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