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Fix cross product when operand is also dest

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This commit is contained in:
Sundaram Ramaswamy
2021-06-10 17:20:50 +05:30
parent 479e7d4240
commit aa071b2a6b
1 changed files with 5 additions and 3 deletions
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8
include/cglm/vec3.h
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@@ -578,10 +578,12 @@ glm_vec3_normalize_to(vec3 v, vec3 dest) {
CGLM_INLINE
void
glm_vec3_cross(vec3 a, vec3 b, vec3 dest) {
vec3 c;
/* (u2.v3 - u3.v2, u3.v1 - u1.v3, u1.v2 - u2.v1) */
dest[0] = a[1] * b[2] - a[2] * b[1];
dest[1] = a[2] * b[0] - a[0] * b[2];
dest[2] = a[0] * b[1] - a[1] * b[0];
c[0] = a[1] * b[2] - a[2] * b[1];
c[1] = a[2] * b[0] - a[0] * b[2];
c[2] = a[0] * b[1] - a[1] * b[0];
glm_vec3_copy(c, dest);
}
/*!