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Graphics/Widgets: Add support for scissoring

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This commit is contained in:
Jérôme Leclercq
2021-12-01 20:26:33 +01:00
parent a483e16e15
commit 61779d1cad
21 changed files with 137 additions and 35 deletions
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29
src/Nazara/Graphics/SubmeshRenderer.cpp
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@@ -27,12 +27,15 @@ namespace Nz
auto& data = static_cast<SubmeshRendererData&>(rendererData);
Recti invalidScissorBox(-1, -1, -1, -1);
const AbstractBuffer* currentIndexBuffer = nullptr;
const AbstractBuffer* currentVertexBuffer = nullptr;
const MaterialPass* currentMaterialPass = nullptr;
const RenderPipeline* currentPipeline = nullptr;
const ShaderBinding* currentShaderBinding = nullptr;
const WorldInstance* currentWorldInstance = nullptr;
Recti currentScissorBox = invalidScissorBox;
auto FlushDrawCall = [&]()
{
@@ -86,6 +89,14 @@ namespace Nz
currentWorldInstance = worldInstance;
}
const Recti& scissorBox = submesh.GetScissorBox();
const Recti& targetScissorBox = (scissorBox.width >= 0) ? scissorBox : invalidScissorBox;
if (currentScissorBox != targetScissorBox)
{
FlushDrawData();
currentScissorBox = targetScissorBox;
}
if (!currentShaderBinding)
{
m_bindingCache.clear();
@@ -140,19 +151,24 @@ namespace Nz
drawCall.indexBuffer = currentIndexBuffer;
drawCall.indexCount = submesh.GetIndexCount();
drawCall.renderPipeline = currentPipeline;
drawCall.scissorBox = currentScissorBox;
drawCall.shaderBinding = currentShaderBinding;
drawCall.vertexBuffer = currentVertexBuffer;
}
}
void SubmeshRenderer::Render(const ViewerInstance& /*viewerInstance*/, ElementRendererData& rendererData, CommandBufferBuilder& commandBuffer, const Pointer<const RenderElement>* /*elements*/, std::size_t /*elementCount*/)
void SubmeshRenderer::Render(const ViewerInstance& viewerInstance, ElementRendererData& rendererData, CommandBufferBuilder& commandBuffer, const Pointer<const RenderElement>* /*elements*/, std::size_t /*elementCount*/)
{
auto& data = static_cast<SubmeshRendererData&>(rendererData);
Vector2f targetSize = viewerInstance.GetTargetSize();
Recti fullscreenScissorBox(0, 0, SafeCast<int>(std::floor(targetSize.x)), SafeCast<int>(std::floor(targetSize.y)));
const AbstractBuffer* currentIndexBuffer = nullptr;
const AbstractBuffer* currentVertexBuffer = nullptr;
const RenderPipeline* currentPipeline = nullptr;
const ShaderBinding* currentShaderBinding = nullptr;
Recti currentScissorBox(-1, -1, -1, -1);
for (const auto& drawData : data.drawCalls)
{
@@ -180,10 +196,17 @@ namespace Nz
currentVertexBuffer = drawData.vertexBuffer;
}
const Recti& targetScissorBox = (drawData.scissorBox.width >= 0) ? drawData.scissorBox : fullscreenScissorBox;
if (currentScissorBox != targetScissorBox)
{
commandBuffer.SetScissor(targetScissorBox);
currentScissorBox = targetScissorBox;
}
if (currentIndexBuffer)
commandBuffer.DrawIndexed(drawData.indexCount);
commandBuffer.DrawIndexed(SafeCast<UInt32>(drawData.indexCount));
else
commandBuffer.Draw(drawData.indexCount);
commandBuffer.Draw(SafeCast<UInt32>(drawData.indexCount));
}
}