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rotate around single axis

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This commit is contained in:
Recep Aslantas
2016-09-12 10:49:44 +03:00
parent 5fcadc24cc
commit 3d34f27088
1 changed files with 54 additions and 0 deletions
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54
include/cglm-affine.h
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@@ -98,4 +98,58 @@ glm_scale1_self(mat4 m, float s) {
m[2][2] *= s;
}
CGLM_INLINE
void
glm_rotate_x(mat4 m, float rad, mat4 dest) {
float cosVal;
float sinVal;
mat4 t = GLM_MAT_IDENTITY_4F;
cosVal = cos(rad);
sinVal = sin(rad);
t[1][1] = cosVal;
t[1][2] = sinVal;
t[2][1] = -sinVal;
t[2][2] = cosVal;
glm_mat_mul4(t, m, dest);
}
CGLM_INLINE
void
glm_rotate_y(mat4 m, float rad, mat4 dest) {
float cosVal;
float sinVal;
mat4 t = GLM_MAT_IDENTITY_4F;
cosVal = cos(rad);
sinVal = sin(rad);
t[0][0] = cosVal;
t[0][2] = -sinVal;
t[2][0] = sinVal;
t[2][2] = cosVal;
glm_mat_mul4(t, m, dest);
}
CGLM_INLINE
void
glm_rotate_z(mat4 m, float rad, mat4 dest) {
float cosVal;
float sinVal;
mat4 t = GLM_MAT_IDENTITY_4F;
cosVal = cos(rad);
sinVal = sin(rad);
t[0][0] = cosVal;
t[0][1] = sinVal;
t[1][0] = -sinVal;
t[1][1] = cosVal;
glm_mat_mul4(t, m, dest);
}
#endif /* cglm_affine_h */