GoaLitiuM/FlaxEngine
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Refactor scene rendering to use batched culling for main view and shadow projections

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This commit is contained in:
Wojtek Figat
2022-10-28 09:13:28 +02:00
parent e217d5e79b
commit eb52d333ae
44 changed files with 1064 additions and 514 deletions
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72
Source/Engine/Renderer/Renderer.cpp
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@@ -60,7 +60,7 @@ public:
RendererService RendererServiceInstance;
void RenderInner(SceneRenderTask* task, RenderContext& renderContext);
void RenderInner(SceneRenderTask* task, RenderContext& renderContext, RenderContextBatch& renderContextBatch);
bool RendererService::Init()
{
@@ -165,15 +165,18 @@ void Renderer::Render(SceneRenderTask* task)
{
PROFILE_GPU_CPU_NAMED("Render Frame");
// Prepare GPU context
auto context = GPUDevice::Instance->GetMainContext();
context->ClearState();
context->FlushState();
const Viewport viewport = task->GetViewport();
context->SetViewportAndScissors(viewport);
// Prepare
// Prepare render context
RenderContext renderContext(task);
renderContext.List = RenderList::GetFromPool();
RenderContextBatch renderContextBatch(task);
renderContextBatch.Contexts.Add(renderContext);
#if USE_EDITOR
// Turn on low quality rendering during baking lightmaps (leave more GPU power for baking)
@@ -204,7 +207,7 @@ void Renderer::Render(SceneRenderTask* task)
// Perform the actual rendering
task->OnPreRender(context, renderContext);
RenderInner(task, renderContext);
RenderInner(task, renderContext, renderContextBatch);
task->OnPostRender(context, renderContext);
#if USE_EDITOR
@@ -216,10 +219,11 @@ void Renderer::Render(SceneRenderTask* task)
task->View = renderContext.View;
// Cleanup
RenderList::ReturnToPool(renderContext.List);
for (const auto& e : renderContextBatch.Contexts)
RenderList::ReturnToPool(e.List);
}
bool Renderer::NeedMotionVectors(RenderContext& renderContext)
bool Renderer::NeedMotionVectors(const RenderContext& renderContext)
{
const int32 screenWidth = renderContext.Buffers->GetWidth();
const int32 screenHeight = renderContext.Buffers->GetHeight();
@@ -255,7 +259,8 @@ void Renderer::DrawSceneDepth(GPUContext* context, SceneRenderTask* task, GPUTex
else
{
// Draw scene actors
Level::DrawActors(renderContext);
RenderContextBatch renderContextBatch(renderContext);
Level::DrawActors(renderContextBatch);
}
// Sort draw calls
@@ -290,7 +295,7 @@ void Renderer::DrawPostFxMaterial(GPUContext* context, const RenderContext& rend
context->ResetRenderTarget();
}
void RenderInner(SceneRenderTask* task, RenderContext& renderContext)
void RenderInner(SceneRenderTask* task, RenderContext& renderContext, RenderContextBatch& renderContextBatch)
{
auto context = GPUDevice::Instance->GetMainContext();
auto* graphicsSettings = GraphicsSettings::Get();
@@ -316,17 +321,47 @@ void RenderInner(SceneRenderTask* task, RenderContext& renderContext)
renderContext.List->PostFx.Add(&postFx);
}
// Collect renderable objects and construct draw call list
view.Pass = DrawPass::GBuffer | DrawPass::Forward | DrawPass::Distortion;
if (Renderer::NeedMotionVectors(renderContext))
view.Pass |= DrawPass::MotionVectors;
task->OnCollectDrawCalls(renderContext);
// Build batch of render contexts (main view and shadow projections)
const bool isGBufferDebug = GBufferPass::IsDebugView(renderContext.View.Mode);
{
PROFILE_CPU_NAMED("Collect Draw Calls");
view.Pass = DrawPass::GBuffer | DrawPass::Forward | DrawPass::Distortion;
if (Renderer::NeedMotionVectors(renderContext))
view.Pass |= DrawPass::MotionVectors;
renderContextBatch.GetMainContext() = renderContext; // Sync render context in batch with the current value
bool drawShadows = !isGBufferDebug && ((view.Flags & ViewFlags::Shadows) != 0) && ShadowsPass::Instance()->IsReady();
switch (renderContext.View.Mode)
{
case ViewMode::QuadOverdraw:
case ViewMode::Emissive:
case ViewMode::LightmapUVsDensity:
case ViewMode::GlobalSurfaceAtlas:
case ViewMode::GlobalSDF:
case ViewMode::MaterialComplexity:
drawShadows = false;
break;
}
if (drawShadows)
ShadowsPass::Instance()->SetupShadows(renderContext, renderContextBatch);
task->OnCollectDrawCalls(renderContextBatch);
}
// Sort draw calls
renderContext.List->SortDrawCalls(renderContext, false, DrawCallsListType::GBuffer);
renderContext.List->SortDrawCalls(renderContext, false, DrawCallsListType::GBufferNoDecals);
renderContext.List->SortDrawCalls(renderContext, true, DrawCallsListType::Forward);
renderContext.List->SortDrawCalls(renderContext, false, DrawCallsListType::Distortion);
{
PROFILE_CPU_NAMED("Sort Draw Calls");
renderContext.List->SortDrawCalls(renderContext, false, DrawCallsListType::GBuffer);
renderContext.List->SortDrawCalls(renderContext, false, DrawCallsListType::GBufferNoDecals);
renderContext.List->SortDrawCalls(renderContext, true, DrawCallsListType::Forward);
renderContext.List->SortDrawCalls(renderContext, false, DrawCallsListType::Distortion);
for (int32 i = 1; i < renderContextBatch.Contexts.Count(); i++)
{
auto& shadowContext = renderContextBatch.Contexts[i];
shadowContext.List->SortDrawCalls(shadowContext, false, DrawCallsListType::Depth);
}
}
// Get the light accumulation buffer
auto outputFormat = renderContext.Buffers->GetOutputFormat();
@@ -389,7 +424,7 @@ void RenderInner(SceneRenderTask* task, RenderContext& renderContext)
AmbientOcclusionPass::Instance()->Render(renderContext);
// Check if use custom view mode
if (GBufferPass::IsDebugView(renderContext.View.Mode))
if (isGBufferDebug)
{
context->ResetRenderTarget();
context->SetRenderTarget(task->GetOutputView());
@@ -400,7 +435,8 @@ void RenderInner(SceneRenderTask* task, RenderContext& renderContext)
}
// Render lighting
LightPass::Instance()->RenderLight(renderContext, *lightBuffer);
renderContextBatch.GetMainContext() = renderContext; // Sync render context in batch with the current value
LightPass::Instance()->RenderLight(renderContextBatch, *lightBuffer);
if (renderContext.View.Flags & ViewFlags::GI)
{
switch (renderContext.List->Settings.GlobalIllumination.Mode)