pub unsafe extern "C" fn graphene_triangle_get_barycoords(
t: *const graphene_triangle_t,
p: *const graphene_point3d_t,
res: *mut graphene_vec2_t,
) -> bool
pub unsafe extern "C" fn graphene_triangle_get_barycoords(
t: *const graphene_triangle_t,
p: *const graphene_point3d_t,
res: *mut graphene_vec2_t,
) -> bool