diff --git a/engine/include/XCEngine/RHI/D3D12/D3D12Enum.h b/engine/include/XCEngine/RHI/D3D12/D3D12Enum.h
index f0dd8b03..0484507a 100644
--- a/engine/include/XCEngine/RHI/D3D12/D3D12Enum.h
+++ b/engine/include/XCEngine/RHI/D3D12/D3D12Enum.h
@@ -172,10 +172,20 @@ inline D3D12_RESOURCE_STATES ToD3D12(ResourceStates state) {
         case ResourceStates::CopySrc: return D3D12_RESOURCE_STATE_COPY_SOURCE;
         case ResourceStates::CopyDst: return D3D12_RESOURCE_STATE_COPY_DEST;
         case ResourceStates::Present: return D3D12_RESOURCE_STATE_PRESENT;
+        case ResourceStates::GenericRead: return D3D12_RESOURCE_STATE_GENERIC_READ;
     }
     return D3D12_RESOURCE_STATE_COMMON;
 }
 
+inline D3D12_HEAP_TYPE ToD3D12(HeapType type) {
+    switch (type) {
+        case HeapType::Default: return D3D12_HEAP_TYPE_DEFAULT;
+        case HeapType::Upload: return D3D12_HEAP_TYPE_UPLOAD;
+        case HeapType::Readback: return D3D12_HEAP_TYPE_READBACK;
+    }
+    return D3D12_HEAP_TYPE_DEFAULT;
+}
+
 inline D3D12_PRIMITIVE_TOPOLOGY_TYPE ToD3D12(PrimitiveTopology topology) {
     switch (topology) {
         case PrimitiveTopology::PointList: return D3D12_PRIMITIVE_TOPOLOGY_TYPE_POINT;
diff --git a/engine/include/XCEngine/RHI/Enums.h b/engine/include/XCEngine/RHI/Enums.h
index 8d4b2484..f0b0917a 100644
--- a/engine/include/XCEngine/RHI/Enums.h
+++ b/engine/include/XCEngine/RHI/Enums.h
@@ -280,7 +280,15 @@ enum class ResourceStates : uint32_t {
     PixelShaderResource,
     CopySrc,
     CopyDst,
-    Present
+    Present,
+    GenericRead
+};
+
+enum class HeapType : uint8_t {
+    Default,
+    Upload,
+    Readback,
+    Custom
 };
 
 } // namespace RHI