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rewrite CrossProduct so memory is accessed more linearly. should provide

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a tiny speedup for servers and clipped skyboxes
This commit is contained in:
Bill Currie 2002-01-04 06:13:50 +00:00
parent df947a8843
commit 36bb62c3c5
1 changed files with 10 additions and 3 deletions
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13
libs/util/mathlib.c
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@ -401,9 +401,16 @@ _VectorCopy (const vec3_t in, vec3_t out)
void void
CrossProduct (const vec3_t v1, const vec3_t v2, vec3_t cross) CrossProduct (const vec3_t v1, const vec3_t v2, vec3_t cross)
{ {
cross[0] = v1[1] * v2[2] - v1[2] * v2[1]; float v10 = v1[0];
cross[1] = v1[2] * v2[0] - v1[0] * v2[2]; float v11 = v1[1];
cross[2] = v1[0] * v2[1] - v1[1] * v2[0]; float v12 = v1[2];
float v20 = v2[0];
float v21 = v2[1];
float v22 = v2[2];
cross[0] = v11 * v22 - v12 * v21;
cross[1] = v12 * v20 - v10 * v22;
cross[2] = v10 * v21 - v11 * v20;
} }
vec_t vec_t