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Fix quaternion multiplication signs;

This commit is contained in:
bjorn 2019-01-11 05:34:59 -08:00
parent fa79420cbf
commit 305acb89a9
1 changed files with 3 additions and 3 deletions
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6
src/lib/math.c
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@ -121,9 +121,9 @@ quat quat_fromMat4(quat q, mat4 m) {
quat quat_mul(quat q, quat r) {
return quat_set(q,
q[0] * r[3] + q[3] * r[0] - q[1] * r[2] - q[2] * r[1],
q[1] * r[3] + q[3] * r[1] - q[2] * r[0] - q[0] * r[2],
q[2] * r[3] + q[3] * r[2] - q[0] * r[1] - q[1] * r[0],
q[0] * r[3] + q[3] * r[0] + q[1] * r[2] - q[2] * r[1],
q[1] * r[3] + q[3] * r[1] + q[2] * r[0] - q[0] * r[2],
q[2] * r[3] + q[3] * r[2] + q[0] * r[1] - q[1] * r[0],
q[3] * r[3] - q[0] * r[0] - q[1] * r[1] - q[2] * r[2]
);
}