diff --git a/Source/Engine/Graphics/GPUBufferDescription.h b/Source/Engine/Graphics/GPUBufferDescription.h
index e93541d7a..d4049ea5b 100644
--- a/Source/Engine/Graphics/GPUBufferDescription.h
+++ b/Source/Engine/Graphics/GPUBufferDescription.h
@@ -182,7 +182,7 @@ public:
     /// <param name="elementsCount">The elements count.</param>
     /// <param name="data">The data.</param>
     /// <returns>The buffer description.</returns>
-    static GPUBufferDescription Vertex(int32 elementStride, int32 elementsCount, void* data)
+    static GPUBufferDescription Vertex(int32 elementStride, int32 elementsCount, const void* data)
     {
         return Buffer(elementsCount * elementStride, GPUBufferFlags::VertexBuffer, PixelFormat::Unknown, data, elementStride, GPUResourceUsage::Default);
     }
@@ -217,7 +217,7 @@ public:
     /// <param name="elementsCount">The elements count.</param>
     /// <param name="data">The data.</param>
     /// <returns>The buffer description.</returns>
-    static GPUBufferDescription Index(int32 elementStride, int32 elementsCount, void* data)
+    static GPUBufferDescription Index(int32 elementStride, int32 elementsCount, const void* data)
     {
         const auto format = elementStride == 4 ? PixelFormat::R32_UInt : PixelFormat::R16_UInt;
         return Buffer(elementsCount * elementStride, GPUBufferFlags::IndexBuffer, format, data, elementStride, GPUResourceUsage::Default);
diff --git a/Source/Engine/Graphics/Models/Mesh.cpp b/Source/Engine/Graphics/Models/Mesh.cpp
index 8aa090325..567dbeba6 100644
--- a/Source/Engine/Graphics/Models/Mesh.cpp
+++ b/Source/Engine/Graphics/Models/Mesh.cpp
@@ -24,7 +24,7 @@
 namespace
 {
     template<typename IndexType>
-    bool UpdateMesh(Mesh* mesh, uint32 vertexCount, uint32 triangleCount, Float3* vertices, IndexType* triangles, Float3* normals, Float3* tangents, Float2* uvs, Color32* colors)
+    bool UpdateMesh(Mesh* mesh, uint32 vertexCount, uint32 triangleCount, const Float3* vertices, const IndexType* triangles, const Float3* normals, const Float3* tangents, const Float2* uvs, const Color32* colors)
     {
         auto model = mesh->GetModel();
         CHECK_RETURN(model && model->IsVirtual(), true);
@@ -63,40 +63,39 @@ namespace
             const auto t = Float1010102(Float3::UnitX);
             for (uint32 i = 0; i < vertexCount; i++)
             {
-                vb1[i].Normal = n;
-                vb1[i].Tangent = t;
+                vb1.Get()[i].Normal = n;
+                vb1.Get()[i].Tangent = t;
             }
         }
         if (uvs)
         {
             for (uint32 i = 0; i < vertexCount; i++)
-                vb1[i].TexCoord = Half2(uvs[i]);
+                vb1.Get()[i].TexCoord = Half2(uvs[i]);
         }
         else
         {
             auto v = Half2::Zero;
             for (uint32 i = 0; i < vertexCount; i++)
-                vb1[i].TexCoord = v;
+                vb1.Get()[i].TexCoord = v;
         }
         {
             auto v = Half2::Zero;
             for (uint32 i = 0; i < vertexCount; i++)
-                vb1[i].LightmapUVs = v;
+                vb1.Get()[i].LightmapUVs = v;
         }
         if (colors)
         {
             vb2.Resize(vertexCount);
             for (uint32 i = 0; i < vertexCount; i++)
-                vb2[i].Color = colors[i];
+                vb2.Get()[i].Color = colors[i];
         }
 
         return mesh->UpdateMesh(vertexCount, triangleCount, (VB0ElementType*)vertices, vb1.Get(), vb2.HasItems() ? vb2.Get() : nullptr, triangles);
     }
 
