeshRendererInstances)
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{
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needToGrow = true;
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maxGPUMeshRendererInstances = maxCPUMeshRendererNum + kMeshRendererGrowNum;
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}
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if(maxCPUSpeedTreeNum > maxGPUSpeedTreeInstances)
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{
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needToGrow = true;
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maxGPUSpeedTreeInstances = maxCPUSpeedTreeNum + kSpeedTreeGrowNum;
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}
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if (needToGrow)
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GrowInstanceBuffer(new InstanceNumInfo(meshRendererNum: maxGPUMeshRendererInstances, speedTreeNum: maxGPUSpeedTreeInstances));
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}
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private void UpdateLODGroupData(in GPUDrivenLODGroupData lodGroupData)
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{
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Profiler.BeginSample("Convert LODGroups To BRG");
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m_LODGroupDataPool.UpdateLODGroupData(lodGroupData);
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Profiler.EndSample();
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}
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private void TransformLODGroupData(in GPUDrivenLODGroupData lodGroupData)
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{
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Profiler.BeginSample("Transform LODGroups");
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m_LODGroupDataPool.UpdateLODGroupTransformData(lodGroupData);
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Profiler.EndSample();
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}
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public void DestroyLODGroups(NativeArray<int> destroyed)
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{
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if (destroyed.Length == 0)
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return;
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m_LODGroupDataPool.FreeLODGroupData(destroyed);
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}
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public void UpdateLODGroups(NativeArray<int> changedID)
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{
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if (changedID.Length == 0)
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return;
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m_GPUDrivenProcessor.DispatchLODGroupData(changedID, m_UpdateLODGroupCallback);
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}
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public void ReallocateAndGetInstances(in GPUDrivenRendererGroupData rendererData, NativeArray<InstanceHandle> instances)
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{
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m_InstanceDataSystem.ReallocateAndGetInstances(rendererData, instances);
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EnsureInstanceBufferCapacity();
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}
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public JobHandle ScheduleUpdateInstanceDataJob(NativeArray<InstanceHandle> instances, in GPUDrivenRendererGroupData rendererData)
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{
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return m_InstanceDataSystem.ScheduleUpdateInstanceDataJob(instances, rendererData, m_LODGroupDataPool.lodGroupDataHash);
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}
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public void FreeRendererGroupInstances(NativeArray<int> rendererGroupsID)
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{
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m_InstanceDataSystem.FreeRendererGroupInstances(rendererGroupsID);
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}
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public void FreeInstances(NativeArray<InstanceHandle> instances)
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{
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m_InstanceDataSystem.FreeInstances(instances);
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}
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public JobHandle ScheduleQueryRendererGroupInstancesJob(NativeArray<int> rendererGroupIDs, NativeArray<InstanceHandle> instances)
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{
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return m_InstanceDataSystem.ScheduleQueryRendererGroupInstancesJob(rendererGroupIDs, instances);
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}
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public JobHandle ScheduleQueryRendererGroupInstancesJob(NativeArray<int> rendererGroupIDs, NativeList<InstanceHandle> instances)
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{
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return m_InstanceDataSystem.ScheduleQueryRendererGroupInstancesJob(rendererGroupIDs, instances);
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}
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public JobHandle ScheduleQueryRendererGroupInstancesJob(NativeArray<int> rendererGroupIDs, NativeArray<int> instancesOffset, NativeArray<int> instancesCount, NativeList<InstanceHandle> instances)
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{
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return m_InstanceDataSystem.ScheduleQueryRendererGroupInstancesJob(rendererGroupIDs, instancesOffset, instancesCount, instances);
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}
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public JobHandle ScheduleQueryMeshInstancesJob(NativeArray<int> sortedMeshIDs, NativeList<InstanceHandle> instances)
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{
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return m_InstanceDataSystem.ScheduleQuerySortedMeshInstancesJob(sortedMeshIDs, instances);
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}
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public void ChangeInstanceBufferVersion()
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{
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++m_InstanceDataBuffer.version;
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}
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public GPUInstanceDataBufferUploader CreateDataBufferUploader(int capacity, InstanceType instanceType)
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{
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//@ This is not quite efficient as we will allocate all the parameters/descriptions of an certain type but write only some of them later.
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//@ We should allow to preallocate space only for needed parameters/descriptions.
