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30
31#ifndef ROTATION_TRANSLATION_SCALE_GLSLLIB
32#define ROTATION_TRANSLATION_SCALE_GLSLLIB
33
34mat4 rotationTranslationScale( in vec3 rotation, in vec3 translation, in vec3 scaling )
35{
36  mat4 st = mat4( scaling.x, 0.0, 0.0, 0.0
37                , 0.0, scaling.y, 0.0, 0.0
38                , 0.0, 0.0, scaling.z, 0.0
39                , translation.x - 0.5, translation.y - 0.5, translation.z - 0.5, 1.0 );
40  vec3 s = sin( rotation );
41  vec3 c = cos( rotation );
42  mat4 r = mat4( c.y * c.z, -c.x * s.z + s.x * s.y * c.z,  s.x * s.z + c.x * s.y * c.z, 0.0
43               , c.y * s.z,  c.x * c.z + s.x * s.y * s.z, -s.x * c.z + c.x * s.y * s.z, 0.0
44               , -s.y     ,  s.x * c.y                  ,  c.x * c.y                  , 0.0
45               , 0.5     ,  0.5                       ,  0.5                       , 1.0 );
46  return( st * r );
47}
48
49
50#endif
51