Do not remove patch_buffers at MTCommandList::Close

Author: andrejnau

src/FlyCube/CommandList/MTCommandList.h

@@ -123,6 +123,7 @@ class MTCommandList : public CommandList {
     MTDevice& device_;
     id<MTL4CommandAllocator> allocator_ = nullptr;
     id<MTL4CommandBuffer> command_buffer_ = nullptr;
+    std::vector<id<MTLBuffer>> patch_buffers_;
 
     static constexpr MTLStages kRenderStages = MTLStageVertex | MTLStageObject | MTLStageMesh | MTLStageFragment;
     static constexpr MTLStages kComputeStages = MTLStageDispatch | MTLStageBlit | MTLStageAccelerationStructure;
@@ -143,7 +144,6 @@ class MTCommandList : public CommandList {
         std::shared_ptr<MTBindingSet> binding_set;
         std::map<ShaderType, id<MTL4ArgumentTable>> argument_tables;
         id<MTLResidencySet> residency_set = nullptr;
-        std::vector<id<MTLBuffer>> patch_buffers;
         bool need_apply_pipeline = false;
         bool need_apply_binding_set = false;
         MTLStages render_barrier_after_stages = MTLStageAll;

src/FlyCube/CommandList/MTCommandList.mm

@@ -597,7 +597,7 @@ MTLStages ResourceStateToMTLStages(ResourceState state)
     acceleration_structure_desc.instanceDescriptorBuffer =
         MTL4BufferRangeMake(patched_instance_data.gpuAddress, patched_instance_data.length);
     acceleration_structure_desc.instanceDescriptorType = MTLAccelerationStructureInstanceDescriptorTypeIndirect;
-    state_->patch_buffers.push_back(patched_instance_data);
+    patch_buffers_.push_back(patched_instance_data);
 
     decltype(auto) mt_dst = dst->As<MTResource>();
     decltype(auto) mt_scratch = scratch->As<MTResource>();