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Improve vec3Xmat4

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This commit is contained in:
Miloslav Číž 2019-05-16 23:50:03 +02:00
parent e31a837e57
commit f3817882b0
1 changed files with 6 additions and 0 deletions
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6
s3l.h
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@ -382,6 +382,12 @@ void S3L_vec3Xmat4(S3L_Vec4 *v, S3L_Mat4 *m)
{ {
S3L_Vec4 vBackup; S3L_Vec4 vBackup;
#define dotCol(col)\
(vBackup.x * (*m)[col][0]) / S3L_FRACTIONS_PER_UNIT +\
(vBackup.y * (*m)[col][1]) / S3L_FRACTIONS_PER_UNIT +\
(vBackup.z * (*m)[col][2]) / S3L_FRACTIONS_PER_UNIT +\
(*m)[col][3]
vBackup.x = v->x; vBackup.x = v->x;
vBackup.y = v->y; vBackup.y = v->y;
vBackup.z = v->z; vBackup.z = v->z;