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Created December 11, 2019 12:27
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Old example of LWRP that sorted lights using the LightIndexMap
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
#if UNITY_EDITOR
using UnityEditor.Experimental.Rendering.LightweightPipeline;
#endif
using UnityEngine.Experimental.GlobalIllumination;
using UnityEngine.Rendering;
using UnityEngine.Rendering.PostProcessing;
using UnityEngine.XR;
namespace UnityEngine.Experimental.Rendering.LightweightPipeline
{
[Serializable]
public class ShadowSettings
{
public bool enabled;
public bool screenSpace;
public int shadowAtlasWidth;
public int shadowAtlasHeight;
public float maxShadowDistance;
public int directionalLightCascadeCount;
public Vector3 directionalLightCascades;
public float directionalLightNearPlaneOffset;
public RenderTextureFormat shadowmapTextureFormat;
public RenderTextureFormat screenspaceShadowmapTextureFormat;
static ShadowSettings defaultShadowSettings = null;
public static ShadowSettings Default
{
get
{
if (defaultShadowSettings == null)
{
defaultShadowSettings = new ShadowSettings();
defaultShadowSettings.enabled = true;
defaultShadowSettings.screenSpace = true;
defaultShadowSettings.shadowAtlasHeight = defaultShadowSettings.shadowAtlasWidth = 4096;
defaultShadowSettings.directionalLightCascadeCount = 1;
defaultShadowSettings.directionalLightCascades = new Vector3(0.05F, 0.2F, 0.3F);
defaultShadowSettings.directionalLightNearPlaneOffset = 5;
defaultShadowSettings.maxShadowDistance = 1000.0F;
defaultShadowSettings.shadowmapTextureFormat = RenderTextureFormat.Shadowmap;
defaultShadowSettings.screenspaceShadowmapTextureFormat = RenderTextureFormat.R8;
}
return defaultShadowSettings;
}
}
}
public struct ShadowSliceData
{
public Matrix4x4 shadowTransform;
public int atlasX;
public int atlasY;
public int shadowResolution;
}
public struct LightData
{
public int pixelAdditionalLightsCount;
public int totalAdditionalLightsCount;
public int mainLightIndex;
public LightShadows shadowMapSampleType;
}
public enum MixedLightingSetup
{
None = 0,
ShadowMask,
Subtractive,
};
public static class CameraRenderTargetID
{
// Camera color target. Not used when camera is rendering to backbuffer or camera
// is rendering to a texture (offscreen camera)
public static int color;
// Camera copy color texture. In case there is a single BeforeTransparent postFX
// we need use copyColor RT as a work RT.
public static int copyColor;
// Camera depth target. Only used when post processing, soft particles, or screen space shadows are enabled.
public static int depth;
// If soft particles are enabled and no depth prepass is performed we need to copy depth.
public static int depthCopy;
}
public class LightweightPipeline : RenderPipeline
{
private readonly LightweightPipelineAsset m_Asset;
// Maximum amount of visible lights the shader can process. This controls the constant global light buffer size.
// It must match the MAX_VISIBLE_LIGHTS in LightweightInput.cginc
private static readonly int kMaxVisibleLights = 16;
// Lights are culled per-object. This holds the maximum amount of lights that can be shaded per-object.
// The engine fills in the lights indices per-object in unity4_LightIndices0 and unity_4LightIndices1
private static readonly int kMaxPerObjectLights = 8;
private static readonly int kMaxVertexLights = 4;
private static readonly float kRenderScaleThreshold = 0.05f;
private bool m_IsOffscreenCamera;
private Vector4 kDefaultLightPosition = new Vector4(0.0f, 0.0f, 1.0f, 0.0f);
private Vector4 kDefaultLightColor = Color.black;
private Vector4 kDefaultLightAttenuation = new Vector4(0.0f, 1.0f, 0.0f, 1.0f);
private Vector4 kDefaultLightSpotDirection = new Vector4(0.0f, 0.0f, 1.0f, 0.0f);
private Vector4 kDefaultLightSpotAttenuation = new Vector4(0.0f, 1.0f, 0.0f, 0.0f);
private Vector4[] m_LightPositions = new Vector4[kMaxVisibleLights];
private Vector4[] m_LightColors = new Vector4[kMaxVisibleLights];
private Vector4[] m_LightDistanceAttenuations = new Vector4[kMaxVisibleLights];
private Vector4[] m_LightSpotDirections = new Vector4[kMaxVisibleLights];
private Vector4[] m_LightSpotAttenuations = new Vector4[kMaxVisibleLights];
private Camera m_CurrCamera;
private const int kMaxCascades = 4;
private int m_ShadowCasterCascadesCount;
private int m_ShadowMapRTID;
private int m_ScreenSpaceShadowMapRTID;
private Matrix4x4[] m_ShadowMatrices = new Matrix4x4[kMaxCascades + 1];
private RenderTargetIdentifier m_CurrCameraColorRT;
private RenderTexture m_ShadowMapRT;
private RenderTargetIdentifier m_ScreenSpaceShadowMapRT;
private RenderTargetIdentifier m_ColorRT;
private RenderTargetIdentifier m_CopyColorRT;
private RenderTargetIdentifier m_DepthRT;
private RenderTargetIdentifier m_CopyDepth;
private RenderTargetIdentifier m_Color;
private float m_RenderScale;
private bool m_IntermediateTextureArray;
private bool m_RequireDepthTexture;
private bool m_RequireCopyColor;
private bool m_DepthRenderBuffer;
private MixedLightingSetup m_MixedLightingSetup;
private const int kDepthStencilBufferBits = 32;
private const int kShadowBufferBits = 16;
private Vector4[] m_DirectionalShadowSplitDistances = new Vector4[kMaxCascades];
private Vector4 m_DirectionalShadowSplitRadii;
private ShadowSettings m_ShadowSettings = ShadowSettings.Default;
private ShadowSliceData[] m_ShadowSlices = new ShadowSliceData[kMaxCascades];
// Pipeline pass names
private static readonly ShaderPassName m_DepthPrepass = new ShaderPassName("DepthOnly");
private static readonly ShaderPassName m_LitPassName = new ShaderPassName("LightweightForward");
private static readonly ShaderPassName m_UnlitPassName = new ShaderPassName("SRPDefaultUnlit"); // Renders all shaders without a lightmode tag
// Legacy pass names
public static readonly ShaderPassName s_AlwaysName = new ShaderPassName("Always");
public static readonly ShaderPassName s_ForwardBaseName = new ShaderPassName("ForwardBase");
public static readonly ShaderPassName s_PrepassBaseName = new ShaderPassName("PrepassBase");
public static readonly ShaderPassName s_VertexName = new ShaderPassName("Vertex");
public static readonly ShaderPassName s_VertexLMRGBMName = new ShaderPassName("VertexLMRGBM");
public static readonly ShaderPassName s_VertexLMName = new ShaderPassName("VertexLM");
public static readonly ShaderPassName[] s_LegacyPassNames =
{
s_AlwaysName, s_ForwardBaseName, s_PrepassBaseName, s_VertexName, s_VertexLMRGBMName, s_VertexLMName
};
private RenderTextureFormat m_ColorFormat;
private PostProcessRenderContext m_PostProcessRenderContext;
private PostProcessLayer m_CameraPostProcessLayer;
private CameraComparer m_CameraComparer = new CameraComparer();
private LightComparer m_LightComparer = new LightComparer();
// Maps from sorted light indices to original unsorted. We need this for shadow rendering
// and per-object light lists.
