Function write_with_material 

pub fn write_with_material<T, C, G>(
    shader_property_group: &[ShaderProperty],
    material_property_group: &C,
    getter: G,
    buf: &mut UniformBuffer<T>,
)
where
    T: ByteStorage,
    G: for<'a> Fn(&'a C, &ImmutableString) -> Option<MaterialPropertyRef<'a>>,