174     if (ry->d.x == 0.0) {  in ext_volume_texture()
179         tx1 = (bx->min.x - ry->o.x) / ry->d.x;  in ext_volume_texture()
180         tx2 = (bx->max.x - ry->o.x) / ry->d.x;  in ext_volume_texture()
196     if (ry->d.y == 0.0) {  in ext_volume_texture()
201         ty1 = (bx->min.y - ry->o.y) / ry->d.y;  in ext_volume_texture()
202         ty2 = (bx->max.y - ry->o.y) / ry->d.y;  in ext_volume_texture()
218     if (ry->d.z == 0.0) {  in ext_volume_texture()
223         tz1 = (bx->min.z - ry->o.z) / ry->d.z;  in ext_volume_texture()
224         tz2 = (bx->max.z - ry->o.z) / ry->d.z;  in ext_volume_texture()
257             pnt.x = ((ry->o.x + (ry->d.x * t)) - bx->min.x) / bln.x;  in ext_volume_texture()
258             pnt.y = ((ry->o.y + (ry->d.y * t)) - bx->min.y) / bln.y;  in ext_volume_texture()
259             pnt.z = ((ry->o.z + (ry->d.z * t)) - bx->min.z) / bln.z;  in ext_volume_texture()