private List<int> m_SortedLightIndexMap = new List<int>();
private Dictionary<VisibleLight, int> m_VisibleLightsIDMap = new Dictionary<VisibleLight, int>(new LightEqualityComparer());
private Mesh m_BlitQuad;
private Material m_BlitMaterial;
private Material m_CopyDepthMaterial;
private Material m_ErrorMaterial;
private Material m_ScreenSpaceShadowsMaterial;
private int m_BlitTexID = Shader.PropertyToID("_BlitTex");
private CopyTextureSupport m_CopyTextureSupport;
public LightweightPipeline(LightweightPipelineAsset asset)
{
m_Asset = asset;
BuildShadowSettings();
SetRenderingFeatures();
PerFrameBuffer._GlossyEnvironmentColor = Shader.PropertyToID("_GlossyEnvironmentColor");
PerFrameBuffer._SubtractiveShadowColor = Shader.PropertyToID("_SubtractiveShadowColor");
// Lights are culled per-camera. Therefore we need to reset light buffers on each camera render
PerCameraBuffer._MainLightPosition = Shader.PropertyToID("_MainLightPosition");
PerCameraBuffer._MainLightColor = Shader.PropertyToID("_MainLightColor");
PerCameraBuffer._MainLightDistanceAttenuation = Shader.PropertyToID("_MainLightDistanceAttenuation");
PerCameraBuffer._MainLightSpotDir = Shader.PropertyToID("_MainLightSpotDir");
PerCameraBuffer._MainLightSpotAttenuation = Shader.PropertyToID("_MainLightSpotAttenuation");
PerCameraBuffer._MainLightCookie = Shader.PropertyToID("_MainLightCookie");
PerCameraBuffer._WorldToLight = Shader.PropertyToID("_WorldToLight");
PerCameraBuffer._AdditionalLightCount = Shader.PropertyToID("_AdditionalLightCount");
PerCameraBuffer._AdditionalLightPosition = Shader.PropertyToID("_AdditionalLightPosition");
PerCameraBuffer._AdditionalLightColor = Shader.PropertyToID("_AdditionalLightColor");
PerCameraBuffer._AdditionalLightDistanceAttenuation = Shader.PropertyToID("_AdditionalLightDistanceAttenuation");
PerCameraBuffer._AdditionalLightSpotDir = Shader.PropertyToID("_AdditionalLightSpotDir");
PerCameraBuffer._AdditionalLightSpotAttenuation = Shader.PropertyToID("_AdditionalLightSpotAttenuation");
PerCameraBuffer._ScaledScreenParams = Shader.PropertyToID("_ScaledScreenParams");
ShadowConstantBuffer._WorldToShadow = Shader.PropertyToID("_WorldToShadow");
ShadowConstantBuffer._ShadowData = Shader.PropertyToID("_ShadowData");
ShadowConstantBuffer._DirShadowSplitSpheres = Shader.PropertyToID("_DirShadowSplitSpheres");
ShadowConstantBuffer._DirShadowSplitSphereRadii = Shader.PropertyToID("_DirShadowSplitSphereRadii");
ShadowConstantBuffer._ShadowOffset0 = Shader.PropertyToID("_ShadowOffset0");
ShadowConstantBuffer._ShadowOffset1 = Shader.PropertyToID("_ShadowOffset1");
ShadowConstantBuffer._ShadowOffset2 = Shader.PropertyToID("_ShadowOffset2");
ShadowConstantBuffer._ShadowOffset3 = Shader.PropertyToID("_ShadowOffset3");
ShadowConstantBuffer._ShadowmapSize = Shader.PropertyToID("_ShadowmapSize");
m_ShadowMapRTID = Shader.PropertyToID("_ShadowMap");
m_ScreenSpaceShadowMapRTID = Shader.PropertyToID("_ScreenSpaceShadowMap");
CameraRenderTargetID.color = Shader.PropertyToID("_CameraColorRT");
CameraRenderTargetID.copyColor = Shader.PropertyToID("_CameraCopyColorRT");
CameraRenderTargetID.depth = Shader.PropertyToID("_CameraDepthTexture");
CameraRenderTargetID.depthCopy = Shader.PropertyToID("_CameraCopyDepthTexture");
m_ScreenSpaceShadowMapRT = new RenderTargetIdentifier(m_ScreenSpaceShadowMapRTID);
m_ColorRT = new RenderTargetIdentifier(CameraRenderTargetID.color);
m_CopyColorRT = new RenderTargetIdentifier(CameraRenderTargetID.copyColor);
m_DepthRT = new RenderTargetIdentifier(CameraRenderTargetID.depth);
m_CopyDepth = new RenderTargetIdentifier(CameraRenderTargetID.depthCopy);
m_PostProcessRenderContext = new PostProcessRenderContext();
m_CopyTextureSupport = SystemInfo.copyTextureSupport;
for (int i = 0; i < kMaxCascades; ++i)
m_DirectionalShadowSplitDistances[i] = new Vector4(0.0f, 0.0f, 0.0f, 0.0f);
m_DirectionalShadowSplitRadii = new Vector4(0.0f, 0.0f, 0.0f, 0.0f);
// Let engine know we have MSAA on for cases where we support MSAA backbuffer
if (QualitySettings.antiAliasing != m_Asset.MSAASampleCount)
QualitySettings.antiAliasing = m_Asset.MSAASampleCount;
Shader.globalRenderPipeline = "LightweightPipeline";
m_BlitQuad = LightweightUtils.CreateQuadMesh(false);
m_BlitMaterial = CoreUtils.CreateEngineMaterial(m_Asset.BlitShader);
m_CopyDepthMaterial = CoreUtils.CreateEngineMaterial(m_Asset.CopyDepthShader);
m_ScreenSpaceShadowsMaterial = CoreUtils.CreateEngineMaterial(m_Asset.ScreenSpaceShadowShader);
m_ErrorMaterial = CoreUtils.CreateEngineMaterial("Hidden/InternalErrorShader");
}
public override void Dispose()
{
base.Dispose();
Shader.globalRenderPipeline = "";
SupportedRenderingFeatures.active = new SupportedRenderingFeatures();
CoreUtils.Destroy(m_ErrorMaterial);
CoreUtils.Destroy(m_CopyDepthMaterial);
CoreUtils.Destroy(m_BlitMaterial);
#if UNITY_EDITOR
SceneViewDrawMode.ResetDrawMode();
#endif
}
private void SetRenderingFeatures()
{
#if UNITY_EDITOR
SupportedRenderingFeatures.active = new SupportedRenderingFeatures()
{
reflectionProbeSupportFlags = SupportedRenderingFeatures.ReflectionProbeSupportFlags.None,
defaultMixedLightingMode = SupportedRenderingFeatures.LightmapMixedBakeMode.Subtractive,
supportedMixedLightingModes = SupportedRenderingFeatures.LightmapMixedBakeMode.Subtractive,
supportedLightmapBakeTypes = LightmapBakeType.Baked | LightmapBakeType.Mixed,
supportedLightmapsModes = LightmapsMode.CombinedDirectional | LightmapsMode.NonDirectional,
rendererSupportsLightProbeProxyVolumes = false,
rendererSupportsMotionVectors = false,
rendererSupportsReceiveShadows = true,
rendererSupportsReflectionProbes = true
};
SceneViewDrawMode.SetupDrawMode();
#endif
}
CullResults m_CullResults;
public override void Render(ScriptableRenderContext context, Camera[] cameras)
{
base.Render(context, cameras);
RenderPipeline.BeginFrameRendering(cameras);
GraphicsSettings.lightsUseLinearIntensity = true;
SetupPerFrameShaderConstants();
// Sort cameras array by camera depth
Array.Sort(cameras, m_CameraComparer);
foreach (Camera camera in cameras)
{
m_CurrCamera = camera;
bool sceneViewCamera = m_CurrCamera.cameraType == CameraType.SceneView;
bool stereoEnabled = IsStereoEnabled(m_CurrCamera);
// Disregard variations around kRenderScaleThreshold.
m_RenderScale = (Mathf.Abs(1.0f - m_Asset.RenderScale) < kRenderScaleThreshold) ? 1.0f : m_Asset.RenderScale;
// XR has it's own scaling mechanism.
m_RenderScale = (m_CurrCamera.cameraType == CameraType.Game && !stereoEnabled) ? m_RenderScale : 1.0f;
m_IsOffscreenCamera = m_CurrCamera.targetTexture != null && m_CurrCamera.cameraType != CameraType.SceneView;
SetupPerCameraShaderConstants();
RenderPipeline.BeginCameraRendering(m_CurrCamera);
ScriptableCullingParameters cullingParameters;
if (!CullResults.GetCullingParameters(m_CurrCamera, stereoEnabled, out cullingParameters))
continue;
var cmd = CommandBufferPool.Get("");
cullingParameters.shadowDistance = Mathf.Min(m_ShadowSettings.maxShadowDistance,
m_CurrCamera.farClipPlane);
#if UNITY_EDITOR
// Emit scene view UI
if (sceneViewCamera)
ScriptableRenderContext.EmitWorldGeometryForSceneView(camera);
#endif
CullResults.Cull(ref cullingParameters, context, ref m_CullResults);
List<VisibleLight> visibleLights = m_CullResults.visibleLights;
LightData lightData;
InitializeLightData(visibleLights, out lightData);
bool shadows = ShadowPass(visibleLights, ref context, ref lightData);
FrameRenderingConfiguration frameRenderingConfiguration;
SetupFrameRenderingConfiguration(out frameRenderingConfiguration, shadows, stereoEnabled, sceneViewCamera);
SetupIntermediateResources(frameRenderingConfiguration, shadows, ref context);
// SetupCameraProperties does the following:
// Setup Camera RenderTarget and Viewport
// VR Camera Setup and SINGLE_PASS_STEREO props
// Setup camera view, proj and their inv matrices.
// Setup properties: _WorldSpaceCameraPos, _ProjectionParams, _ScreenParams, _ZBufferParams, unity_OrthoParams
// Setup camera world clip planes props
// setup HDR keyword
// Setup global time properties (_Time, _SinTime, _CosTime)
context.SetupCameraProperties(m_CurrCamera, stereoEnabled);
if (LightweightUtils.HasFlag(frameRenderingConfiguration, FrameRenderingConfiguration.DepthPrePass))
DepthPass(ref context, frameRenderingConfiguration);
if (shadows && m_ShadowSettings.screenSpace)
ShadowCollectPass(visibleLights, ref context, ref lightData, frameRenderingConfiguration);
ForwardPass(visibleLights, frameRenderingConfiguration, ref context, ref lightData, stereoEnabled);
cmd.name = "After Camera Render";
#if UNITY_EDITOR
if (sceneViewCamera)
CopyTexture(cmd, CameraRenderTargetID.depth, BuiltinRenderTextureType.CameraTarget, m_CopyDepthMaterial, true);
#endif
cmd.ReleaseTemporaryRT(m_ScreenSpaceShadowMapRTID);
cmd.ReleaseTemporaryRT(CameraRenderTargetID.depthCopy);
cmd.ReleaseTemporaryRT(CameraRenderTargetID.depth);
cmd.ReleaseTemporaryRT(CameraRenderTargetID.color);
cmd.ReleaseTemporaryRT(CameraRenderTargetID.copyColor);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
context.Submit();
if (m_ShadowMapRT)
{
RenderTexture.ReleaseTemporary(m_ShadowMapRT);
m_ShadowMapRT = null;
}
}
}
private bool ShadowPass(List<VisibleLight> visibleLights, ref ScriptableRenderContext context, ref LightData lightData)
{
m_ShadowMapRT = null;
if (m_Asset.AreShadowsEnabled() && lightData.mainLightIndex != -1)
{
VisibleLight mainLight = visibleLights[lightData.mainLightIndex];
if (mainLight.light.shadows != LightShadows.None)
{
if (!LightweightUtils.IsSupportedShadowType(mainLight.lightType))
{
Debug.LogWarning("Only directional and spot shadows are supported by LightweightPipeline.");
return false;
}
// There's no way to map shadow light indices. We need to pass in the original unsorted index.
