Function g3_ProjectPoint

renderer/HardwarePoints.cpp:79–87

projects a point

// projects a point
void g3_ProjectPoint(g3Point *p) {
  if (p->p3_flags & PF_PROJECTED || p->p3_codes & CC_BEHIND)
    return;

  float one_over_z = 1.0 / p->p3_z;
  p->p3_sx = Window_w2 + (p->p3_x * (Window_w2 * one_over_z));
  p->p3_sy = Window_h2 - (p->p3_y * (Window_h2 * one_over_z));
  p->p3_flags |= PF_PROJECTED;
}

// from a 2d point, compute the vector through that point
void g3_Point2Vec(vector *v, int16_t sx, int16_t sy) {