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Data storage for mesh faces


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I've got a fairly good understanding of how meshes keep track of their vertices, but how do they store data associated with faces? I've been searching through the documentation and digging into the mesh object locally, but I'm not understanding this yet.


Are faces stored in a separate array, or is there an array that stores edge connections between vertices? How are faces stored and rendered? I've been able to extract screen coordinates for each vertex of a moving mesh, but I'm hoping to understand how that is turned into triangles during rendering.



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