// If no additional lights then no light sorting is performed and the indices match.
int shadowOriginalIndex = (lightData.totalAdditionalLightsCount > 0) ? GetLightUnsortedIndex(lightData.mainLightIndex) : lightData.mainLightIndex;
bool shadowsRendered = RenderShadows(ref m_CullResults, ref mainLight, shadowOriginalIndex, ref context);
if (shadowsRendered)
{
lightData.shadowMapSampleType = (m_Asset.ShadowSetting != ShadowType.SOFT_SHADOWS) ? LightShadows.Hard : mainLight.light.shadows;
// In order to avoid shader variants explosion we only do hard shadows when sampling shadowmap in the lit pass.
// GLES2 platform is forced to hard single cascade shadows.
if (!m_ShadowSettings.screenSpace)
lightData.shadowMapSampleType = LightShadows.Hard;
}
else
{
lightData.shadowMapSampleType = LightShadows.None;
}
return shadowsRendered;
}
}
return false;
}
private void ShadowCollectPass(List<VisibleLight> visibleLights, ref ScriptableRenderContext context, ref LightData lightData, FrameRenderingConfiguration frameRenderingConfiguration)
{
CommandBuffer cmd = CommandBufferPool.Get("Collect Shadows");
SetShadowCollectPassKeywords(cmd, visibleLights[lightData.mainLightIndex], ref lightData);
// Note: The source isn't actually 'used', but there's an engine peculiarity (bug) that
// doesn't like null sources when trying to determine a stereo-ized blit. So for proper
// stereo functionality, we use the screen-space shadow map as the source (until we have
// a better solution).
// An alternative would be DrawProcedural, but that would require further changes in the shader.
cmd.SetRenderTarget(m_ScreenSpaceShadowMapRT);
cmd.ClearRenderTarget(true, true, Color.white);
cmd.Blit(m_ScreenSpaceShadowMapRT, m_ScreenSpaceShadowMapRT, m_ScreenSpaceShadowsMaterial);
StartStereoRendering(ref context, frameRenderingConfiguration);
context.ExecuteCommandBuffer(cmd);
StopStereoRendering(ref context, frameRenderingConfiguration);
CommandBufferPool.Release(cmd);
}
private void DepthPass(ref ScriptableRenderContext context, FrameRenderingConfiguration frameRenderingConfiguration)
{
CommandBuffer cmd = CommandBufferPool.Get("Depth Prepass");
SetRenderTarget(cmd, m_DepthRT, ClearFlag.Depth);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
var opaqueDrawSettings = new DrawRendererSettings(m_CurrCamera, m_DepthPrepass);
opaqueDrawSettings.sorting.flags = SortFlags.CommonOpaque;
var opaqueFilterSettings = new FilterRenderersSettings(true)
{
renderQueueRange = RenderQueueRange.opaque
};
StartStereoRendering(ref context, frameRenderingConfiguration);
context.DrawRenderers(m_CullResults.visibleRenderers, ref opaqueDrawSettings, opaqueFilterSettings);
StopStereoRendering(ref context, frameRenderingConfiguration);
}
private void ForwardPass(List<VisibleLight> visibleLights, FrameRenderingConfiguration frameRenderingConfiguration, ref ScriptableRenderContext context, ref LightData lightData, bool stereoEnabled)
{
SetupShaderConstants(visibleLights, ref context, ref lightData);
RendererConfiguration rendererSettings = GetRendererSettings(ref lightData);
BeginForwardRendering(ref context, frameRenderingConfiguration);
RenderOpaques(ref context, rendererSettings);
AfterOpaque(ref context, frameRenderingConfiguration);
RenderTransparents(ref context, rendererSettings);
AfterTransparent(ref context, frameRenderingConfiguration);
EndForwardRendering(ref context, frameRenderingConfiguration);
}
private void RenderOpaques(ref ScriptableRenderContext context, RendererConfiguration settings)
{
var opaqueDrawSettings = new DrawRendererSettings(m_CurrCamera, m_LitPassName);
opaqueDrawSettings.SetShaderPassName(1, m_UnlitPassName);
opaqueDrawSettings.sorting.flags = SortFlags.CommonOpaque;
opaqueDrawSettings.rendererConfiguration = settings;
var opaqueFilterSettings = new FilterRenderersSettings(true)
{
renderQueueRange = RenderQueueRange.opaque
};
context.DrawRenderers(m_CullResults.visibleRenderers, ref opaqueDrawSettings, opaqueFilterSettings);
// Render objects that did not match any shader pass with error shader
RenderObjectsWithError(ref context, opaqueFilterSettings, SortFlags.None);
if (m_CurrCamera.clearFlags == CameraClearFlags.Skybox)
context.DrawSkybox(m_CurrCamera);
}
private void AfterOpaque(ref ScriptableRenderContext context, FrameRenderingConfiguration config)
{
if (!m_RequireDepthTexture)
return;
CommandBuffer cmd = CommandBufferPool.Get("After Opaque");
cmd.SetGlobalTexture(CameraRenderTargetID.depth, m_DepthRT);
bool setRenderTarget = false;
RenderTargetIdentifier depthRT = m_DepthRT;
// TODO: There's currently an issue in the PostFX stack that has a one frame delay when an effect is enabled/disabled
// when an effect is disabled, HasOpaqueOnlyEffects returns true in the first frame, however inside render the effect
// state is update, causing RenderPostProcess here to not blit to FinalColorRT. Until the next frame the RT will have garbage.
if (LightweightUtils.HasFlag(config, FrameRenderingConfiguration.BeforeTransparentPostProcess))
{
// When only have one effect in the stack we blit to a work RT then blit it back to active color RT.
// This seems like an extra blit but it saves us a depth copy/blit which has some corner cases like msaa depth resolve.
