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Man Pages
vpMultMatrix(3) FreeBSD Library Functions Manual vpMultMatrix(3)

vpMultMatrix - multiply the current transformation matrix by another matrix

#include <volpack.h>
vpResult
vpMultMatrix(vpc, m)
vpContext *vpc;
vpMatrix4 m;

vpc
VolPack context from vpCreateContext.
m
Input matrix.

vpMultMatrix is used to multiply the current transformation matrix by an arbitrary 4-by-4 transformation matrix. Use vpCurrentMatrix to set the current transformation matrix. By default, the matrix is post-multiplied (N = N* m where N is the current matrix and m is the argument to vpMultMatrix). The VP_CONCAT_MODE option to vpSeti can be used to select pre-multiplication.

The current matrix concatenation parameters can be retrieved with the following state variable codes (see vpGeti(3)): VP_CURRENT_MATRIX, VP_CONCAT_MODE.

The return value is always VP_OK.

VolPack(3), vpCreateContext(3), vpCurrentMatrix(3)
VolPack

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