 #if !COMPILE_WITHOUT_CSHARP
-
     template<typename IndexType>
-    bool UpdateMesh(Mesh* mesh, uint32 vertexCount, uint32 triangleCount, MArray* verticesObj, MArray* trianglesObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj, MArray* colorsObj)
+    bool UpdateMesh(Mesh* mesh, uint32 vertexCount, uint32 triangleCount, const MArray* verticesObj, const MArray* trianglesObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj, const MArray* colorsObj)
     {
         ASSERT((uint32)MCore::Array::GetLength(verticesObj) >= vertexCount);
         ASSERT((uint32)MCore::Array::GetLength(trianglesObj) / 3 >= triangleCount);
@@ -110,7 +109,7 @@ namespace
     }
 
     template<typename IndexType>
-    bool UpdateTriangles(Mesh* mesh, int32 triangleCount, MArray* trianglesObj)
+    bool UpdateTriangles(Mesh* mesh, int32 triangleCount, const MArray* trianglesObj)
     {
         const auto model = mesh->GetModel();
         ASSERT(model && model->IsVirtual() && trianglesObj);
@@ -121,7 +120,6 @@ namespace
 
         return mesh->UpdateTriangles(triangleCount, ib);
     }
-
 #endif
 }
 
@@ -130,7 +128,7 @@ bool Mesh::HasVertexColors() const
     return _vertexBuffers[2] != nullptr && _vertexBuffers[2]->IsAllocated();
 }
 
-bool Mesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0ElementType* vb0, VB1ElementType* vb1, VB2ElementType* vb2, void* ib, bool use16BitIndices)
+bool Mesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, const VB0ElementType* vb0, const VB1ElementType* vb1, const VB2ElementType* vb2, const void* ib, bool use16BitIndices)
 {
     auto model = (Model*)_model;
 
@@ -145,7 +143,7 @@ bool Mesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0ElementType*
 
         // Calculate mesh bounds
         BoundingBox bounds;
-        BoundingBox::FromPoints((Float3*)vb0, vertexCount, bounds);
+        BoundingBox::FromPoints((const Float3*)vb0, vertexCount, bounds);
         SetBounds(bounds);
 
         // Send event (actors using this model can update bounds, etc.)
@@ -155,17 +153,17 @@ bool Mesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0ElementType*
     return failed;
 }
 
-bool Mesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, Float3* vertices, uint16* triangles, Float3* normals, Float3* tangents, Float2* uvs, Color32* colors)
+bool Mesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, const Float3* vertices, const uint16* triangles, const Float3* normals, const Float3* tangents, const Float2* uvs, const Color32* colors)
 {
     return ::UpdateMesh<uint16>(this, vertexCount, triangleCount, vertices, triangles, normals, tangents, uvs, colors);
 }
 
-bool Mesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, Float3* vertices, uint32* triangles, Float3* normals, Float3* tangents, Float2* uvs, Color32* colors)
+bool Mesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, const Float3* vertices, const uint32* triangles, const Float3* normals, const Float3* tangents, const Float2* uvs, const Color32* colors)
 {
     return ::UpdateMesh<uint32>(this, vertexCount, triangleCount, vertices, triangles, normals, tangents, uvs, colors);
 }
 
-bool Mesh::UpdateTriangles(uint32 triangleCount, void* ib, bool use16BitIndices)
+bool Mesh::UpdateTriangles(uint32 triangleCount, const void* ib, bool use16BitIndices)
 {
     // Cache data
     uint32 indicesCount = triangleCount * 3;
@@ -217,7 +215,7 @@ Mesh::~Mesh()
     SAFE_DELETE_GPU_RESOURCE(_indexBuffer);
 }
 
-bool Mesh::Load(uint32 vertices, uint32 triangles, void* vb0, void* vb1, void* vb2, void* ib, bool use16BitIndexBuffer)
+bool Mesh::Load(uint32 vertices, uint32 triangles, const void* vb0, const void* vb1, const void* vb2, const void* ib, bool use16BitIndexBuffer)
 {
     // Cache data
     uint32 indicesCount = triangles * 3;
@@ -697,22 +695,22 @@ ScriptingObject* Mesh::GetParentModel()
 
