void
graphene_matrix_rotate (graphene_matrix_t *m,
float angle,
const graphene_vec3_t *axis)
{
graphene_simd4x4f_t rot_m;
graphene_simd4x4f_rotation (&rot_m, angle, axis->value);
graphene_simd4x4f_mul (&m->value, &rot_m, &m->value);
}
static inline void
graphene_matrix_rotate_internal (graphene_simd4x4f_t *m,
float angle,
graphene_simd4f_t axis)
{
float rad = angle * GRAPHENE_PI / 180.f;
graphene_simd4x4f_t rot_m;
graphene_simd4x4f_rotation (&rot_m, rad, axis);
graphene_simd4x4f_matrix_mul (m, &rot_m, m);
}
graphene_matrix_t *
graphene_matrix_init_rotate (graphene_matrix_t *m,
float angle,
const graphene_vec3_t *axis)
{
g_return_val_if_fail (m != NULL, NULL);
g_return_val_if_fail (axis != NULL, m);
graphene_simd4x4f_rotation (&m->value, angle, axis->value);
return m;
}
/**
* graphene_matrix_init_rotate:
* @m: a #graphene_matrix_t
* @angle: the rotation angle, in degrees
* @axis: the axis vector as a #graphene_vec3_t
*
* Initializes @m to represent a rotation of @angle degrees on
* the axis represented by the @axis vector.
*
* Returns: (transfer none): the initialized matrix
*
* Since: 1.0
*/
graphene_matrix_t *
graphene_matrix_init_rotate (graphene_matrix_t *m,
float angle,
const graphene_vec3_t *axis)
{
float rad;
rad = angle * GRAPHENE_PI / 180.f;
graphene_simd4x4f_rotation (&m->value, rad, axis->value);
return m;
}
