pub unsafe extern "C" fn graphene_vec3_scale(
v: *const graphene_vec3_t,
factor: c_float,
res: *mut graphene_vec3_t,
)
pub unsafe extern "C" fn graphene_vec3_scale(
v: *const graphene_vec3_t,
factor: c_float,
res: *mut graphene_vec3_t,
)