vec_t ColorNormalize( const vec3_t in, vec3_t out );
void VectorInverse (vec3_t v);
void VectorPolar(vec3_t v, float radius, float theta, float phi);
vec_t ColorNormalize( const vec3_t in, vec3_t out );
void VectorInverse (vec3_t v);
void VectorPolar(vec3_t v, float radius, float theta, float phi);