Optimum ordering for packed vertex arrays on iPhone

Posted by Pestilence on Stack Overflow See other posts from Stack Overflow or by Pestilence
Published on 2009-12-10T23:50:38Z Indexed on 2010/06/01 10:43 UTC
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Filed under:

iphone

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iphone-sdk

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opengl

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3d

Is there an optimum packing format for vertex arrays on the iPhone hardware? My textured (triangle) arrays are ordered:

Vertex (x, y, z)
Vertex Normal (x, y, z)
Texture Coordinates (u, v)

This is the way I've always done it. Should the UVs come before the normals? I'm not sure if it matters. I'd assume that the texturing & lighting units would have a preference, but I can't find anything about it. I certainly can't detect a difference.

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