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Merge remote-tracking branch 'origin/gi' into large-worlds

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# Conflicts:
#	Source/Engine/Graphics/PostProcessSettings.cpp
#	Source/Engine/Level/Actors/SkyLight.cpp
#	Source/Engine/Renderer/GBufferPass.cpp
#	Source/Engine/Renderer/GI/GlobalSurfaceAtlasPass.cpp
#	Source/Engine/Renderer/GlobalSignDistanceFieldPass.cpp
#	Source/Engine/Renderer/GlobalSignDistanceFieldPass.h
#	Source/Engine/Renderer/RenderList.h
This commit is contained in:
Wojtek Figat
2022-06-13 00:46:33 +02:00
parent bc65057eb7 d4839b9c78
commit e43515f653
53 changed files with 2309 additions and 218 deletions
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96
Source/Engine/Renderer/GBufferPass.cpp
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@@ -14,10 +14,12 @@
#include "Engine/Graphics/Shaders/GPUShader.h"
#include "Engine/Graphics/RenderTask.h"
#include "Engine/Graphics/RenderBuffers.h"
#include "Engine/Graphics/RenderTargetPool.h"
#include "Engine/Content/Assets/Shader.h"
#include "Engine/Content/Content.h"
#include "Engine/Content/Assets/Model.h"
#include "Engine/Level/Actors/Decal.h"
#include "Engine/Engine/Engine.h"
PACK_STRUCT(struct GBufferPassData{
GBufferData GBuffer;
@@ -144,7 +146,6 @@ void GBufferPass::Fill(RenderContext& renderContext, GPUTextureView* lightBuffer
// Cache data
auto device = GPUDevice::Instance;
auto context = device->GetMainContext();
auto& view = renderContext.View;
GPUTextureView* targetBuffers[5] =
{
lightBuffer,
@@ -153,7 +154,7 @@ void GBufferPass::Fill(RenderContext& renderContext, GPUTextureView* lightBuffer
renderContext.Buffers->GBuffer2->View(),
renderContext.Buffers->GBuffer3->View(),
};
view.Pass = DrawPass::GBuffer;
renderContext.View.Pass = DrawPass::GBuffer;
// Clear GBuffer
{
@@ -222,20 +223,7 @@ void GBufferPass::Fill(RenderContext& renderContext, GPUTextureView* lightBuffer
if (renderContext.List->Sky && _skyModel && _skyModel->CanBeRendered())
{
PROFILE_GPU_CPU("Sky");
// Cache data
auto model = _skyModel.Get();
auto box = model->GetBox();
// Calculate sphere model transform to cover far plane
Matrix m1, m2;
Matrix::Scaling(view.Far / ((float)box.GetSize().Y * 0.5f) * 0.95f, m1); // Scale to fit whole view frustum
Matrix::CreateWorld(view.Position, Float3::Up, Float3::Backward, m2); // Rotate sphere model
m1 *= m2;
// Draw sky
renderContext.List->Sky->ApplySky(context, renderContext, m1);
model->Render(context);
DrawSky(renderContext, context);
}
context->ResetRenderTarget();
@@ -280,6 +268,65 @@ void GBufferPass::RenderDebug(RenderContext& renderContext)
context->ResetSR();
}
// Custom render buffer for realtime skybox capturing (eg. used by GI).
class SkyboxCustomBuffer : public RenderBuffers::CustomBuffer
{
public:
uint64 LastCaptureFrame = 0;
GPUTexture* Skybox = nullptr;
~SkyboxCustomBuffer()
{
RenderTargetPool::Release(Skybox);
}
};
GPUTextureView* GBufferPass::RenderSkybox(RenderContext& renderContext, GPUContext* context)
{
GPUTextureView* result = nullptr;
if (renderContext.List->Sky && _skyModel && _skyModel->CanBeRendered())
{
// Initialize skybox texture
auto& skyboxData = *renderContext.Buffers->GetCustomBuffer<SkyboxCustomBuffer>(TEXT("Skybox"));
bool dirty = false;
const int32 resolution = 16;
if (!skyboxData.Skybox)
{
const auto desc = GPUTextureDescription::NewCube(resolution, PixelFormat::R11G11B10_Float);
skyboxData.Skybox = RenderTargetPool::Get(desc);
if (!skyboxData.Skybox)
return nullptr;
dirty = true;
}
// Redraw sky from time-to-time (dynamic skies can be animated, static skies can have textures streamed)
const uint32 redrawFramesCount = renderContext.List->Sky->IsDynamicSky() ? 4 : 240;
if (Engine::FrameCount - skyboxData.LastCaptureFrame >= redrawFramesCount)
dirty = true;
if (dirty)
{
PROFILE_GPU_CPU("Skybox");
skyboxData.LastCaptureFrame = Engine::FrameCount;
const RenderView originalView = renderContext.View;
renderContext.View.Pass = DrawPass::GBuffer;
renderContext.View.SetUpCube(10.0f, 10000.0f, originalView.Position);
for (int32 faceIndex = 0; faceIndex < 6; faceIndex++)
{
renderContext.View.SetFace(faceIndex);
context->SetRenderTarget(skyboxData.Skybox->View(faceIndex));
context->SetViewportAndScissors(resolution, resolution);
DrawSky(renderContext, context);
}
renderContext.View = originalView;
context->ResetRenderTarget();
}
result = skyboxData.Skybox->ViewArray();
}
return result;
}
#if USE_EDITOR
void GBufferPass::DrawMaterialComplexity(RenderContext& renderContext, GPUContext* context, GPUTextureView* lightBuffer)
@@ -326,6 +373,23 @@ void GBufferPass::SetInputs(const RenderView& view, GBufferData& gBuffer)
Matrix::Transpose(view.IP, gBuffer.InvProjectionMatrix);
}
void GBufferPass::DrawSky(RenderContext& renderContext, GPUContext* context)
{
// Cache data
auto model = _skyModel.Get();
auto box = model->GetBox();
// Calculate sphere model transform to cover far plane
Matrix m1, m2;
Matrix::Scaling(renderContext.View.Far / (box.GetSize().Y * 0.5f) * 0.95f, m1); // Scale to fit whole view frustum
Matrix::CreateWorld(renderContext.View.Position, Float3::Up, Float3::Backward, m2); // Rotate sphere model
m1 *= m2;
// Draw sky
renderContext.List->Sky->ApplySky(context, renderContext, m1);
model->Render(context);
}
void GBufferPass::DrawDecals(RenderContext& renderContext, GPUTextureView* lightBuffer)
{
// Skip if no decals to render