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Add support for rendering percentage scale with upscaling to backbuffer

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This commit is contained in:
Wojtek Figat
2021-07-20 11:06:25 +02:00
parent 5cbf091a7a
commit 929bd2a8c8
11 changed files with 129 additions and 54 deletions
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2
Source/Engine/Graphics/RenderBuffers.cpp
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@@ -90,7 +90,7 @@ GPUTexture* RenderBuffers::RequestHalfResDepth(GPUContext* context)
}
// Generate depth
MultiScaler::Instance()->DownscaleDepth(context, halfDepthWidth, halfDepthHeight, DepthBuffer->View(), HalfResDepth->View());
MultiScaler::Instance()->DownscaleDepth(context, halfDepthWidth, halfDepthHeight, DepthBuffer, HalfResDepth->View());
return HalfResDepth;
}

28
Source/Engine/Graphics/RenderTask.cpp
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@@ -296,13 +296,27 @@ void SceneRenderTask::OnPostRender(GPUContext* context, RenderContext& renderCon
Viewport SceneRenderTask::GetViewport() const
{
Viewport viewport;
if (Output)
viewport = Viewport(0, 0, static_cast<float>(Output->Width()), static_cast<float>(Output->Height()));
else if (SwapChain)
viewport = Viewport(0, 0, static_cast<float>(SwapChain->GetWidth()), static_cast<float>(SwapChain->GetHeight()));
else if (Buffers != nullptr)
viewport = Buffers->GetViewport();
else
viewport = Viewport(0, 0, 1280, 720);
viewport.Width *= RenderingPercentage;
viewport.Height *= RenderingPercentage;
return viewport;
}
Viewport SceneRenderTask::GetOutputViewport() const
{
if (Output && Output->IsAllocated())
return Viewport(0, 0, static_cast<float>(Output->Width()), static_cast<float>(Output->Height()));
if (SwapChain)
return Viewport(0, 0, static_cast<float>(SwapChain->GetWidth()), static_cast<float>(SwapChain->GetHeight()));
if (Buffers != nullptr)
return Buffers->GetViewport();
return Viewport(0, 0, 1280, 720);
return GetViewport();
}
GPUTextureView* SceneRenderTask::GetOutputView() const
@@ -352,11 +366,11 @@ void SceneRenderTask::OnBegin(GPUContext* context)
// Setup render buffers for the output rendering resolution
if (Output)
{
Buffers->Init(Output->Width(), Output->Height());
Buffers->Init((int32)((float)Output->Width() * RenderingPercentage), (int32)((float)Output->Height() * RenderingPercentage));
}
else if (SwapChain)
{
Buffers->Init(SwapChain->GetWidth(), SwapChain->GetHeight());
Buffers->Init((int32)((float)SwapChain->GetWidth() * RenderingPercentage), (int32)((float)SwapChain->GetHeight() * RenderingPercentage));
}
}
@@ -385,7 +399,7 @@ bool SceneRenderTask::Resize(int32 width, int32 height)
{
if (Output && Output->Resize(width, height))
return true;
if (Buffers && Buffers->Init(width, height))
if (Buffers && Buffers->Init((int32)((float)width * RenderingPercentage), (int32)((float)height * RenderingPercentage)))
return true;
return false;
}
@@ -423,7 +437,7 @@ void MainRenderTask::OnBegin(GPUContext* context)
#if !USE_EDITOR
// Sync render buffers size with the backbuffer
const auto size = Screen::GetSize();
Buffers->Init((int32)size.X, (int32)size.Y);
Buffers->Init((int32)(size.X * RenderingPercentage), (int32)(size.Y * RenderingPercentage));
#endif
SceneRenderTask::OnBegin(context);

12
Source/Engine/Graphics/RenderTask.h
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@@ -263,6 +263,11 @@ public:
/// </summary>
API_FIELD() ActorsSources ActorsSource = ActorsSources::Scenes;
/// <summary>
/// The scale of the rendering resolution relative to the output dimensions. If lower than 1 the scene and postprocessing will be rendered at a lower resolution and upscaled to the output backbuffer.
/// </summary>
API_FIELD() float RenderingPercentage = 1.0f;
/// <summary>
/// The custom set of actors to render.
/// </summary>
@@ -336,10 +341,15 @@ public:
public:
/// <summary>
/// Gets the rendering render task viewport.
/// Gets the rendering render task viewport (before upsampling).
/// </summary>
API_PROPERTY() Viewport GetViewport() const;
/// <summary>
/// Gets the rendering output viewport (after upsampling).
/// </summary>
API_PROPERTY() Viewport GetOutputViewport() const;
/// <summary>
/// Gets the rendering output view.
/// </summary>