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vec: convenient wrappers/utils for vectors (#21)

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* vec: convenient wrappers/utils for vectors
* add additional convenient funcs
This commit is contained in:
Recep Aslantas
2018-01-16 23:10:35 +03:00
committed by GitHub
parent ee78459340
commit c58db651a6
2 changed files with 98 additions and 2 deletions
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17
include/cglm/vec4.h
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@@ -20,6 +20,7 @@
GLM_VEC4_BLACK
Functions:
CGLM_INLINE void glm_vec4(vec3 v3, float last, vec4 dest);
CGLM_INLINE void glm_vec4_copy3(vec4 a, vec3 dest);
CGLM_INLINE void glm_vec4_copy(vec4 v, vec4 dest);
CGLM_INLINE float glm_vec4_dot(vec4 a, vec4 b);
@@ -56,6 +57,22 @@
#define GLM_VEC4_ONE (vec4)GLM_VEC4_ONE_INIT
#define GLM_VEC4_BLACK (vec4)GLM_VEC4_BLACK_INIT
/*!
* @brief init vec4 using vec3
*
* @param[in] v3 vector3
* @param[in] last last item
* @param[out] dest destination
*/
CGLM_INLINE
void
glm_vec4(vec3 v3, float last, vec4 dest) {
dest[0] = v3[0];
dest[1] = v3[1];
dest[2] = v3[2];
dest[3] = last;
}
/*!
* @brief copy first 3 members of [a] to [dest]
*