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inverse (opposite) of vectors

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This commit is contained in:
Recep Aslantas
2017-10-27 00:20:41 +03:00
parent 48977a012b
commit 9fe48b34a7
6 changed files with 92 additions and 0 deletions
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26
include/cglm/vec4.h
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@@ -26,6 +26,8 @@
CGLM_INLINE void glm_vec4_scale(vec4 v, float s, vec4 dest);
CGLM_INLINE void glm_vec4_scale_as(vec4 v, float s, vec4 dest);
CGLM_INLINE void glm_vec4_flipsign(vec4 v);
CGLM_INLINE void glm_vec4_inv(vec4 v);
CGLM_INLINE void glm_vec4_inv_to(vec4 v, vec4 dest);
CGLM_INLINE void glm_vec4_normalize(vec4 v);
CGLM_INLINE void glm_vec4_normalize_to(vec4 vec, vec4 dest);
CGLM_INLINE float glm_vec4_distance(vec4 v1, vec4 v2);
@@ -225,6 +227,30 @@ glm_vec4_flipsign(vec4 v) {
#endif
}
/*!
* @brief make vector as inverse/opposite of itself
*
* @param[in, out] v vector
*/
CGLM_INLINE
void
glm_vec4_inv(vec4 v) {
glm_vec4_flipsign(v);
}
/*!
* @brief inverse/opposite vector
*
* @param[in] vec source
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_vec4_inv_to(vec4 v, vec4 dest) {
glm_vec4_copy(v, dest);
glm_vec4_flipsign(dest);
}
/*!
* @brief normalize vec4 and store result in same vec
*