 #if !COMPILE_WITHOUT_CSHARP
 
-bool Mesh::UpdateMeshUInt(int32 vertexCount, int32 triangleCount, MArray* verticesObj, MArray* trianglesObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj, MArray* colorsObj)
+bool Mesh::UpdateMeshUInt(int32 vertexCount, int32 triangleCount, const MArray* verticesObj, const MArray* trianglesObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj, const MArray* colorsObj)
 {
     return ::UpdateMesh<uint32>(this, (uint32)vertexCount, (uint32)triangleCount, verticesObj, trianglesObj, normalsObj, tangentsObj, uvObj, colorsObj);
 }
 
-bool Mesh::UpdateMeshUShort(int32 vertexCount, int32 triangleCount, MArray* verticesObj, MArray* trianglesObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj, MArray* colorsObj)
+bool Mesh::UpdateMeshUShort(int32 vertexCount, int32 triangleCount, const MArray* verticesObj, const MArray* trianglesObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj, const MArray* colorsObj)
 {
     return ::UpdateMesh<uint16>(this, (uint32)vertexCount, (uint32)triangleCount, verticesObj, trianglesObj, normalsObj, tangentsObj, uvObj, colorsObj);
 }
 
-bool Mesh::UpdateTrianglesUInt(int32 triangleCount, MArray* trianglesObj)
+bool Mesh::UpdateTrianglesUInt(int32 triangleCount, const MArray* trianglesObj)
 {
     return ::UpdateTriangles<uint32>(this, triangleCount, trianglesObj);
 }
 
-bool Mesh::UpdateTrianglesUShort(int32 triangleCount, MArray* trianglesObj)
+bool Mesh::UpdateTrianglesUShort(int32 triangleCount, const MArray* trianglesObj)
 {
     return ::UpdateTriangles<uint16>(this, triangleCount, trianglesObj);
 }
diff --git a/Source/Engine/Graphics/Models/Mesh.h b/Source/Engine/Graphics/Models/Mesh.h
index 4885ce3cf..9b229fc5b 100644
--- a/Source/Engine/Graphics/Models/Mesh.h
+++ b/Source/Engine/Graphics/Models/Mesh.h
@@ -112,7 +112,7 @@ public:
     /// <param name="vb2">The third vertex buffer data.</param>
     /// <param name="ib">The index buffer in clockwise order.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0ElementType* vb0, VB1ElementType* vb1, VB2ElementType* vb2, uint32* ib)
+    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, const VB0ElementType* vb0, const VB1ElementType* vb1, const VB2ElementType* vb2, const uint32* ib)
     {
         return UpdateMesh(vertexCount, triangleCount, vb0, vb1, vb2, ib, false);
     }
@@ -127,7 +127,7 @@ public:
     /// <param name="vb2">The third vertex buffer data.</param>
     /// <param name="ib">The index buffer in clockwise order.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0ElementType* vb0, VB1ElementType* vb1, VB2ElementType* vb2, uint16* ib)
+    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, const VB0ElementType* vb0, const VB1ElementType* vb1, const VB2ElementType* vb2, const uint16* ib)
     {
         return UpdateMesh(vertexCount, triangleCount, vb0, vb1, vb2, ib, true);
     }
@@ -145,7 +145,7 @@ public:
     /// <param name="ib">The index buffer in clockwise order.</param>
     /// <param name="use16BitIndices">True if index buffer uses 16-bit index buffer, otherwise 32-bit.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0ElementType* vb0, VB1ElementType* vb1, VB2ElementType* vb2, void* ib, bool use16BitIndices);
+    bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, const VB0ElementType* vb0, const VB1ElementType* vb1, const VB2ElementType* vb2, const void* ib, bool use16BitIndices);
 
     /// <summary>
     /// Updates the model mesh (used by the virtual models created with Init rather than Load).
@@ -161,7 +161,7 @@ public:
     /// <param name="uvs">The texture coordinates (per vertex).</param>
     /// <param name="colors">The vertex colors (per vertex).</param>
     /// <returns>True if failed, otherwise false.</returns>
-    bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, Float3* vertices, uint16* triangles, Float3* normals = nullptr, Float3* tangents = nullptr, Float2* uvs = nullptr, Color32* colors = nullptr);
+    bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, const Float3* vertices, const uint16* triangles, const Float3* normals = nullptr, const Float3* tangents = nullptr, const Float2* uvs = nullptr, const Color32* colors = nullptr);
 
