65 bndbox *newbndbox(vector min, vector max) {  in newbndbox()  argument
71     b->max = max;  in newbndbox()
80 static int bndbox_bbox(void *obj, vector *min, vector *max) {  in bndbox_bbox()  argument
84     *max = b->max;  in bndbox_bbox()
106         if ((ry->s.x > bx->max.x) && (ry->e.x > bx->max.x))  in bndbox_intersect()
111         if ((ry->s.y > bx->max.y) && (ry->e.y > bx->max.y))  in bndbox_intersect()
116         if ((ry->s.z > bx->max.z) && (ry->e.z > bx->max.z))  in bndbox_intersect()
126         if ((ry->o.x < bx->min.x) || (ry->o.x > bx->max.x))  in bndbox_intersect()
131         tx2 = (bx->max.x - ry->o.x) / ry->d.x;  in bndbox_intersect()
148         if ((ry->o.y < bx->min.y) || (ry->o.y > bx->max.y))  in bndbox_intersect()
153         ty2 = (bx->max.y - ry->o.y) / ry->d.y;  in bndbox_intersect()
170         if ((ry->o.z < bx->min.z) || (ry->o.z > bx->max.z))  in bndbox_intersect()
175         tz2 = (bx->max.z - ry->o.z) / ry->d.z;  in bndbox_intersect()