HP OpenGL Implementation Guide for HP-UX 11.X (IPF version) (5969-3152)


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... normalize the normal instead of the matrix as row 1, and the left most column as column 1. otherwise, it is calculated as dictated by the OpenGL Spec. programming hints If rescaling is disabled, f is 1, otherwise f is computed as follows: Let mij denote the matrix element in the previous fully transformed normal equation...