if (m_RequireCopyColor)
{
RenderPostProcess(cmd, m_CurrCameraColorRT, m_CopyColorRT, true);
cmd.Blit(m_CopyColorRT, m_CurrCameraColorRT);
}
else
RenderPostProcess(cmd, m_CurrCameraColorRT, m_CurrCameraColorRT, true);
setRenderTarget = true;
SetRenderTarget(cmd, m_CurrCameraColorRT, m_DepthRT);
}
if (LightweightUtils.HasFlag(config, FrameRenderingConfiguration.DepthCopy))
{
CopyTexture(cmd, m_DepthRT, m_CopyDepth, m_CopyDepthMaterial);
depthRT = m_CopyDepth;
setRenderTarget = true;
}
if (setRenderTarget)
SetRenderTarget(cmd, m_CurrCameraColorRT, depthRT);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
private void RenderTransparents(ref ScriptableRenderContext context, RendererConfiguration config)
{
var transparentSettings = new DrawRendererSettings(m_CurrCamera, m_LitPassName);
transparentSettings.SetShaderPassName(1, m_UnlitPassName);
transparentSettings.sorting.flags = SortFlags.CommonTransparent;
transparentSettings.rendererConfiguration = config;
var transparentFilterSettings = new FilterRenderersSettings(true)
{
renderQueueRange = RenderQueueRange.transparent
};
context.DrawRenderers(m_CullResults.visibleRenderers, ref transparentSettings, transparentFilterSettings);
// Render objects that did not match any shader pass with error shader
RenderObjectsWithError(ref context, transparentFilterSettings, SortFlags.None);
}
private void AfterTransparent(ref ScriptableRenderContext context, FrameRenderingConfiguration config)
{
if (!LightweightUtils.HasFlag(config, FrameRenderingConfiguration.PostProcess))
return;
CommandBuffer cmd = CommandBufferPool.Get("After Transparent");
RenderPostProcess(cmd, m_CurrCameraColorRT, BuiltinRenderTextureType.CameraTarget, false);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
[Conditional("DEVELOPMENT_BUILD"), Conditional("UNITY_EDITOR")]
private void RenderObjectsWithError(ref ScriptableRenderContext context, FilterRenderersSettings filterSettings, SortFlags sortFlags)
{
if (m_ErrorMaterial != null)
{
DrawRendererSettings errorSettings = new DrawRendererSettings(m_CurrCamera, s_LegacyPassNames[0]);
for (int i = 1; i < s_LegacyPassNames.Length; ++i)
errorSettings.SetShaderPassName(i, s_LegacyPassNames[i]);
errorSettings.sorting.flags = sortFlags;
errorSettings.rendererConfiguration = RendererConfiguration.None;
errorSettings.SetOverrideMaterial(m_ErrorMaterial, 0);
context.DrawRenderers(m_CullResults.visibleRenderers, ref errorSettings, filterSettings);
}
}
private void BuildShadowSettings()
{
m_ShadowSettings = ShadowSettings.Default;
m_ShadowSettings.screenSpace = SystemInfo.graphicsDeviceType != GraphicsDeviceType.OpenGLES2;
m_ShadowSettings.directionalLightCascadeCount = (m_ShadowSettings.screenSpace) ? m_Asset.CascadeCount : 1;
m_ShadowSettings.shadowAtlasWidth = m_Asset.ShadowAtlasResolution;
m_ShadowSettings.shadowAtlasHeight = m_Asset.ShadowAtlasResolution;
m_ShadowSettings.maxShadowDistance = m_Asset.ShadowDistance;
m_ShadowSettings.shadowmapTextureFormat = SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.Shadowmap)
? RenderTextureFormat.Shadowmap
: RenderTextureFormat.Depth;
m_ShadowSettings.screenspaceShadowmapTextureFormat = SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.R8)
? RenderTextureFormat.R8
: RenderTextureFormat.ARGB32;
switch (m_ShadowSettings.directionalLightCascadeCount)
{
case 1:
m_ShadowSettings.directionalLightCascades = new Vector3(1.0f, 0.0f, 0.0f);
break;
case 2:
m_ShadowSettings.directionalLightCascades = new Vector3(m_Asset.Cascade2Split, 1.0f, 0.0f);
break;
default:
m_ShadowSettings.directionalLightCascades = m_Asset.Cascade4Split;
break;
}
}
private void SetupFrameRenderingConfiguration(out FrameRenderingConfiguration configuration, bool shadows, bool stereoEnabled, bool sceneViewCamera)
{
configuration = (stereoEnabled) ? FrameRenderingConfiguration.Stereo : FrameRenderingConfiguration.None;
if (stereoEnabled && XRSettings.eyeTextureDesc.dimension == TextureDimension.Tex2DArray)
m_IntermediateTextureArray = true;
else
m_IntermediateTextureArray = false;
bool hdrEnabled = m_Asset.SupportsHDR && m_CurrCamera.allowHDR;
bool defaultRenderScale = Mathf.Approximately(GetRenderScale(), 1.0f);
bool intermediateTexture = m_CurrCamera.targetTexture != null || m_CurrCamera.cameraType == CameraType.SceneView ||
!defaultRenderScale || hdrEnabled;
m_ColorFormat = hdrEnabled ? RenderTextureFormat.DefaultHDR : RenderTextureFormat.Default;
m_RequireCopyColor = false;
m_DepthRenderBuffer = false;
m_CameraPostProcessLayer = m_CurrCamera.GetComponent<PostProcessLayer>();
bool msaaEnabled = m_CurrCamera.allowMSAA && m_Asset.MSAASampleCount > 1 && (m_CurrCamera.targetTexture == null || m_CurrCamera.targetTexture.antiAliasing > 1);
// TODO: PostProcessing and SoftParticles are currently not support for VR
bool postProcessEnabled = m_CameraPostProcessLayer != null && m_CameraPostProcessLayer.enabled && !stereoEnabled;
m_RequireDepthTexture = m_Asset.RequireDepthTexture && !stereoEnabled;
if (postProcessEnabled)
{
m_RequireDepthTexture = true;
intermediateTexture = true;
configuration |= FrameRenderingConfiguration.PostProcess;
if (m_CameraPostProcessLayer.HasOpaqueOnlyEffects(m_PostProcessRenderContext))
{
configuration |= FrameRenderingConfiguration.BeforeTransparentPostProcess;
if (m_CameraPostProcessLayer.sortedBundles[PostProcessEvent.BeforeTransparent].Count == 1)
m_RequireCopyColor = true;
}
}
if (sceneViewCamera)
m_RequireDepthTexture = true;
if (shadows)
{
m_RequireDepthTexture = m_ShadowSettings.screenSpace;
if (!msaaEnabled)
intermediateTexture = true;
}
if (msaaEnabled)
{
configuration |= FrameRenderingConfiguration.Msaa;
intermediateTexture = intermediateTexture || !LightweightUtils.PlatformSupportsMSAABackBuffer();
}
if (m_RequireDepthTexture)
{
// If msaa is enabled we don't use a depth renderbuffer as we might not have support to Texture2DMS to resolve depth.
// Instead we use a depth prepass and whenever depth is needed we use the 1 sample depth from prepass.
// Screen space shadows require depth before opaque shading.
if (!msaaEnabled && !shadows)
{
bool supportsDepthCopy = m_CopyTextureSupport != CopyTextureSupport.None && m_Asset.CopyDepthShader.isSupported;
m_DepthRenderBuffer = true;
intermediateTexture = true;
// If requiring a camera depth texture we need separate depth as it reads/write to depth at same time
// Post process doesn't need the copy
if (!m_Asset.RequireDepthTexture && postProcessEnabled)
configuration |= (supportsDepthCopy) ? FrameRenderingConfiguration.DepthCopy : FrameRenderingConfiguration.DepthPrePass;
}
else
{
configuration |= FrameRenderingConfiguration.DepthPrePass;
}
}
Rect cameraRect = m_CurrCamera.rect;
if (!(Math.Abs(cameraRect.x) > 0.0f || Math.Abs(cameraRect.y) > 0.0f || Math.Abs(cameraRect.width) < 1.0f || Math.Abs(cameraRect.height) < 1.0f))
configuration |= FrameRenderingConfiguration.DefaultViewport;
else
intermediateTexture = true;
if (intermediateTexture)
configuration |= FrameRenderingConfiguration.IntermediateTexture;
}
private void SetupIntermediateResources(FrameRenderingConfiguration renderingConfig, bool shadows, ref ScriptableRenderContext context)
{
CommandBuffer cmd = CommandBufferPool.Get("Setup Intermediate Resources");
int msaaSamples = (m_IsOffscreenCamera) ? Math.Min(m_CurrCamera.targetTexture.antiAliasing, m_Asset.MSAASampleCount) : m_Asset.MSAASampleCount;
msaaSamples = (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.Msaa)) ? msaaSamples : 1;
m_CurrCameraColorRT = BuiltinRenderTextureType.CameraTarget;
if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.IntermediateTexture) || m_RequireDepthTexture)
SetupIntermediateRenderTextures(cmd, renderingConfig, shadows, msaaSamples);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
private void SetupIntermediateRenderTextures(CommandBuffer cmd, FrameRenderingConfiguration renderingConfig, bool shadows, int msaaSamples)
{
RenderTextureDescriptor baseDesc;
if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.Stereo))
baseDesc = XRSettings.eyeTextureDesc;
else
baseDesc = new RenderTextureDescriptor(m_CurrCamera.pixelWidth, m_CurrCamera.pixelHeight);
float renderScale = GetRenderScale();
baseDesc.width = (int)((float)baseDesc.width * renderScale);
baseDesc.height = (int)((float)baseDesc.height * renderScale);
if (m_RequireDepthTexture)
{
var depthRTDesc = baseDesc;
depthRTDesc.colorFormat = RenderTextureFormat.Depth;
depthRTDesc.depthBufferBits = kDepthStencilBufferBits;
cmd.GetTemporaryRT(CameraRenderTargetID.depth, depthRTDesc, FilterMode.Bilinear);
if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.DepthCopy))
cmd.GetTemporaryRT(CameraRenderTargetID.depthCopy, depthRTDesc, FilterMode.Bilinear);
if (shadows && m_ShadowSettings.screenSpace)
{
var screenspaceShadowmapDesc = baseDesc;
screenspaceShadowmapDesc.depthBufferBits = 0;
screenspaceShadowmapDesc.colorFormat = m_ShadowSettings.screenspaceShadowmapTextureFormat;
cmd.GetTemporaryRT(m_ScreenSpaceShadowMapRTID, screenspaceShadowmapDesc, FilterMode.Bilinear);
}
}
var colorRTDesc = baseDesc;
colorRTDesc.colorFormat = m_ColorFormat;
colorRTDesc.depthBufferBits = kDepthStencilBufferBits; // TODO: does the color RT always need depth?
colorRTDesc.sRGB = true;
colorRTDesc.msaaSamples = msaaSamples;
colorRTDesc.enableRandomWrite = false;
// When offscreen camera current rendertarget is CameraTarget
if (!m_IsOffscreenCamera)
{
cmd.GetTemporaryRT(CameraRenderTargetID.color, colorRTDesc, FilterMode.Bilinear);
m_CurrCameraColorRT = m_ColorRT;
}
// When BeforeTransparent PostFX is enabled and only one effect is in the stack we need to create a temp
// color RT to blit the effect.
