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)
{
RenderPipeline.BeginCameraRendering(camera);
var cameraContext = CameraContext.Create(camera);
Render(ref context, cameraContext);
{
var cmd = CommandBufferPool.Get("");
cmd.name = "After Camera Render";
#if UNITY_EDITOR
if (cameraContext.SceneViewCamera)
{
m_TextureUtil.CopyTexture(cmd, CameraRenderTargetID.depth, BuiltinRenderTextureType.CameraTarget, true);
}
#endif
cmd.ReleaseTemporaryRT(m_ShadowManager.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();
m_ShadowManager.ReleaseRenderTarget();
}
}
public bool Cull(ref ScriptableRenderContext context
, CameraContext cameraContext
, float maxShadowDistance)
{
if (!CullResults.GetCullingParameters(cameraContext.Camera, cameraContext.StereoEnabled, out cullingParameters))
{
return(false);
}
cullingParameters.shadowDistance = Mathf.Min(maxShadowDistance, cameraContext.Camera.farClipPlane);
#if UNITY_EDITOR
// Emit scene view UI
if (cameraContext.SceneViewCamera)
{
ScriptableRenderContext.EmitWorldGeometryForSceneView(cameraContext.Camera);
}
#endif
CullResults.Cull(ref cullingParameters, context, ref m_CullResults);
return(true);
}
public FrameRenderingConfiguration SetupFrameRenderingConfiguration(CameraContext cameraContext, ShadowManager shadowManager)
{
var configuration = (cameraContext.StereoEnabled) ? FrameRenderingConfiguration.Stereo : FrameRenderingConfiguration.None;
if (cameraContext.StereoEnabled && XRSettings.eyeTextureDesc.dimension == TextureDimension.Tex2DArray)
{
m_IntermediateTextureArray = true;
}
else
{
m_IntermediateTextureArray = false;
}
var camera = cameraContext.Camera;
bool hdrEnabled = m_Asset.SupportsHDR && camera.allowHDR;
bool intermediateTexture = camera.targetTexture != null || camera.cameraType == CameraType.SceneView ||
m_Asset.RenderScale < 1.0f || hdrEnabled;
m_ColorFormat = hdrEnabled ? RenderTextureFormat.DefaultHDR : RenderTextureFormat.Default;
m_RequireCopyColor = false;
m_DepthRenderBuffer = false;
m_CameraPostProcessLayer = camera.GetComponent <PostProcessLayer>();
bool msaaEnabled = camera.allowMSAA && m_Asset.MSAASampleCount > 1 && (camera.targetTexture == null || camera.targetTexture.antiAliasing > 1);
// TODO: PostProcessing and SoftParticles are currently not support for VR
bool postProcessEnabled = m_CameraPostProcessLayer != null && m_CameraPostProcessLayer.enabled && !cameraContext.StereoEnabled;
m_RequireDepthTexture = m_Asset.RequireDepthTexture && !cameraContext.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 (cameraContext.SceneViewCamera)
{
m_RequireDepthTexture = true;
}
if (shadowManager.Shadows)
{
m_RequireDepthTexture = shadowManager.IsScreenSpace;
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 && !shadowManager.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 = camera.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;
}
return(configuration);
}
private void SetupIntermediateRenderTextures(CommandBuffer cmd, FrameRenderingConfiguration renderingConfig, int msaaSamples, CameraContext cameraContext, RenderTargetIdentifier ColorRT)
{
var camera = cameraContext.Camera;
RenderTextureDescriptor baseDesc;
if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.Stereo))
{
baseDesc = XRSettings.eyeTextureDesc;
}
else
{
baseDesc = new RenderTextureDescriptor(camera.pixelWidth, camera.pixelHeight);
}
float renderScale = (camera.cameraType == CameraType.Game) ? m_Asset.RenderScale : 1.0f;
baseDesc.width = (int)((float)baseDesc.width * renderScale);
baseDesc.height = (int)((float)baseDesc.height * renderScale);
// TODO: Might be worth caching baseDesc for allocation of other targets (Screen-space Shadow Map?)
