pub unsafe extern "C" fn rtcSetNewGeometryBuffer(
geometry: RTCGeometry,
type_: RTCBufferType,
slot: c_uint,
format: RTCFormat,
byteStride: usize,
itemCount: usize,
) -> *mut c_void
pub unsafe extern "C" fn rtcSetNewGeometryBuffer(
geometry: RTCGeometry,
type_: RTCBufferType,
slot: c_uint,
format: RTCFormat,
byteStride: usize,
itemCount: usize,
) -> *mut c_void