if (m_RequireCopyColor)
cmd.GetTemporaryRT(CameraRenderTargetID.copyColor, colorRTDesc, FilterMode.Point);
}
private void SetupShaderConstants(List<VisibleLight> visibleLights, ref ScriptableRenderContext context, ref LightData lightData)
{
CommandBuffer cmd = CommandBufferPool.Get("SetupShaderConstants");
SetupShaderLightConstants(cmd, visibleLights, ref lightData);
SetShaderKeywords(cmd, ref lightData, visibleLights);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
private void InitializeLightData(List<VisibleLight> visibleLights, out LightData lightData)
{
int visibleLightsCount = Math.Min(visibleLights.Count, m_Asset.MaxPixelLights);
m_SortedLightIndexMap.Clear();
lightData.shadowMapSampleType = LightShadows.None;
if (visibleLightsCount <= 1)
lightData.mainLightIndex = GetMainLight(visibleLights);
else
lightData.mainLightIndex = SortLights(visibleLights);
// If we have a main light we don't shade it in the per-object light loop. We also remove it from the per-object cull list
int mainLightPresent = (lightData.mainLightIndex >= 0) ? 1 : 0;
int additionalPixelLightsCount = visibleLightsCount - mainLightPresent;
int vertexLightCount = (m_Asset.SupportsVertexLight) ? Math.Min(visibleLights.Count, kMaxPerObjectLights) - additionalPixelLightsCount - mainLightPresent : 0;
vertexLightCount = Math.Min(vertexLightCount, kMaxVertexLights);
lightData.pixelAdditionalLightsCount = additionalPixelLightsCount;
lightData.totalAdditionalLightsCount = additionalPixelLightsCount + vertexLightCount;
m_MixedLightingSetup = MixedLightingSetup.None;
}
private int SortLights(List<VisibleLight> visibleLights)
{
int totalVisibleLights = visibleLights.Count;
m_VisibleLightsIDMap.Clear();
for (int i = 0; i < totalVisibleLights; ++i)
m_VisibleLightsIDMap.Add(visibleLights[i], i);
// Sorts light so we have all directionals first, then local lights.
// Directionals are sorted further by shadow, cookie and intensity
// Locals are sorted further by shadow, cookie and distance to camera
m_LightComparer.CurrCamera = m_CurrCamera;
visibleLights.Sort(m_LightComparer);
for (int i = 0; i < totalVisibleLights; ++i)
m_SortedLightIndexMap.Add(m_VisibleLightsIDMap[visibleLights[i]]);
return GetMainLight(visibleLights);
}
// How main light is decided:
// If shadows enabled, main light is always a shadow casting light. Directional has priority over local lights.
// Otherwise directional lights have priority based on cookie support and intensity
private int GetMainLight(List<VisibleLight> visibleLights)
{
int totalVisibleLights = visibleLights.Count;
bool shadowsEnabled = m_Asset.AreShadowsEnabled();
if (totalVisibleLights == 0 || m_Asset.MaxPixelLights == 0)
return -1;
int brighestDirectionalIndex = -1;
for (int i = 0; i < totalVisibleLights; ++i)
{
VisibleLight currLight = visibleLights[i];
// Particle system lights have the light property as null. We sort lights so all particles lights
// come last. Therefore, if first light is particle light then all lights are particle lights.
// In this case we either have no main light or already found it.
if (currLight.light == null)
break;
// Shadow lights are sorted by type (directional > puctual) and intensity
// The first shadow light we find in the list is the main light
if (shadowsEnabled && currLight.light.shadows != LightShadows.None && LightweightUtils.IsSupportedShadowType(currLight.lightType))
return i;
// In case no shadow light is present we will return the brightest directional light
if (currLight.lightType == LightType.Directional && brighestDirectionalIndex == -1)
brighestDirectionalIndex = i;
}
return brighestDirectionalIndex;
}
private void InitializeLightConstants(List<VisibleLight> lights, int lightIndex, out Vector4 lightPos, out Vector4 lightColor, out Vector4 lightDistanceAttenuation, out Vector4 lightSpotDir,
out Vector4 lightSpotAttenuation)
{
lightPos = kDefaultLightPosition;
lightColor = kDefaultLightColor;
lightDistanceAttenuation = kDefaultLightSpotAttenuation;
lightSpotDir = kDefaultLightSpotDirection;
lightSpotAttenuation = kDefaultLightAttenuation;
// When no lights are visible, main light will be set to -1.
// In this case we initialize it to default values and return
if (lightIndex < 0)
return;
VisibleLight lightData = lights[lightIndex];
if (lightData.lightType == LightType.Directional)
{
Vector4 dir = -lightData.localToWorld.GetColumn(2);
lightPos = new Vector4(dir.x, dir.y, dir.z, 0.0f);
}
else
{
Vector4 pos = lightData.localToWorld.GetColumn(3);
lightPos = new Vector4(pos.x, pos.y, pos.z, 1.0f);
}
// VisibleLight.finalColor already returns color in active color space
lightColor = lightData.finalColor;
// Directional Light attenuation is initialize so distance attenuation always be 1.0
if (lightData.lightType != LightType.Directional)
{
// Light attenuation in lightweight matches the unity vanilla one.
// attenuation = 1.0 / 1.0 + distanceToLightSqr * quadraticAttenuation
// then a smooth factor is applied to linearly fade attenuation to light range
// the attenuation smooth factor starts having effect at 80% of light range
// smoothFactor = (lightRangeSqr - distanceToLightSqr) / (lightRangeSqr - fadeStartDistanceSqr)
// We rewrite smoothFactor to be able to pre compute the constant terms below and apply the smooth factor
// with one MAD instruction
// smoothFactor = distanceSqr * (1.0 / (fadeDistanceSqr - lightRangeSqr)) + (-lightRangeSqr / (fadeDistanceSqr - lightRangeSqr)
// distanceSqr * oneOverFadeRangeSqr + lightRangeSqrOverFadeRangeSqr
float lightRangeSqr = lightData.range * lightData.range;
float fadeStartDistanceSqr = 0.8f * 0.8f * lightRangeSqr;
float fadeRangeSqr = (fadeStartDistanceSqr - lightRangeSqr);
float oneOverFadeRangeSqr = 1.0f / fadeRangeSqr;
float lightRangeSqrOverFadeRangeSqr = -lightRangeSqr / fadeRangeSqr;
float quadAtten = 25.0f / lightRangeSqr;
lightDistanceAttenuation = new Vector4(quadAtten, oneOverFadeRangeSqr, lightRangeSqrOverFadeRangeSqr, 1.0f);
}
if (lightData.lightType == LightType.Spot)
{
Vector4 dir = lightData.localToWorld.GetColumn(2);
lightSpotDir = new Vector4(-dir.x, -dir.y, -dir.z, 0.0f);
// Spot Attenuation with a linear falloff can be defined as
// (SdotL - cosOuterAngle) / (cosInnerAngle - cosOuterAngle)
// This can be rewritten as
// invAngleRange = 1.0 / (cosInnerAngle - cosOuterAngle)
// SdotL * invAngleRange + (-cosOuterAngle * invAngleRange)
// If we precompute the terms in a MAD instruction
float cosOuterAngle = Mathf.Cos(Mathf.Deg2Rad * lightData.spotAngle * 0.5f);
// We neeed to do a null check for particle lights
// This should be changed in the future
// Particle lights will use an inline function
float cosInnerAngle;
if (lightData.light != null)
cosInnerAngle = Mathf.Cos(LightmapperUtils.ExtractInnerCone(lightData.light) * 0.5f);
else
cosInnerAngle = Mathf.Cos((2.0f * Mathf.Atan(Mathf.Tan(lightData.spotAngle * 0.5f * Mathf.Deg2Rad) * (64.0f - 18.0f) / 64.0f)) * 0.5f);
float smoothAngleRange = Mathf.Max(0.001f, cosInnerAngle - cosOuterAngle);
float invAngleRange = 1.0f / smoothAngleRange;
float add = -cosOuterAngle * invAngleRange;
lightSpotAttenuation = new Vector4(invAngleRange, add, 0.0f);
}
Light light = lightData.light;
// TODO: Add support to shadow mask
if (light != null && light.bakingOutput.mixedLightingMode == MixedLightingMode.Subtractive && light.bakingOutput.lightmapBakeType == LightmapBakeType.Mixed)
{
if (m_MixedLightingSetup == MixedLightingSetup.None && lightData.light.shadows != LightShadows.None)
{
m_MixedLightingSetup = MixedLightingSetup.Subtractive;
lightDistanceAttenuation.w = 0.0f;
}
}
}
private void SetupPerFrameShaderConstants()
{
// When glossy reflections are OFF in the shader we set a constant color to use as indirect specular
SphericalHarmonicsL2 ambientSH = RenderSettings.ambientProbe;
Color linearGlossyEnvColor = new Color(ambientSH[0, 0], ambientSH[1, 0], ambientSH[2, 0]) * RenderSettings.reflectionIntensity;
Color glossyEnvColor = CoreUtils.ConvertLinearToActiveColorSpace(linearGlossyEnvColor);
Shader.SetGlobalVector(PerFrameBuffer._GlossyEnvironmentColor, glossyEnvColor);
// Used when subtractive mode is selected
Shader.SetGlobalVector(PerFrameBuffer._SubtractiveShadowColor, CoreUtils.ConvertSRGBToActiveColorSpace(RenderSettings.subtractiveShadowColor));
}
private void SetupPerCameraShaderConstants()
{
float cameraWidth = GetScaledCameraWidth(m_CurrCamera);
float cameraHeight = GetScaledCameraHeight(m_CurrCamera);
Shader.SetGlobalVector(PerCameraBuffer._ScaledScreenParams, new Vector4(cameraWidth, cameraHeight, 1.0f + 1.0f / cameraWidth, 1.0f + 1.0f / cameraHeight));
}
private void SetupShaderLightConstants(CommandBuffer cmd, List<VisibleLight> lights, ref LightData lightData)
{
// Main light has an optimized shader path for main light. This will benefit games that only care about a single light.