     /// <summary>
     /// Updates the model mesh (used by the virtual models created with Init rather than Load).
@@ -177,7 +177,7 @@ public:
     /// <param name="uvs">The texture coordinates (per vertex).</param>
     /// <param name="colors">The vertex colors (per vertex).</param>
     /// <returns>True if failed, otherwise false.</returns>
-    bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, Float3* vertices, uint32* triangles, Float3* normals = nullptr, Float3* tangents = nullptr, Float2* uvs = nullptr, Color32* colors = nullptr);
+    bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, const Float3* vertices, const uint32* triangles, const Float3* normals = nullptr, const Float3* tangents = nullptr, const Float2* uvs = nullptr, const Color32* colors = nullptr);
 
 public:
     /// <summary>
@@ -186,7 +186,7 @@ public:
     /// <param name="triangleCount">The amount of triangles in the index buffer.</param>
     /// <param name="ib">The index buffer.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    FORCE_INLINE bool UpdateTriangles(uint32 triangleCount, uint32* ib)
+    FORCE_INLINE bool UpdateTriangles(uint32 triangleCount, const uint32* ib)
     {
         return UpdateTriangles(triangleCount, ib, false);
     }
@@ -197,7 +197,7 @@ public:
     /// <param name="triangleCount">The amount of triangles in the index buffer.</param>
     /// <param name="ib">The index buffer.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    FORCE_INLINE bool UpdateTriangles(uint32 triangleCount, uint16* ib)
+    FORCE_INLINE bool UpdateTriangles(uint32 triangleCount, const uint16* ib)
     {
         return UpdateTriangles(triangleCount, ib, true);
     }
@@ -209,7 +209,7 @@ public:
     /// <param name="ib">The index buffer.</param>
     /// <param name="use16BitIndices">True if index buffer uses 16-bit index buffer, otherwise 32-bit.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    bool UpdateTriangles(uint32 triangleCount, void* ib, bool use16BitIndices);
+    bool UpdateTriangles(uint32 triangleCount, const void* ib, bool use16BitIndices);
 
 public:
     /// <summary>
@@ -235,7 +235,7 @@ public:
     /// <param name="ib">Index buffer data</param>
     /// <param name="use16BitIndexBuffer">True if use 16 bit indices for the index buffer (true: uint16, false: uint32).</param>
     /// <returns>True if cannot load data, otherwise false.</returns>
-    bool Load(uint32 vertices, uint32 triangles, void* vb0, void* vb1, void* vb2, void* ib, bool use16BitIndexBuffer);
+    bool Load(uint32 vertices, uint32 triangles, const void* vb0, const void* vb1, const void* vb2, const void* ib, bool use16BitIndexBuffer);
 
     /// <summary>
     /// Unloads the mesh data (vertex buffers and cache). The opposite to Load.
@@ -315,10 +315,10 @@ private:
     // Internal bindings
     API_FUNCTION(NoProxy) ScriptingObject* GetParentModel();
 #if !COMPILE_WITHOUT_CSHARP
-    API_FUNCTION(NoProxy) bool UpdateMeshUInt(int32 vertexCount, int32 triangleCount, MArray* verticesObj, MArray* trianglesObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj, MArray* colorsObj);
-    API_FUNCTION(NoProxy) bool UpdateMeshUShort(int32 vertexCount, int32 triangleCount, MArray* verticesObj, MArray* trianglesObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj, MArray* colorsObj);
-    API_FUNCTION(NoProxy) bool UpdateTrianglesUInt(int32 triangleCount, MArray* trianglesObj);
-    API_FUNCTION(NoProxy) bool UpdateTrianglesUShort(int32 triangleCount, MArray* trianglesObj);
+    API_FUNCTION(NoProxy) bool UpdateMeshUInt(int32 vertexCount, int32 triangleCount, const MArray* verticesObj, const MArray* trianglesObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj, const MArray* colorsObj);
+    API_FUNCTION(NoProxy) bool UpdateMeshUShort(int32 vertexCount, int32 triangleCount, const MArray* verticesObj, const MArray* trianglesObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj, const MArray* colorsObj);
+    API_FUNCTION(NoProxy) bool UpdateTrianglesUInt(int32 triangleCount, const MArray* trianglesObj);
+    API_FUNCTION(NoProxy) bool UpdateTrianglesUShort(int32 triangleCount, const MArray* trianglesObj);
     API_FUNCTION(NoProxy) MArray* DownloadBuffer(bool forceGpu, MTypeObject* resultType, int32 typeI);
 #endif
 };
diff --git a/Source/Engine/Graphics/Models/SkinnedMesh.cpp b/Source/Engine/Graphics/Models/SkinnedMesh.cpp
index 8ee9599b0..14542ef91 100644
--- a/Source/Engine/Graphics/Models/SkinnedMesh.cpp
+++ b/Source/Engine/Graphics/Models/SkinnedMesh.cpp
@@ -105,7 +105,7 @@ SkinnedMesh::~SkinnedMesh()
     SAFE_DELETE_GPU_RESOURCE(_indexBuffer);
 }
 