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);
}
}
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 (!cameraContext.IsOffscreenCamera)
{
cmd.GetTemporaryRT(CameraRenderTargetID.color, colorRTDesc, FilterMode.Bilinear);
m_CurrCameraColorRT = 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);
}
}
public void SetupIntermediateResources(FrameRenderingConfiguration renderingConfig, ref ScriptableRenderContext context, CameraContext cameraContext, RenderTargetIdentifier colorRT)
{
CommandBuffer cmd = CommandBufferPool.Get("Setup Intermediate Resources");
int msaaSamples = (cameraContext.IsOffscreenCamera) ? Math.Min(cameraContext.Camera.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, msaaSamples, cameraContext, colorRT);
}
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
private void EndForwardRendering(ref ScriptableRenderContext context, FrameRenderingConfiguration renderingConfig, CameraContext cameraContext)
{
// No additional rendering needs to be done if this is an off screen rendering camera
if (cameraContext.IsOffscreenCamera)
{
return;
}
var camera = cameraContext.Camera;
m_TextureUtil.Blit(context, m_TextureUtil.CurrCameraColorRT, renderingConfig, camera);
if (LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.Stereo))
{
context.StopMultiEye(camera);
context.StereoEndRender(camera);
}
}
private void BeginForwardRendering(ref ScriptableRenderContext context, FrameRenderingConfiguration renderingConfig, CameraContext cameraContext)
{
RenderTargetIdentifier colorRT = BuiltinRenderTextureType.CameraTarget;
RenderTargetIdentifier depthRT = BuiltinRenderTextureType.None;
StereoRendering.Start(ref context, renderingConfig, cameraContext.Camera);
CommandBuffer cmd = CommandBufferPool.Get("SetCameraRenderTarget");
bool intermediateTexture = LightweightUtils.HasFlag(renderingConfig, FrameRenderingConfiguration.IntermediateTexture);
if (intermediateTexture)
{
if (!cameraContext.IsOffscreenCamera)
{
colorRT = m_TextureUtil.CurrCameraColorRT;
}
if (m_TextureUtil.RequireDepthTexture)
{
depthRT = m_DepthRT;
}
}
ClearFlag clearFlag = ClearFlag.None;
CameraClearFlags cameraClearFlags = cameraContext.Camera.clearFlags;
if (cameraClearFlags != CameraClearFlags.Nothing)
{
clearFlag |= ClearFlag.Depth;
if (cameraClearFlags == CameraClearFlags.Color || cameraClearFlags == CameraClearFlags.Skybox)
{
clearFlag |= ClearFlag.Color;
}
}
m_TextureUtil.SetRenderTarget(cmd, colorRT, depthRT, cameraContext.Camera.backgroundColor, clearFlag);
// 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(cameraContext.Camera.pixelRect);
}
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
private void RenderObjectsWithError(ref ScriptableRenderContext context, FilterRenderersSettings filterSettings, SortFlags sortFlags, FilterResults visibleRenderers, CameraContext cameraContext)
{
if (m_ErrorMaterial != null)
{
DrawRendererSettings errorSettings = new DrawRendererSettings(cameraContext.Camera, 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(visibleRenderers, ref errorSettings, filterSettings);
}
}
private void AfterTransparent(ref ScriptableRenderContext context, FrameRenderingConfiguration config, CameraContext cameraContext)
{
if (!LightweightUtils.HasFlag(config, FrameRenderingConfiguration.PostProcess))
{
return;
}
CommandBuffer cmd = CommandBufferPool.Get("After Transparent");
m_TextureUtil.RenderPostProcess(cmd, m_TextureUtil.CurrCameraColorRT, BuiltinRenderTextureType.CameraTarget, false, cameraContext.Camera);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
private void RenderTransparents(ref ScriptableRenderContext context, RendererConfiguration config, FilterResults visibleRenderers, CameraContext cameraContext)
{
var transparentSettings = new DrawRendererSettings(cameraContext.Camera, 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(visibleRenderers, ref transparentSettings, transparentFilterSettings);
// Render objects that did not match any shader pass with error shader
RenderObjectsWithError(ref context, transparentFilterSettings, SortFlags.None, visibleRenderers, cameraContext);
}
private void AfterOpaque(ref ScriptableRenderContext context, FrameRenderingConfiguration config, CameraContext cameraContext)
{
if (!m_TextureUtil.RequireDepthTexture)
{
return;
}
