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destrum/src/Graphics/Renderer.cpp

@@ -28,6 +28,7 @@ void GameRenderer::init(GfxDevice& gfxDevice, const glm::ivec2& drawImageSize) {
 }
 
 void GameRenderer::beginDrawing(GfxDevice& gfxDevice) {
+    flushMaterialUpdates(gfxDevice);
     meshDrawCommands.clear();
 }
 
@@ -47,8 +48,13 @@ void GameRenderer::draw(VkCommandBuffer cmd, GfxDevice& gfxDevice, const Camera&
         .fogDensity = sceneData.fogDensity,
         .materialsBuffer = materialCache.getMaterialDataBufferAddress(),
     };
-    sceneDataBuffer.uploadNewData(
-           cmd, gfxDevice.getCurrentFrameIndex(), (void*)&gpuSceneData, sizeof(GPUSceneData));
+    vkutil::bufferHostWriteToShaderReadBarrier(
+       cmd,
+       materialCache.getMaterialDataBuffer().buffer,
+       0,
+       VK_WHOLE_SIZE
+   );
+    sceneDataBuffer.uploadNewData(cmd, gfxDevice.getCurrentFrameIndex(), (void*)&gpuSceneData, sizeof(GPUSceneData));
 
     const auto& drawImage = gfxDevice.getImage(drawImageId);
     const auto& depthImage = gfxDevice.getImage(depthImageId);
@@ -122,7 +128,7 @@ Material& GameRenderer::getMaterialMutable(MaterialID id) {
 
 void GameRenderer::updateMaterialGPU(MaterialID id) {
     assert(id != NULL_MATERIAL_ID);
-    materialCache.updateMaterialGPU(GameState::GetInstance().Gfx(), id);
+    pendingMaterialUploads.push_back(id);
 }
 
 void GameRenderer::setSkyboxTexture(ImageID skyboxImageId) {
@@ -130,6 +136,14 @@ void GameRenderer::setSkyboxTexture(ImageID skyboxImageId) {
     skyboxPipeline->setSkyboxImage(skyboxImageId);
 }
 
+void GameRenderer::flushMaterialUpdates(GfxDevice& gfxDevice) {
+    for (MaterialID id : pendingMaterialUploads) {
+        materialCache.updateMaterialGPU(gfxDevice, id);
+        // if non-coherent: flush mapped range for that id here
+    }
+    pendingMaterialUploads.clear();
+}
+
 void GameRenderer::createDrawImage(GfxDevice& gfxDevice,
                                    const glm::ivec2& drawImageSize,
                                    bool firstCreate)