// Lightweight pipeline also supports only a single shadow light, if available it will be the main light.
SetupMainLightConstants(cmd, lights, lightData.mainLightIndex);
SetupAdditionalListConstants(cmd, lights, ref lightData);
}
private void SetupMainLightConstants(CommandBuffer cmd, List<VisibleLight> lights, int lightIndex)
{
Vector4 lightPos, lightColor, lightDistanceAttenuation, lightSpotDir, lightSpotAttenuation;
InitializeLightConstants(lights, lightIndex, out lightPos, out lightColor, out lightDistanceAttenuation, out lightSpotDir, out lightSpotAttenuation);
if (lightIndex >= 0)
{
LightType mainLightType = lights[lightIndex].lightType;
Light mainLight = lights[lightIndex].light;
if (LightweightUtils.IsSupportedCookieType(mainLightType) && mainLight.cookie != null)
{
Matrix4x4 lightCookieMatrix;
LightweightUtils.GetLightCookieMatrix(lights[lightIndex], out lightCookieMatrix);
cmd.SetGlobalTexture(PerCameraBuffer._MainLightCookie, mainLight.cookie);
cmd.SetGlobalMatrix(PerCameraBuffer._WorldToLight, lightCookieMatrix);
}
}
cmd.SetGlobalVector(PerCameraBuffer._MainLightPosition, lightPos);
cmd.SetGlobalVector(PerCameraBuffer._MainLightColor, lightColor);
cmd.SetGlobalVector(PerCameraBuffer._MainLightDistanceAttenuation, lightDistanceAttenuation);
cmd.SetGlobalVector(PerCameraBuffer._MainLightSpotDir, lightSpotDir);
cmd.SetGlobalVector(PerCameraBuffer._MainLightSpotAttenuation, lightSpotAttenuation);
}
private void SetupAdditionalListConstants(CommandBuffer cmd, List<VisibleLight> lights, ref LightData lightData)
{
int additionalLightIndex = 0;
if (lightData.totalAdditionalLightsCount > 0)
{
// We need to update per-object light list with the proper map to our global additional light buffer
// First we initialize all lights in the map to -1 to tell the system to discard main light index and
// remaining lights in the scene that don't fit the max additional light buffer (kMaxVisibileAdditionalLights)
int[] perObjectLightIndexMap = m_CullResults.GetLightIndexMap();
for (int i = 0; i < lights.Count; ++i)
perObjectLightIndexMap[i] = -1;
for (int i = 0; i < lights.Count && additionalLightIndex < kMaxVisibleLights; ++i)
{
if (i != lightData.mainLightIndex)
{
// The engine performs per-object light culling and initialize 8 light indices into two vec4 constants unity_4LightIndices0 and unity_4LightIndices1.
// In the shader we iterate over each visible light using the indices provided in these constants to index our global light buffer
// ex: first light position would be m_LightPosisitions[unity_4LightIndices[0]];
// However since we sorted the lights we need to tell the engine how to map the original/unsorted indices to our global buffer
// We do it by settings the perObjectLightIndexMap to the appropriate additionalLightIndex.
perObjectLightIndexMap[GetLightUnsortedIndex(i)] = additionalLightIndex;
InitializeLightConstants(lights, i, out m_LightPositions[additionalLightIndex],
out m_LightColors[additionalLightIndex],
out m_LightDistanceAttenuations[additionalLightIndex],
out m_LightSpotDirections[additionalLightIndex],
out m_LightSpotAttenuations[additionalLightIndex]);
additionalLightIndex++;
}
}
m_CullResults.SetLightIndexMap(perObjectLightIndexMap);
cmd.SetGlobalVector(PerCameraBuffer._AdditionalLightCount, new Vector4(lightData.pixelAdditionalLightsCount,
lightData.totalAdditionalLightsCount, 0.0f, 0.0f));
}
else
{
cmd.SetGlobalVector(PerCameraBuffer._AdditionalLightCount, Vector4.zero);
// Clear to default all light cosntant data
for (int i = 0; i < kMaxVisibleLights; ++i)
InitializeLightConstants(lights, -1, out m_LightPositions[additionalLightIndex],
out m_LightColors[additionalLightIndex],
out m_LightDistanceAttenuations[additionalLightIndex],
out m_LightSpotDirections[additionalLightIndex],
out m_LightSpotAttenuations[additionalLightIndex]);
}
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightPosition, m_LightPositions);
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightColor, m_LightColors);
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightDistanceAttenuation, m_LightDistanceAttenuations);
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightSpotDir, m_LightSpotDirections);
cmd.SetGlobalVectorArray(PerCameraBuffer._AdditionalLightSpotAttenuation, m_LightSpotAttenuations);
}
private void SetupShadowCasterConstants(CommandBuffer cmd, ref VisibleLight visibleLight, Matrix4x4 proj, float cascadeResolution)
{
Light light = visibleLight.light;
float bias = 0.0f;
float normalBias = 0.0f;
// Use same kernel radius as built-in pipeline so we can achieve same bias results
// with the default light bias parameters.
const float kernelRadius = 3.65f;
if (visibleLight.lightType == LightType.Directional)
{
// Scale bias by cascade's world space depth range.
// Directional shadow lights have orthogonal projection.
// proj.m22 = -2 / (far - near) since the projection's depth range is [-1.0, 1.0]
// In order to be correct we should multiply bias by 0.5 but this introducing aliasing along cascades more visible.
float sign = (SystemInfo.usesReversedZBuffer) ? 1.0f : -1.0f;
bias = light.shadowBias * proj.m22 * sign;
// Currently only square POT cascades resolutions are used.
// We scale normalBias
double frustumWidth = 2.0 / (double)proj.m00;
double frustumHeight = 2.0 / (double)proj.m11;
float texelSizeX = (float)(frustumWidth / (double)cascadeResolution);
float texelSizeY = (float)(frustumHeight / (double)cascadeResolution);
float texelSize = Mathf.Max(texelSizeX, texelSizeY);
// Since we are applying normal bias on caster side we want an inset normal offset
// thus we use a negative normal bias.
normalBias = -light.shadowNormalBias * texelSize * kernelRadius;
}
else if (visibleLight.lightType == LightType.Spot)
{
float sign = (SystemInfo.usesReversedZBuffer) ? -1.0f : 1.0f;
bias = light.shadowBias * sign;
normalBias = 0.0f;
}
else
{
Debug.LogWarning("Only spot and directional shadow casters are supported in lightweight pipeline");
}
Vector3 lightDirection = -visibleLight.localToWorld.GetColumn(2);
cmd.SetGlobalVector("_ShadowBias", new Vector4(bias, normalBias, 0.0f, 0.0f));
cmd.SetGlobalVector("_LightDirection", new Vector4(lightDirection.x, lightDirection.y, lightDirection.z, 0.0f));
}
private void SetupShadowReceiverConstants(CommandBuffer cmd, VisibleLight shadowLight, ref ScriptableRenderContext context)
{
Light light = shadowLight.light;
int cascadeCount = m_ShadowCasterCascadesCount;
for (int i = 0; i < kMaxCascades; ++i)
m_ShadowMatrices[i] = (cascadeCount >= i) ? m_ShadowSlices[i].shadowTransform : Matrix4x4.identity;
// We setup and additional a no-op WorldToShadow matrix in the last index
// because the ComputeCascadeIndex function in Shadows.hlsl can return an index
// out of bounds. (position not inside any cascade) and we want to avoid branching
Matrix4x4 noOpShadowMatrix = Matrix4x4.zero;
noOpShadowMatrix.m33 = (SystemInfo.usesReversedZBuffer) ? 1.0f : 0.0f;
m_ShadowMatrices[kMaxCascades] = noOpShadowMatrix;
float invShadowResolution = 1.0f / m_Asset.ShadowAtlasResolution;
float invHalfShadowResolution = 0.5f * invShadowResolution;
cmd.Clear();
cmd.SetGlobalTexture(m_ShadowMapRTID, m_ShadowMapRT);
cmd.SetGlobalMatrixArray(ShadowConstantBuffer._WorldToShadow, m_ShadowMatrices);
