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Fix regression introduced in svn rev49122

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Would rather have mathematical functions consistent from using
the same vector for input and output values point of view then
introducing questionable optimizations.
This commit is contained in:
Sergey Sharybin
2012-07-25 16:37:24 +00:00
parent 7fba5779ed
commit 8197ae0054
1 changed files with 5 additions and 4 deletions
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9
source/blender/blenlib/intern/math_rotation.c
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@@ -662,15 +662,16 @@ void print_qt(const char *str, const float q[4])
/* Axis angle to Quaternions */
void axis_angle_to_quat(float q[4], const float axis[3], const float angle)
{
float nor[3];
if (LIKELY(normalize_v3_v3(q + 1, axis) != 0.0f)) {
if (LIKELY(normalize_v3_v3(nor, axis) != 0.0f)) {
const float phi = angle / 2.0f;
float si;
si = sinf(phi);
q[0] = cosf(phi);
q[1] *= si;
q[2] *= si;
q[3] *= si;
q[1] = nor[0] * si;
q[2] = nor[1] * si;
q[3] = nor[2] * si;
}
else {
unit_qt(q);