pub unsafe extern "C" fn graphene_point3d_scale(
p: *const graphene_point3d_t,
factor: c_float,
res: *mut graphene_point3d_t,
)
pub unsafe extern "C" fn graphene_point3d_scale(
p: *const graphene_point3d_t,
factor: c_float,
res: *mut graphene_point3d_t,
)