public CustomRenderPipeline(CustomRenderPipelineAsset asset)
{
m_Asset = asset;
SceneViewUtil.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");
CameraRenderTargetID.color = Shader.PropertyToID("_CameraColorRT");
CameraRenderTargetID.copyColor = Shader.PropertyToID("_CameraCopyColorRT");
CameraRenderTargetID.depth = Shader.PropertyToID("_CameraDepthTexture");
CameraRenderTargetID.depthCopy = Shader.PropertyToID("_CameraCopyDepthTexture");
m_ColorRT = new RenderTargetIdentifier(CameraRenderTargetID.color);
m_CopyColorRT = new RenderTargetIdentifier(CameraRenderTargetID.copyColor);
m_DepthRT = new RenderTargetIdentifier(CameraRenderTargetID.depth);
m_CopyDepth = new RenderTargetIdentifier(CameraRenderTargetID.depthCopy);
// 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_ErrorMaterial = CoreUtils.CreateEngineMaterial("Hidden/InternalErrorShader");
m_LightManager = new LightManager(asset);
m_ShadowManager = new ShadowManager(asset);
m_TextureUtil = new TextureUtil(asset);
m_CullingUtil = new CullingUtil();
}
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);
}