cmd.SetGlobalVector(ShadowConstantBuffer._ShadowData, new Vector4(light.shadowStrength, 0.0f, 0.0f, 0.0f));
cmd.SetGlobalVectorArray(ShadowConstantBuffer._DirShadowSplitSpheres, m_DirectionalShadowSplitDistances);
cmd.SetGlobalVector(ShadowConstantBuffer._DirShadowSplitSphereRadii, m_DirectionalShadowSplitRadii);
cmd.SetGlobalVector(ShadowConstantBuffer._ShadowOffset0, new Vector4(-invHalfShadowResolution, -invHalfShadowResolution, 0.0f, 0.0f));
cmd.SetGlobalVector(ShadowConstantBuffer._ShadowOffset1, new Vector4(invHalfShadowResolution, -invHalfShadowResolution, 0.0f, 0.0f));
cmd.SetGlobalVector(ShadowConstantBuffer._ShadowOffset2, new Vector4(-invHalfShadowResolution, invHalfShadowResolution, 0.0f, 0.0f));
cmd.SetGlobalVector(ShadowConstantBuffer._ShadowOffset3, new Vector4(invHalfShadowResolution, invHalfShadowResolution, 0.0f, 0.0f));
cmd.SetGlobalVector(ShadowConstantBuffer._ShadowmapSize, new Vector4(invShadowResolution, invShadowResolution, m_Asset.ShadowAtlasResolution, m_Asset.ShadowAtlasResolution));
context.ExecuteCommandBuffer(cmd);
}
private void SetShaderKeywords(CommandBuffer cmd, ref LightData lightData, List<VisibleLight> visibleLights)
{
int vertexLightsCount = lightData.totalAdditionalLightsCount - lightData.pixelAdditionalLightsCount;
int mainLightIndex = lightData.mainLightIndex;
//TIM: Not used in shader for V1 to reduce keywords
CoreUtils.SetKeyword(cmd, "_MAIN_LIGHT_DIRECTIONAL", mainLightIndex == -1 || visibleLights[mainLightIndex].lightType == LightType.Directional);
//TIM: Not used in shader for V1 to reduce keywords
CoreUtils.SetKeyword(cmd, "_MAIN_LIGHT_SPOT", mainLightIndex != -1 && visibleLights[mainLightIndex].lightType == LightType.Spot);
//TIM: Not used in shader for V1 to reduce keywords
CoreUtils.SetKeyword(cmd, "_SHADOWS_ENABLED", lightData.shadowMapSampleType != LightShadows.None);
//TIM: Not used in shader for V1 to reduce keywords
CoreUtils.SetKeyword(cmd, "_MAIN_LIGHT_COOKIE", mainLightIndex != -1 && LightweightUtils.IsSupportedCookieType(visibleLights[mainLightIndex].lightType) && visibleLights[mainLightIndex].light.cookie != null);
CoreUtils.SetKeyword(cmd, "_ADDITIONAL_LIGHTS", lightData.totalAdditionalLightsCount > 0);
CoreUtils.SetKeyword(cmd, "_MIXED_LIGHTING_SUBTRACTIVE", m_MixedLightingSetup == MixedLightingSetup.Subtractive);
CoreUtils.SetKeyword(cmd, "_VERTEX_LIGHTS", vertexLightsCount > 0);
CoreUtils.SetKeyword(cmd, "SOFTPARTICLES_ON", m_RequireDepthTexture && m_Asset.RequireSoftParticles);
bool linearFogModeEnabled = false;
bool exponentialFogModeEnabled = false;
if (RenderSettings.fog)
{
if (RenderSettings.fogMode == FogMode.Linear)
linearFogModeEnabled = true;
else
exponentialFogModeEnabled = true;
}
CoreUtils.SetKeyword(cmd, "FOG_LINEAR", linearFogModeEnabled);
CoreUtils.SetKeyword(cmd, "FOG_EXP2", exponentialFogModeEnabled);
}
private void SetShadowCollectPassKeywords(CommandBuffer cmd, VisibleLight shadowLight, ref LightData lightData)
{
bool cascadeShadows = shadowLight.lightType == LightType.Directional && m_Asset.CascadeCount > 1;
CoreUtils.SetKeyword(cmd, "_SHADOWS_SOFT", lightData.shadowMapSampleType == LightShadows.Soft);
CoreUtils.SetKeyword(cmd, "_SHADOWS_CASCADE", cascadeShadows);
}
private bool RenderShadows(ref CullResults cullResults, ref VisibleLight shadowLight, int shadowLightIndex, ref ScriptableRenderContext context)
{
m_ShadowCasterCascadesCount = m_ShadowSettings.directionalLightCascadeCount;
if (shadowLight.lightType == LightType.Spot)
m_ShadowCasterCascadesCount = 1;
int shadowResolution = GetMaxTileResolutionInAtlas(m_ShadowSettings.shadowAtlasWidth, m_ShadowSettings.shadowAtlasHeight, m_ShadowCasterCascadesCount);
Bounds bounds;
if (!cullResults.GetShadowCasterBounds(shadowLightIndex, out bounds))
return false;
float shadowNearPlane = m_Asset.ShadowNearOffset;
Matrix4x4 view, proj;
var settings = new DrawShadowsSettings(cullResults, shadowLightIndex);
bool success = false;
var cmd = CommandBufferPool.Get("Prepare Shadowmap");
RenderTextureDescriptor shadowmapDescriptor = new RenderTextureDescriptor(m_ShadowSettings.shadowAtlasWidth,
m_ShadowSettings.shadowAtlasHeight, m_ShadowSettings.shadowmapTextureFormat, kShadowBufferBits);
shadowmapDescriptor.shadowSamplingMode = ShadowSamplingMode.CompareDepths;
m_ShadowMapRT = RenderTexture.GetTemporary(shadowmapDescriptor);
m_ShadowMapRT.filterMode = FilterMode.Bilinear;
m_ShadowMapRT.wrapMode = TextureWrapMode.Clamp;
// LightweightPipeline.SetRenderTarget is meant to be used with camera targets, not shadowmaps
CoreUtils.SetRenderTarget(cmd, m_ShadowMapRT, ClearFlag.Depth, CoreUtils.ConvertSRGBToActiveColorSpace(m_CurrCamera.backgroundColor));
if (shadowLight.lightType == LightType.Spot)
{
success = cullResults.ComputeSpotShadowMatricesAndCullingPrimitives(shadowLightIndex, out view, out proj,
out settings.splitData);
if (success)
{
SetupShadowCasterConstants(cmd, ref shadowLight, proj, shadowResolution);
SetupShadowSliceTransform(0, shadowResolution, proj, view);
RenderShadowSlice(cmd, ref context, 0, proj, view, settings);
}
}
else if (shadowLight.lightType == LightType.Directional)
{
for (int cascadeIdx = 0; cascadeIdx < m_ShadowCasterCascadesCount; ++cascadeIdx)
{
success = cullResults.ComputeDirectionalShadowMatricesAndCullingPrimitives(shadowLightIndex,
cascadeIdx, m_ShadowCasterCascadesCount, m_ShadowSettings.directionalLightCascades, shadowResolution, shadowNearPlane, out view, out proj,
out settings.splitData);
float cullingSphereRadius = settings.splitData.cullingSphere.w;
m_DirectionalShadowSplitDistances[cascadeIdx] = settings.splitData.cullingSphere;
m_DirectionalShadowSplitRadii[cascadeIdx] = cullingSphereRadius * cullingSphereRadius;
if (!success)
break;
SetupShadowCasterConstants(cmd, ref shadowLight, proj, shadowResolution);
SetupShadowSliceTransform(cascadeIdx, shadowResolution, proj, view);
RenderShadowSlice(cmd, ref context, cascadeIdx, proj, view, settings);
}
}
else
{
Debug.LogWarning("Only spot and directional shadow casters are supported in lightweight pipeline");
}
if (success)
SetupShadowReceiverConstants(cmd, shadowLight, ref context);
CommandBufferPool.Release(cmd);
return success;
}
private void SetupShadowSliceTransform(int cascadeIndex, int shadowResolution, Matrix4x4 proj, Matrix4x4 view)
{
if (cascadeIndex >= kMaxCascades)
{
Debug.LogError(String.Format("{0} is an invalid cascade index. Maximum of {1} cascades", cascadeIndex, kMaxCascades));
return;
}
int atlasX = (cascadeIndex % 2) * shadowResolution;
int atlasY = (cascadeIndex / 2) * shadowResolution;
float atlasWidth = (float)m_ShadowSettings.shadowAtlasWidth;
float atlasHeight = (float)m_ShadowSettings.shadowAtlasHeight;
// Currently CullResults ComputeDirectionalShadowMatricesAndCullingPrimitives doesn't
// apply z reversal to projection matrix. We need to do it manually here.
if (SystemInfo.usesReversedZBuffer)
{
proj.m20 = -proj.m20;
proj.m21 = -proj.m21;
proj.m22 = -proj.m22;
proj.m23 = -proj.m23;
}
Matrix4x4 worldToShadow = proj * view;
var textureScaleAndBias = Matrix4x4.identity;
textureScaleAndBias.m00 = 0.5f;
textureScaleAndBias.m11 = 0.5f;
textureScaleAndBias.m22 = 0.5f;
textureScaleAndBias.m03 = 0.5f;
textureScaleAndBias.m23 = 0.5f;
textureScaleAndBias.m13 = 0.5f;
// Apply texture scale and offset to save a MAD in shader.
