protected virtual void DrawView(RenderContext context, RenderDrawContext drawContext)
{
var renderSystem = context.RenderSystem;
// Z Prepass
var lightProbes = LightProbes && GBufferRenderStage != null;
if (lightProbes)
{
// Note: Baking lightprobe before GBuffer prepass because we are updating some cbuffer parameters needed by Opaque pass that GBuffer pass might upload early
PrepareLightprobeConstantBuffer(context);
// TODO: Temporarily using ShadowMap shader
using (drawContext.QueryManager.BeginProfile(Color.Green, CompositingProfilingKeys.GBuffer))
using (drawContext.PushRenderTargetsAndRestore())
{
drawContext.CommandList.Clear(drawContext.CommandList.DepthStencilBuffer, DepthStencilClearOptions.DepthBuffer);
drawContext.CommandList.SetRenderTarget(drawContext.CommandList.DepthStencilBuffer, null);
// Draw [main view | z-prepass stage]
renderSystem.Draw(drawContext, context.RenderView, GBufferRenderStage);
}
// Bake lightprobes against Z-buffer
BakeLightProbes(context, drawContext);
}
using (drawContext.PushRenderTargetsAndRestore())
{
// Draw [main view | main stage]
if (OpaqueRenderStage != null)
{
using (drawContext.QueryManager.BeginProfile(Color.Green, CompositingProfilingKeys.Opaque))
{
renderSystem.Draw(drawContext, context.RenderView, OpaqueRenderStage);
}
}
// Draw [main view | transparent stage]
Texture depthStencilSRV = null;
if (TransparentRenderStage != null)
{
// Some transparent shaders will require the depth as a shader resource - resolve it only once and set it here
using (drawContext.QueryManager.BeginProfile(Color.Green, CompositingProfilingKeys.Transparent))
using (drawContext.PushRenderTargetsAndRestore())
{
depthStencilSRV = ResolveDepthAsSRV(drawContext);
renderSystem.Draw(drawContext, context.RenderView, TransparentRenderStage);
}
}
var colorTargetIndex = OpaqueRenderStage?.OutputValidator.Find(typeof(ColorTargetSemantic)) ?? -1;
if (colorTargetIndex == -1)
{
return;
}
// Resolve MSAA targets
var renderTargets = currentRenderTargets;
var depthStencil = currentDepthStencil;
if (actualMultisampleCount != MultisampleCount.None)
{
using (drawContext.QueryManager.BeginProfile(Color.Green, CompositingProfilingKeys.MsaaResolve))
{
ResolveMSAA(drawContext);
}
renderTargets = currentRenderTargetsNonMSAA;
depthStencil = currentDepthStencilNonMSAA;
}
// Shafts if we have them
if (LightShafts != null)
{
using (drawContext.QueryManager.BeginProfile(Color.Green, CompositingProfilingKeys.LightShafts))
{
LightShafts.Draw(drawContext, depthStencil, renderTargets[colorTargetIndex]);
}
}
if (PostEffects != null)
{
// Run post effects
// Note: OpaqueRenderStage can't be null otherwise colorTargetIndex would be -1
PostEffects.Draw(drawContext, OpaqueRenderStage.OutputValidator, renderTargets.Items, depthStencil, ViewOutputTarget);
}
else
{
if (actualMultisampleCount != MultisampleCount.None)
{
using (drawContext.QueryManager.BeginProfile(Color.Green, CompositingProfilingKeys.MsaaResolve))
{
drawContext.CommandList.Copy(renderTargets[colorTargetIndex], ViewOutputTarget);
}
}
}
// Free the depth texture since we won't need it anymore
if (depthStencilSRV != null)
{
drawContext.Resolver.ReleaseDepthStenctilAsShaderResource(depthStencilSRV);
}
}
}
protected override void DrawCore(RenderContext context, RenderDrawContext drawContext)
{
var viewport = drawContext.CommandList.Viewport;
using (drawContext.PushRenderTargetsAndRestore())
{
// Render Shadow maps
shadowMapRenderer?.Draw(drawContext);