-bool SkinnedMesh::Load(uint32 vertices, uint32 triangles, void* vb0, void* ib, bool use16BitIndexBuffer)
+bool SkinnedMesh::Load(uint32 vertices, uint32 triangles, const void* vb0, const void* ib, bool use16BitIndexBuffer)
 {
     // Cache data
     uint32 indicesCount = triangles * 3;
@@ -159,7 +159,7 @@ void SkinnedMesh::Unload()
     _use16BitIndexBuffer = false;
 }
 
-bool SkinnedMesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0SkinnedElementType* vb, void* ib, bool use16BitIndices)
+bool SkinnedMesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, const VB0SkinnedElementType* vb, const void* ib, bool use16BitIndices)
 {
     auto model = (SkinnedModel*)_model;
 
@@ -169,7 +169,7 @@ bool SkinnedMesh::UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0Skinne
     {
         // Calculate mesh bounds
         BoundingBox bounds;
-        BoundingBox::FromPoints((Float3*)vb, vertexCount, bounds);
+        BoundingBox::FromPoints((const Float3*)vb, vertexCount, bounds);
         SetBounds(bounds);
 
         // Send event (actors using this model can update bounds, etc.)
@@ -429,7 +429,7 @@ ScriptingObject* SkinnedMesh::GetParentModel()
 #if !COMPILE_WITHOUT_CSHARP
 
 template<typename IndexType>
-bool UpdateMesh(SkinnedMesh* mesh, MArray* verticesObj, MArray* trianglesObj, MArray* blendIndicesObj, MArray* blendWeightsObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj)
+bool UpdateMesh(SkinnedMesh* mesh, const MArray* verticesObj, const MArray* trianglesObj, const MArray* blendIndicesObj, const MArray* blendWeightsObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj)
 {
     auto model = mesh->GetSkinnedModel();
     ASSERT(model && model->IsVirtual() && verticesObj && trianglesObj && blendIndicesObj && blendWeightsObj);
@@ -505,12 +505,12 @@ bool UpdateMesh(SkinnedMesh* mesh, MArray* verticesObj, MArray* trianglesObj, MA
     return mesh->UpdateMesh(vertexCount, triangleCount, vb.Get(), ib);
 }
 
-bool SkinnedMesh::UpdateMeshUInt(MArray* verticesObj, MArray* trianglesObj, MArray* blendIndicesObj, MArray* blendWeightsObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj)
+bool SkinnedMesh::UpdateMeshUInt(const MArray* verticesObj, const MArray* trianglesObj, const MArray* blendIndicesObj, const MArray* blendWeightsObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj)
 {
     return ::UpdateMesh<uint32>(this, verticesObj, trianglesObj, blendIndicesObj, blendWeightsObj, normalsObj, tangentsObj, uvObj);
 }
 