worldToShadow = textureScaleAndBias * worldToShadow;
var cascadeAtlas = Matrix4x4.identity;
cascadeAtlas.m00 = (float)shadowResolution / atlasWidth;
cascadeAtlas.m11 = (float)shadowResolution / atlasHeight;
cascadeAtlas.m03 = (float)atlasX / atlasWidth;
cascadeAtlas.m13 = (float)atlasY / atlasHeight;
// Apply cascade scale and offset
worldToShadow = cascadeAtlas * worldToShadow;
m_ShadowSlices[cascadeIndex].atlasX = atlasX;
m_ShadowSlices[cascadeIndex].atlasY = atlasY;
m_ShadowSlices[cascadeIndex].shadowResolution = shadowResolution;
m_ShadowSlices[cascadeIndex].shadowTransform = worldToShadow;
}
private void RenderShadowSlice(CommandBuffer cmd, ref ScriptableRenderContext context, int cascadeIndex,
Matrix4x4 proj, Matrix4x4 view, DrawShadowsSettings settings)
{
cmd.SetViewport(new Rect(m_ShadowSlices[cascadeIndex].atlasX, m_ShadowSlices[cascadeIndex].atlasY,
m_ShadowSlices[cascadeIndex].shadowResolution, m_ShadowSlices[cascadeIndex].shadowResolution));
cmd.EnableScissorRect(new Rect(m_ShadowSlices[cascadeIndex].atlasX + 4, m_ShadowSlices[cascadeIndex].atlasY + 4,
m_ShadowSlices[cascadeIndex].shadowResolution - 8, m_ShadowSlices[cascadeIndex].shadowResolution - 8));
cmd.SetViewProjectionMatrices(view, proj);
context.ExecuteCommandBuffer(cmd);
cmd.Clear();
context.DrawShadows(ref settings);
cmd.DisableScissorRect();
context.ExecuteCommandBuffer(cmd);
cmd.Clear();
}
private int GetMaxTileResolutionInAtlas(int atlasWidth, int atlasHeight, int tileCount)
{
int resolution = Mathf.Min(atlasWidth, atlasHeight);
if (tileCount > Mathf.Log(resolution))
{
Debug.LogError(
String.Format(
"Cannot fit {0} tiles into current shadowmap atlas of size ({1}, {2}). ShadowMap Resolution set to zero.",
tileCount, atlasWidth, atlasHeight));
return 0;
}
int currentTileCount = atlasWidth / resolution * atlasHeight / resolution;
while (currentTileCount < tileCount)
{
resolution = resolution >> 1;
currentTileCount = atlasWidth / resolution * atlasHeight / resolution;
}
return resolution;
}
private void BeginForwardRendering(ref ScriptableRenderContext context, FrameRenderingConfiguration renderingConfig)
{
RenderTargetIdentifier colorRT = BuiltinRenderTextureType.CameraTarget;
RenderTargetIdentifier depthRT = BuiltinRenderTextureType.None;
StartStereoRendering(ref context, renderingConfig);
CommandBuffer cmd = CommandBufferPool.Get("SetCameraRenderTarget");
bool intermediateTexture = LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.IntermediateTexture);
if (intermediateTexture)
{
if (!m_IsOffscreenCamera)
colorRT = m_CurrCameraColorRT;
if (m_RequireDepthTexture)
depthRT = m_DepthRT;
}
ClearFlag clearFlag = ClearFlag.None;
CameraClearFlags cameraClearFlags = m_CurrCamera.clearFlags;
if (cameraClearFlags != CameraClearFlags.Nothing)
{
clearFlag |= ClearFlag.Depth;
if (cameraClearFlags == CameraClearFlags.Color || cameraClearFlags == CameraClearFlags.Skybox)
clearFlag |= ClearFlag.Color;
}
SetRenderTarget(cmd, colorRT, depthRT, clearFlag);
m_CurrCameraColorRT = colorRT;
// If rendering to an intermediate RT we resolve viewport on blit due to offset not being supported
// while rendering to a RT.
if (!intermediateTexture && !LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.DefaultViewport))
cmd.SetViewport(m_CurrCamera.pixelRect);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
private void EndForwardRendering(ref ScriptableRenderContext context, FrameRenderingConfiguration renderingConfig)
{
// No additional rendering needs to be done if this is an off screen rendering camera
if (m_IsOffscreenCamera)
return;
var cmd = CommandBufferPool.Get("Blit");
if (m_IntermediateTextureArray)
{
cmd.Blit(m_CurrCameraColorRT, BuiltinRenderTextureType.CameraTarget);
}
else if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.IntermediateTexture))
{
Material blitMaterial = m_BlitMaterial;
if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.Stereo))
blitMaterial = null;
// If PostProcessing is enabled, it is already blit to CameraTarget.
if (!LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.PostProcess))
Blit(cmd, renderingConfig, m_CurrCameraColorRT, BuiltinRenderTextureType.CameraTarget, blitMaterial);
}
SetRenderTarget(cmd, BuiltinRenderTextureType.CameraTarget);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.Stereo))
{
context.StopMultiEye(m_CurrCamera);
context.StereoEndRender(m_CurrCamera);
}
}
private bool IsStereoEnabled(Camera camera)
{
bool isSceneViewCamera = camera.cameraType == CameraType.SceneView;
return XRSettings.isDeviceActive && !isSceneViewCamera && (camera.stereoTargetEye == StereoTargetEyeMask.Both);
}
private float GetRenderScale()
{
return m_RenderScale;
}
private float GetScaledCameraWidth(Camera camera)
{
return (float) camera.pixelWidth * GetRenderScale();
}
private float GetScaledCameraHeight(Camera camera)
{
return (float) camera.pixelHeight * GetRenderScale();
}
private RendererConfiguration GetRendererSettings(ref LightData lightData)
{
RendererConfiguration settings = RendererConfiguration.PerObjectReflectionProbes | RendererConfiguration.PerObjectLightmaps | RendererConfiguration.PerObjectLightProbe;
if (lightData.totalAdditionalLightsCount > 0)
settings |= RendererConfiguration.PerObjectLightIndices8;
return settings;
}
private void SetRenderTarget(CommandBuffer cmd, RenderTargetIdentifier colorRT, ClearFlag clearFlag = ClearFlag.None)
{
int depthSlice = (m_IntermediateTextureArray) ? -1 : 0;
CoreUtils.SetRenderTarget(cmd, colorRT, clearFlag, CoreUtils.ConvertSRGBToActiveColorSpace(m_CurrCamera.backgroundColor), 0, CubemapFace.Unknown, depthSlice);
}
private void SetRenderTarget(CommandBuffer cmd, RenderTargetIdentifier colorRT, RenderTargetIdentifier depthRT, ClearFlag clearFlag = ClearFlag.None)
{
if (depthRT == BuiltinRenderTextureType.None || !m_DepthRenderBuffer)
{
SetRenderTarget(cmd, colorRT, clearFlag);
return;
}
int depthSlice = (m_IntermediateTextureArray) ? -1 : 0;
CoreUtils.SetRenderTarget(cmd, colorRT, depthRT, clearFlag, CoreUtils.ConvertSRGBToActiveColorSpace(m_CurrCamera.backgroundColor), 0, CubemapFace.Unknown, depthSlice);
}
private void RenderPostProcess(CommandBuffer cmd, RenderTargetIdentifier source, RenderTargetIdentifier dest, bool opaqueOnly)
{
m_PostProcessRenderContext.Reset();
m_PostProcessRenderContext.camera = m_CurrCamera;
m_PostProcessRenderContext.source = source;
m_PostProcessRenderContext.sourceFormat = m_ColorFormat;
m_PostProcessRenderContext.destination = dest;
m_PostProcessRenderContext.command = cmd;
m_PostProcessRenderContext.flip = m_CurrCamera.targetTexture == null;
if (opaqueOnly)
{
m_CameraPostProcessLayer.RenderOpaqueOnly(m_PostProcessRenderContext);
}
else
m_CameraPostProcessLayer.Render(m_PostProcessRenderContext);
}
private int GetLightUnsortedIndex(int index)
{
return (index < m_SortedLightIndexMap.Count) ? m_SortedLightIndexMap[index] : index;
}
private void Blit(CommandBuffer cmd, FrameRenderingConfiguration renderingConfig, RenderTargetIdentifier sourceRT, RenderTargetIdentifier destRT, Material material = null)
{
cmd.SetGlobalTexture(m_BlitTexID, sourceRT);
if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.DefaultViewport))
{
cmd.Blit(sourceRT, destRT, material);
}
else
{
if (m_BlitQuad == null)
m_BlitQuad = LightweightUtils.CreateQuadMesh(false);
SetRenderTarget(cmd, destRT);
cmd.SetViewProjectionMatrices(Matrix4x4.identity, Matrix4x4.identity);
cmd.SetViewport(m_CurrCamera.pixelRect);
cmd.DrawMesh(m_BlitQuad, Matrix4x4.identity, material);
}
}
private void CopyTexture(CommandBuffer cmd, RenderTargetIdentifier sourceRT, RenderTargetIdentifier destRT, Material copyMaterial, bool forceBlit = false)
{
if (m_CopyTextureSupport != CopyTextureSupport.None && !forceBlit)
cmd.CopyTexture(sourceRT, destRT);
else
cmd.Blit(sourceRT, destRT, copyMaterial);
}
private void StartStereoRendering(ref ScriptableRenderContext context, FrameRenderingConfiguration renderingConfiguration)
{
if (LightweightUtils.HasFlag(renderingConfiguration, FrameRenderingConfiguration.Stereo))
context.StartMultiEye(m_CurrCamera);
}
private void StopStereoRendering(ref ScriptableRenderContext context, FrameRenderingConfiguration renderingConfiguration)
{
if (LightweightUtils.HasFlag(renderingConfiguration, FrameRenderingConfiguration.Stereo))
context.StopMultiEye(m_CurrCamera);
}
}
}
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