Improving performance, but breaking vertex buffers

src/Engine/Graphics/RenderPass/BasePass.cpp

@@ -41,7 +41,18 @@ void BasePassMeshProcessor::addMeshBatch(
         descriptorSet->writeChanges();
         cachedPrimitiveSets.add(descriptorSet);
     }
-    Gfx::PRenderCommand renderCommand = graphics->createRenderCommand();
+    Gfx::PRenderCommand renderCommand;
+    if (cachedCommandBuffers.size() > 0)
+    {
+        renderCommand = cachedCommandBuffers.back();
+        cachedCommandBuffers.pop();
+        renderCommand->begin();
+    }
+    else
+    {
+        renderCommand = graphics->createRenderCommand();
+        renderCommand->begin();
+    }
     renderCommand->setViewport(target);
     for(uint32 i = 0; i < batch.elements.size(); ++i)
     {
@@ -72,6 +83,7 @@ Array<Gfx::PRenderCommand> BasePassMeshProcessor::getRenderCommands()
 
 void BasePassMeshProcessor::clearCommands()
 {
+    cachedCommandBuffers = renderCommands;
     renderCommands.clear();
     cachedPrimitiveSets.clear();
     cachedPrimitiveIndex = 0;

src/Engine/Graphics/RenderPass/BasePass.h

@@ -22,6 +22,7 @@ public:
     void clearCommands();
 private:
     Array<Gfx::PRenderCommand> renderCommands;
+    Array<Gfx::PRenderCommand> cachedCommandBuffers;
     Array<Gfx::PDescriptorSet> cachedPrimitiveSets;
     uint32 cachedPrimitiveIndex;
     Gfx::PViewport target;