-bool SkinnedMesh::UpdateMeshUShort(MArray* verticesObj, MArray* trianglesObj, MArray* blendIndicesObj, MArray* blendWeightsObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj)
+bool SkinnedMesh::UpdateMeshUShort(const MArray* verticesObj, const MArray* trianglesObj, const MArray* blendIndicesObj, const MArray* blendWeightsObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj)
 {
     return ::UpdateMesh<uint16>(this, verticesObj, trianglesObj, blendIndicesObj, blendWeightsObj, normalsObj, tangentsObj, uvObj);
 }
diff --git a/Source/Engine/Graphics/Models/SkinnedMesh.h b/Source/Engine/Graphics/Models/SkinnedMesh.h
index d6ab54f16..963511671 100644
--- a/Source/Engine/Graphics/Models/SkinnedMesh.h
+++ b/Source/Engine/Graphics/Models/SkinnedMesh.h
@@ -76,7 +76,7 @@ public:
     /// <param name="ib">Index buffer data</param>
     /// <param name="use16BitIndexBuffer">True if use 16 bit indices for the index buffer (true: uint16, false: uint32).</param>
     /// <returns>True if cannot load data, otherwise false.</returns>
-    bool Load(uint32 vertices, uint32 triangles, void* vb0, void* ib, bool use16BitIndexBuffer);
+    bool Load(uint32 vertices, uint32 triangles, const void* vb0, const void* ib, bool use16BitIndexBuffer);
 
     /// <summary>
     /// Unloads the mesh data (vertex buffers and cache). The opposite to Load.
@@ -92,7 +92,7 @@ public:
     /// <param name="vb">The vertex buffer data.</param>
     /// <param name="ib">The index buffer in clockwise order.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0SkinnedElementType* vb, int32* ib)
+    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, const VB0SkinnedElementType* vb, const int32* ib)
     {
         return UpdateMesh(vertexCount, triangleCount, vb, ib, false);
     }
@@ -105,7 +105,7 @@ public:
     /// <param name="vb">The vertex buffer data.</param>
     /// <param name="ib">The index buffer in clockwise order.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0SkinnedElementType* vb, uint32* ib)
+    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, const VB0SkinnedElementType* vb, const uint32* ib)
     {
         return UpdateMesh(vertexCount, triangleCount, vb, ib, false);
     }
@@ -118,7 +118,7 @@ public:
     /// <param name="vb">The vertex buffer data.</param>
     /// <param name="ib">The index buffer, clockwise order.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0SkinnedElementType* vb, uint16* ib)
+    FORCE_INLINE bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, const VB0SkinnedElementType* vb, const uint16* ib)
     {
         return UpdateMesh(vertexCount, triangleCount, vb, ib, true);
     }
@@ -132,7 +132,7 @@ public:
     /// <param name="ib">The index buffer in clockwise order.</param>
     /// <param name="use16BitIndices">True if index buffer uses 16-bit index buffer, otherwise 32-bit.</param>
     /// <returns>True if failed, otherwise false.</returns>
-    bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, VB0SkinnedElementType* vb, void* ib, bool use16BitIndices);
+    bool UpdateMesh(uint32 vertexCount, uint32 triangleCount, const VB0SkinnedElementType* vb, const void* ib, bool use16BitIndices);
 
 public:
     /// <summary>
@@ -188,8 +188,8 @@ private:
     // Internal bindings
     API_FUNCTION(NoProxy) ScriptingObject* GetParentModel();
 #if !COMPILE_WITHOUT_CSHARP
-    API_FUNCTION(NoProxy) bool UpdateMeshUInt(MArray* verticesObj, MArray* trianglesObj, MArray* blendIndicesObj, MArray* blendWeightsObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj);
-    API_FUNCTION(NoProxy) bool UpdateMeshUShort(MArray* verticesObj, MArray* trianglesObj, MArray* blendIndicesObj, MArray* blendWeightsObj, MArray* normalsObj, MArray* tangentsObj, MArray* uvObj);
+    API_FUNCTION(NoProxy) bool UpdateMeshUInt(const MArray* verticesObj, const MArray* trianglesObj, const MArray* blendIndicesObj, const MArray* blendWeightsObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj);
+    API_FUNCTION(NoProxy) bool UpdateMeshUShort(const MArray* verticesObj, const MArray* trianglesObj, const MArray* blendIndicesObj, const MArray* blendWeightsObj, const MArray* normalsObj, const MArray* tangentsObj, const MArray* uvObj);
     API_FUNCTION(NoProxy) MArray* DownloadBuffer(bool forceGpu, MTypeObject* resultType, int32 typeI);
 #endif
 };