GLTF Model: added GetIndexAllocatorIndex method

Author: TheMostDiligent

AssetLoader/interface/GLTFLoader.hpp

@@ -936,11 +936,22 @@ struct Model
             0;
     }
 
+    /// Returns an index of the vertex pool in the resource manager.
+    ///
+    /// \remarks    This index should be passed to the GetVertexPool method of the resource manager.
     Uint32 GetVertexPoolIndex() const
     {
         return VertexData.PoolId;
     }
 
+    /// Returns an index of the index buffer allocator in the resource manager.
+    ///
+    /// \remarks    This index should be passed to the GetIndexBuffer method of the resource manager.
+    Uint32 GetIndexAllocatorIndex() const
+    {
+        return IndexData.AllocatorId;
+    }
+
     struct ImageData
     {
         int Width         = 0;
@@ -1062,7 +1073,8 @@ struct Model
         RefCntAutoPtr<IBuffer>              pBuffer;
         RefCntAutoPtr<IBufferSuballocation> pAllocation;
 
-        Uint32 IndexSize = 0;
+        Uint32 AllocatorId = 0; // Index buffer allocator index
+        Uint32 IndexSize   = 0;
     };
     IndexDataInfo IndexData;
 

AssetLoader/src/GLTFBuilder.cpp

@@ -254,6 +254,9 @@ void ModelBuilder::InitIndexBuffer(IRenderDevice* pDevice)
             auto pBuffInitData = BufferInitData::Create();
             pBuffInitData->Data.emplace_back(std::move(m_IndexData));
             m_Model.IndexData.pAllocation->SetUserData(pBuffInitData);
+
+            m_Model.IndexData.AllocatorId = m_CI.pResourceManager->GetIndexAllocatorIndex(m_Model.IndexData.pAllocation->GetAllocator());
+            VERIFY_EXPR(m_Model.IndexData.AllocatorId != ~0u);
         }
         else
         {