message: begin trying to impl multisampling
diff: @@ -299,9 +299,24 @@ impl GraphicsContext {
  let encoder: gfx::Encoder<gfx_device_gl::Resources, gfx_device_gl::CommandBuffer> =
  factory.create_command_buffer().into();
  + let set = factory.create_shader_set(
  + include_bytes!("shader/basic_150.glslv"),
  + include_bytes!("shader/basic_150.glslf")
  + ).unwrap();
  +
  + let rasterizer = gfx::state::Rasterizer {
  + front_face: gfx::state::FrontFace::CounterClockwise,
  + cull_face: gfx::state::CullFace::Nothing,
  + method: gfx::state::RasterMethod::Fill,
  + offset: None,
  + samples: Some(gfx::state::MultiSample)
  + };
  +
  let pso = factory
  - .create_pipeline_simple(include_bytes!("shader/basic_150.glslv"),
  - include_bytes!("shader/basic_150.glslf"),
  + .create_pipeline_state(
  + &set,
  + gfx::Primitive::TriangleList,
  + rasterizer,
  pipe::new())?;
  let rect_inst_props = factory
  