CommandBuffer cmd = CommandBufferPool.Get("After Opaque");
cmd.SetGlobalTexture(CameraRenderTargetID.depth, m_DepthRT);
bool setRenderTarget = false;
RenderTargetIdentifier depthRT = m_DepthRT;
var camera = cameraContext.Camera;
// 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_TextureUtil.RequireCopyColor)
{
m_TextureUtil.RenderPostProcess(cmd, m_TextureUtil.CurrCameraColorRT, m_CopyColorRT, true, camera);
cmd.Blit(m_CopyColorRT, m_TextureUtil.CurrCameraColorRT);
}
else
{
m_TextureUtil.RenderPostProcess(cmd, m_TextureUtil.CurrCameraColorRT, m_TextureUtil.CurrCameraColorRT, true, camera);
}
setRenderTarget = true;
m_TextureUtil.SetRenderTarget(cmd, m_TextureUtil.CurrCameraColorRT, m_DepthRT, camera.backgroundColor);
}
if (LightweightUtils.HasFlag(config, FrameRenderingConfiguration.DepthCopy))
{
m_TextureUtil.CopyTexture(cmd, m_DepthRT, m_CopyDepth);
depthRT = m_CopyDepth;
setRenderTarget = true;
}
if (setRenderTarget)
{
m_TextureUtil.SetRenderTarget(cmd, m_TextureUtil.CurrCameraColorRT, depthRT, camera.backgroundColor);
}
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
private void RenderOpaques(ref ScriptableRenderContext context, RendererConfiguration settings, FilterResults visibleRenderers, CameraContext cameraContext)
{
var camera = cameraContext.Camera;
var opaqueDrawSettings = new DrawRendererSettings(camera, 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(visibleRenderers, ref opaqueDrawSettings, opaqueFilterSettings);
// Render objects that did not match any shader pass with error shader
RenderObjectsWithError(ref context, opaqueFilterSettings, SortFlags.None, visibleRenderers, cameraContext);
if (camera.clearFlags == CameraClearFlags.Skybox)
{
context.DrawSkybox(camera);
}
}
private void ForwardPass(List <VisibleLight> visibleLights, FrameRenderingConfiguration frameRenderingConfiguration, ref ScriptableRenderContext context, ref LightData lightData, CameraContext cameraContext, CullResults cullResults)
{
SetupShaderConstants(visibleLights, ref context, ref lightData, ref cullResults);
RendererConfiguration rendererSettings = GetRendererSettings(ref lightData);
BeginForwardRendering(ref context, frameRenderingConfiguration, cameraContext);
RenderOpaques(ref context, rendererSettings, cullResults.visibleRenderers, cameraContext);
AfterOpaque(ref context, frameRenderingConfiguration, cameraContext);
RenderTransparents(ref context, rendererSettings, cullResults.visibleRenderers, cameraContext);
AfterTransparent(ref context, frameRenderingConfiguration, cameraContext);
EndForwardRendering(ref context, frameRenderingConfiguration, cameraContext);
}
void Render(ref ScriptableRenderContext context, CameraContext cameraContext)
{
///
/// culling
///
if (!m_CullingUtil.Cull(ref context, cameraContext, m_ShadowManager.MaxShadowDistance))
{
return;
}
var visibleLights = m_CullingUtil.CullResults.visibleLights;
///
/// setup lights & shadows
///
LightData lightData;
m_LightManager.InitializeLightData(visibleLights, out lightData, cameraContext.Camera);
m_ShadowManager.ShadowPass(visibleLights, ref context, ref lightData,
m_CullingUtil.CullResults, m_LightManager.GetLightUnsortedIndex(lightData.mainLightIndex), cameraContext.Camera.backgroundColor);
///
/// setup
///
var frameRenderingConfiguration = m_TextureUtil.SetupFrameRenderingConfiguration(cameraContext, m_ShadowManager);
m_TextureUtil.SetupIntermediateResources(frameRenderingConfiguration, ref context, cameraContext, m_ColorRT);
// 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(cameraContext.Camera, cameraContext.StereoEnabled);
if (LightweightUtils.HasFlag(frameRenderingConfiguration, FrameRenderingConfiguration.DepthPrePass))
{
DepthPass(ref context, frameRenderingConfiguration, m_CullingUtil.CullResults.visibleRenderers, cameraContext.Camera);
}
if (m_ShadowManager.Shadows)
{
m_ShadowManager.ShadowCollectPass(visibleLights, ref context, ref lightData, frameRenderingConfiguration, cameraContext.Camera);
}
else
{
m_ShadowManager.SmallShadowBuffer(ref context);
}
///
/// forward pass
///
/// * Clear
/// * Opaque
/// * AfterOpaque
/// * Transparent
/// * AfterTransparent
/// * PostEffect
///
ForwardPass(visibleLights, frameRenderingConfiguration, ref context, ref lightData, cameraContext, m_CullingUtil.CullResults);
}