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return new GPUInstanceDataBufferUploader(m_InstanceDataBuffer.descriptions, capacity, instanceType);
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}
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public void SubmitToGpu(NativeArray<InstanceHandle> instances, ref GPUInstanceDataBufferUploader uploader, bool submitOnlyWrittenParams)
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{
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uploader.SubmitToGpu(m_InstanceDataBuffer, instances, ref m_UploadResources, submitOnlyWrittenParams);
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}
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public void SubmitToGpu(NativeArray<GPUInstanceIndex> gpuInstanceIndices, ref GPUInstanceDataBufferUploader uploader, bool submitOnlyWrittenParams)
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{
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uploader.SubmitToGpu(m_InstanceDataBuffer, gpuInstanceIndices, ref m_UploadResources, submitOnlyWrittenParams);
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}
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public void InitializeInstanceTransforms(NativeArray<InstanceHandle> instances, NativeArray<Matrix4x4> localToWorldMatrices, NativeArray<Matrix4x4> prevLocalToWorldMatrices)
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{
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if (instances.Length == 0)
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return;
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m_InstanceDataSystem.InitializeInstanceTransforms(instances, localToWorldMatrices, prevLocalToWorldMatrices, m_RenderersParameters, m_InstanceDataBuffer);
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ChangeInstanceBufferVersion();
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}
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public void UpdateInstanceTransforms(NativeArray<InstanceHandle> instances, NativeArray<Matrix4x4> localToWorldMatrices)
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{
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if(instances.Length == 0)
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return;
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m_InstanceDataSystem.UpdateInstanceTransforms(instances, localToWorldMatrices, m_RenderersParameters, m_InstanceDataBuffer);
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ChangeInstanceBufferVersion();
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}
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public void UpdateAmbientProbeAndGpuBuffer(bool forceUpdate)
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{
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if (forceUpdate || m_CachedAmbientProbe != RenderSettings.ambientProbe)
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{
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m_CachedAmbientProbe = RenderSettings.ambientProbe;
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m_InstanceDataSystem.UpdateAllInstanceProbes(m_RenderersParameters, m_InstanceDataBuffer);
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ChangeInstanceBufferVersion();
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}
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}
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public void UpdateInstanceWindDataHistory(NativeArray<GPUInstanceIndex> gpuInstanceIndices)
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{
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if (gpuInstanceIndices.Length == 0)
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return;
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m_InstanceDataSystem.UpdateInstanceWindDataHistory(gpuInstanceIndices, m_RenderersParameters, m_InstanceDataBuffer);
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ChangeInstanceBufferVersion();
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}
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// This should be called at the end of the frame loop to properly update motion vectors.
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public void UpdateInstanceMotions()
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{
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m_InstanceDataSystem.UpdateInstanceMotions(m_RenderersParameters, m_InstanceDataBuffer);
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ChangeInstanceBufferVersion();
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}
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public void TransformLODGroups(NativeArray<int> lodGroupsID)
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{
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if (lodGroupsID.Length == 0)
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return;
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m_GPUDrivenProcessor.DispatchLODGroupData(lodGroupsID, m_TransformLODGroupCallback);
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}
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public void UpdatePerFrameInstanceVisibility(in ParallelBitArray compactedVisibilityMasks)
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{
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m_InstanceDataSystem.UpdatePerFrameInstanceVisibility(compactedVisibilityMasks);
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}
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public JobHandle ScheduleCollectInstancesLODGroupAndMasksJob(NativeArray<InstanceHandle> instances, NativeArray<uint> lodGroupAndMasks)
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{
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|
return m_InstanceDataSystem.ScheduleCollectInstancesLODGroupAndMasksJob(instances, lodGroupAndMasks);
|
||
|
|
}
|
||
|
|
|
||
|
|
public InstanceHandle GetRendererInstanceHandle(int rendererID)
|
||
|
|
{
|
||
|
|
var rendererIDs = new NativeArray<int>(1, Allocator.TempJob);
|
||
|
|
var instances = new NativeArray<InstanceHandle>(1, Allocator.TempJob);
|
||
|
|
|
||
|
|
rendererIDs[0] = rendererID;
|
||
|
|
|
||
|
|
m_InstanceDataSystem.ScheduleQueryRendererGroupInstancesJob(rendererIDs, instances).Complete();
|
||
|
|
|
||
|
|
InstanceHandle instance = instances[0];
|
||
|
|
|
||
|
|
rendererIDs.Dispose();
|
||
|
|
instances.Dispose();
|
||
|
|
|
||
|
|
return instance;
|
||
|
|
}
|
||
|
|
|
||
|
|
public void GetVisibleTreeInstances(in ParallelBitArray compactedVisibilityMasks, in ParallelBitArray processedBits, NativeList<int> visibeTreeRendererIDs,
|
||
|
|
NativeList<InstanceHandle> visibeTreeInstances, bool becomeVisibleOnly, out int becomeVisibeTreeInstancesCount)
|
||
|
|
{
|
||
|
|
m_InstanceDataSystem.GetVisibleTreeInstances(compactedVisibilityMasks, processedBits, visibeTreeRendererIDs, visibeTreeInstances, becomeVisibleOnly, out becomeVisibeTreeInstancesCount);
|
||
|
|
}
|
||
|
|
|
||
|
|
public GPUInstanceDataBuffer GetInstanceDataBuffer()
|
||
|
|
{
|
||
|
|
return m_InstanceDataBuffer;
|
||
|
|
}
|
||
|
|
|
||
|
|
public void UpdateFrame()
|
||
|
|
{
|
||
|
|
m_OcclusionCullingCommon.UpdateFrame();
|
||
|
|
if (m_DebugStats != null)
|
||
|
|
m_OcclusionCullingCommon.UpdateOccluderStats(m_DebugStats);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if UNITY_EDITOR
|
||
|
|
public void UpdateSelectedInstances(NativeArray<InstanceHandle> instances)
|
||
|
|
{
|
||
|
|
m_InstanceDataSystem.UpdateSelectedInstances(instances);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|