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#ActualBornToCode

Posted 05 June 2013 - 08:30 PM

You use the Index buffer that way not only you save memory on reusing vertices. You can also used index buffers as a way to split the mesh by material id, that way If you have a mesh that uses multiple material, you can break each section into his own index buffer while referencing the same vertex buffer. For example let's say you wanted to draw an Quad, you would basically need 6 vertices. But with an index buffer you only need 4 vertices and the index buffer would reference which  one of those vertices it needs to use to create the quad.


#1BornToCode

Posted 05 June 2013 - 08:29 PM

You use the Index buffer that way not only you save memory on reusing vertices. You can also used index buffers as a way to split the mesh by material id, that way If you have a mesh that uses multiple material, you can break each section into his own index buffer while referencing the same vertex buffer.


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