public static void Start(ref ScriptableRenderContext context, FrameRenderingConfiguration renderingConfiguration, Camera currentCamera)
{
if (LightweightUtils.HasFlag(renderingConfiguration, FrameRenderingConfiguration.Stereo))
{
context.StartMultiEye(currentCamera);
}
}
public void Blit(ScriptableRenderContext context, RenderTargetIdentifier currCameraColorRT, FrameRenderingConfiguration renderingConfig, Camera camera)
{
var cmd = CommandBufferPool.Get("Blit");
if (m_IntermediateTextureArray)
{
cmd.Blit(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, currCameraColorRT, BuiltinRenderTextureType.CameraTarget, camera, blitMaterial);
}
}
SetRenderTarget(cmd, BuiltinRenderTextureType.CameraTarget, camera.backgroundColor);
context.ExecuteCommandBuffer(cmd);
CommandBufferPool.Release(cmd);
}
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);
}
}
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 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 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);
}
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);
}
}
void Blit(CommandBuffer cmd, FrameRenderingConfiguration renderingConfig, RenderTargetIdentifier sourceRT, RenderTargetIdentifier destRT, Camera camera, 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, camera.backgroundColor);
cmd.SetViewProjectionMatrices(Matrix4x4.identity, Matrix4x4.identity);
cmd.SetViewport(camera.pixelRect);
cmd.DrawMesh(m_BlitQuad, Matrix4x4.identity, material);
}
}
public void ShadowCollectPass(List <VisibleLight> visibleLights, ref ScriptableRenderContext context, ref LightData lightData, FrameRenderingConfiguration frameRenderingConfiguration,
Camera currentCamera)
{
if (!m_ShadowSettings.screenSpace)
{
return;
}
CommandBuffer cmd = CommandBufferPool.Get("Collect Shadows");
SetShadowCollectPassKeywords(cmd, visibleLights[lightData.mainLightIndex], ref lightData);
// TODO: Support RenderScale for the SSSM target. Should probably move allocation elsewhere, or at
// least propogate RenderTextureDescriptor generation
if (LightweightUtils.HasFlag(frameRenderingConfiguration, FrameRenderingConfiguration.Stereo))
{
var desc = XRSettings.eyeTextureDesc;
desc.depthBufferBits = 0;
desc.colorFormat = m_ShadowSettings.screenspaceShadowmapTextureFormat;
cmd.GetTemporaryRT(m_ScreenSpaceShadowMapRTID, desc, FilterMode.Bilinear);
}
else
{
cmd.GetTemporaryRT(m_ScreenSpaceShadowMapRTID, currentCamera.pixelWidth, currentCamera.pixelHeight, 0, FilterMode.Bilinear, m_ShadowSettings.screenspaceShadowmapTextureFormat);
}
// 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.Blit(m_ScreenSpaceShadowMapRT, m_ScreenSpaceShadowMapRT, m_ScreenSpaceShadowsMaterial);
StereoRendering.Start(ref context, frameRenderingConfiguration, currentCamera);
context.ExecuteCommandBuffer(cmd);
StereoRendering.Stop(ref context, frameRenderingConfiguration, currentCamera);
CommandBufferPool.Release(cmd);
}
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);
}