if (VRSettings.Enabled && VRSettings.VRDevice != null)
{
var isFullViewport = (int)viewport.X == 0 && (int)viewport.Y == 0 &&
(int)viewport.Width == drawContext.CommandList.RenderTarget.ViewWidth &&
(int)viewport.Height == drawContext.CommandList.RenderTarget.ViewHeight;
if (!isFullViewport)
{
return;
}
bool hasPostEffects = PostEffects != null, presentingVR = this == VRRenderers[VRRenderers.Count - 1];
Texture vrFullSurface;
using (drawContext.PushRenderTargetsAndRestore())
{
var currentRenderTarget = drawContext.CommandList.RenderTarget;
var desiredRenderTargetSize = VRSettings.VRDevice.ActualRenderFrameSize;
if (desiredRenderTargetSize.Width != currentRenderTarget.Width || desiredRenderTargetSize.Height != currentRenderTarget.Height)
{
drawContext.CommandList.SetRenderTargets(null, null); // force to create and bind a new render target
}
PrepareRenderTargets(drawContext, desiredRenderTargetSize);
vrFullSurface = viewOutputTarget;
//draw per eye
using (context.SaveViewportAndRestore())
using (drawContext.PushRenderTargetsAndRestore())
{
ViewCount = 2;
for (var i = 0; i < 2; i++)
{
drawContext.CommandList.SetRenderTargets(currentDepthStencil, currentRenderTargets.Count, currentRenderTargets.Items);
var frameSize = VRSettings.VRDevice.ActualRenderFrameSize;
drawContext.CommandList.SetViewport(new Viewport(i * frameSize.Width / 2, 0, frameSize.Width / 2, frameSize.Height));
using (context.PushRenderViewAndRestore(VRSettings.RenderViews[i]))
{
// Clear render target and depth stencil
if (i == 0)
{
Clear?.Draw(drawContext);
}
ViewIndex = i;
// draw view, but skip post processing (it will not do it, since eye count > 1)
DrawView(context, drawContext, i, 2);
// last eye, draw post effects over both eyes if we have some
if (hasPostEffects && i == 1)
{
if (presentingVR)
{
var renderTargetDescription = TextureDescription.New2D(frameSize.Width, frameSize.Height, 1, PixelFormat.R8G8B8A8_UNorm_SRgb, TextureFlags.ShaderResource | TextureFlags.RenderTarget);
vrFullSurface = PushScopedResource(drawContext.GraphicsContext.Allocator.GetTemporaryTexture2D(renderTargetDescription));
}
PostEffects.Draw(drawContext, OpaqueRenderStage.OutputValidator, currentRenderTargets.Items, currentDepthStencil, vrFullSurface);
}
}
}
if (VRSettings.VRDevice.SupportsOverlays)
{
foreach (var overlay in VRSettings.Overlays)
{
if (overlay != null && overlay.Texture != null)
{
overlay.Overlay.UpdateSurface(drawContext.CommandList, overlay.Texture);
}
}
}
// if we are on our last forward renderer and our scene is ready for submission
if (presentingVR)
{
VRSettings.VRDevice.Commit(drawContext.CommandList, vrFullSurface);
}
}
}
//draw mirror if desired
if (VRSettings.CopyMirror)
{
CopyOrScaleTexture(drawContext, vrFullSurface, drawContext.CommandList.RenderTarget);
}
}
else
{
PrepareRenderTargets(drawContext, new Size2((int)viewport.Width, (int)viewport.Height));
ViewCount = 1;
ViewIndex = 0;
//var sssMaterialIndexRenderTarget = GenerateSSSMaterialIndexRenderTarget(context, viewport);
using (drawContext.PushRenderTargetsAndRestore())
{
drawContext.CommandList.SetRenderTargets(currentDepthStencil, currentRenderTargets.Count, currentRenderTargets.Items);
// Clear render target and depth stencil
Clear?.Draw(drawContext);
DrawView(context, drawContext, 0, 1);
}
}
}
// Clear intermediate results
currentRenderTargets.Clear();
currentRenderTargetsNonMSAA.Clear();
currentDepthStencil = null;
currentDepthStencilNonMSAA = null;
}