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How to bind 2 textures for each subset of a .X file?

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Hi, I am rendering a complex Maya-made .x file(ID3DXMESH) model which has many subsets. I want to bind 2 textures(Color map & Normal map) for each subset of the model. However. I don't know how to render all the subsets in a shot. Now I am using: // load the mesh D3DXLoadMeshFromX("Terrain.X", D3DXMESH_MANAGED, gd3dDevice, NULL, &pD3DXMtrlBuffer, NULL, &g_dwNumMaterials, &mTerrain); for( DWORD i=0; i<g_dwNumMaterials; i++ ) { g_pMeshTextures = NULL; if( d3dxMaterials.pTextureFilename != NULL && lstrlen(d3dxMaterials.pTextureFilename) > 0 ) { // load a texture for each subset of the mesh D3DXCreateTextureFromFile( gd3dDevice, d3dxMaterials.pTextureFilename, &g_pMeshTextures ); } } In this way I can only load a single texture for each subset of the mesh, How to load two textures(color & norm) for each subset? Thanks!

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