97 static void bndbox_intersect(bndbox *bx, ray *ry) {  in bndbox_intersect()  argument
105     if (ry->flags & RT_RAY_BOUNDED) {  in bndbox_intersect()
106         if ((ry->s.x > bx->max.x) && (ry->e.x > bx->max.x))  in bndbox_intersect()
108         if ((ry->s.x < bx->min.x) && (ry->e.x < bx->min.x))  in bndbox_intersect()
111         if ((ry->s.y > bx->max.y) && (ry->e.y > bx->max.y))  in bndbox_intersect()
113         if ((ry->s.y < bx->min.y) && (ry->e.y < bx->min.y))  in bndbox_intersect()
116         if ((ry->s.z > bx->max.z) && (ry->e.z > bx->max.z))  in bndbox_intersect()
118         if ((ry->s.z < bx->min.z) && (ry->e.z < bx->min.z))  in bndbox_intersect()
125     if (ry->d.x == 0.0) {  in bndbox_intersect()
126         if ((ry->o.x < bx->min.x) || (ry->o.x > bx->max.x))  in bndbox_intersect()
130         tx1 = (bx->min.x - ry->o.x) / ry->d.x;  in bndbox_intersect()
131         tx2 = (bx->max.x - ry->o.x) / ry->d.x;  in bndbox_intersect()
147     if (ry->d.y == 0.0) {  in bndbox_intersect()
148         if ((ry->o.y < bx->min.y) || (ry->o.y > bx->max.y))  in bndbox_intersect()
152         ty1 = (bx->min.y - ry->o.y) / ry->d.y;  in bndbox_intersect()
153         ty2 = (bx->max.y - ry->o.y) / ry->d.y;  in bndbox_intersect()
169     if (ry->d.z == 0.0) {  in bndbox_intersect()
170         if ((ry->o.z < bx->min.z) || (ry->o.z > bx->max.z))  in bndbox_intersect()
174         tz1 = (bx->min.z - ry->o.z) / ry->d.z;  in bndbox_intersect()
175         tz2 = (bx->max.z - ry->o.z) / ry->d.z;  in bndbox_intersect()
192     newray = *ry;  in bndbox_intersect()
195     RAYPNT(newray.s, (*ry), tnear);  in bndbox_intersect()
196     RAYPNT(newray.e, (*ry), (tfar + EPSILON));  in bndbox_intersect()