小编loo*_*gie的帖子

我正在尝试制作一个游戏,你可以用零件制造宇宙飞船,然后飞来飞去.

我想从一系列组件(例如,来自TextureAtlas)创建船.我想从它的组件纹理中绘制船只,然后将绘制的船只保存为一个大的纹理.(所以我不需要绘制50个组件纹理,只需要一个船舶纹理.最好的方法是什么？

我一直在尝试使用FrameBuffer.我已经能够将组件绘制到纹理,并将纹理绘制到屏幕上,但无论我尝试什么,纹理最终都会得到帧缓冲区大小的实心背景.这就像清晰的命令无法透明地清除.这是我目前的绘图代码.这艘船只是一个Sprite,我将FrameBuffer纹理保存到.

    public void render(){

    if (ship == null){
        int screenwidth = Gdx.graphics.getWidth();
        int screenheight = Gdx.graphics.getHeight();

        SpriteBatch fb = new SpriteBatch();

        FrameBuffer fbo = new FrameBuffer(Format.RGB888, screenwidth, screenheight, false);

        fbo.begin();

        fb.enableBlending();
        Gdx.gl.glBlendFuncSeparate(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA, GL20.GL_ONE, GL20.GL_ONE_MINUS_SRC_ALPHA);

        Gdx.gl.glClearColor(1, 0, 1, 0);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        fb.begin();


        atlas.createSprite("0").draw(fb);

        fb.end();

        fbo.end();

        ship = new Sprite(fbo.getColorBufferTexture());
        ship.setPosition(0, -screenheight);
    }

    Gdx.gl.glClearColor(1, 0, 0, 1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

    batch.begin();

    batch.enableBlending();
    batch.setBlendFunction(GL20.GL_ONE, GL20.GL_ZERO);
    ship.draw(batch);
    batch.end();
  }
    }

我在尝试遵循Django Rest Framework的快速入门示例时遇到错误.据我所知,我已根据需要设置了所有内容,我已经过了几次,但似乎无法找到错误错误如下

    Environment:


    Request Method: GET
    Request URL: http://webdev.lab.unlab.ca/

    Django Version: 1.6
    Python Version: 2.7.3
    Installed Applications:
    ('django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
     'rest_framework')
    Installed Middleware:
    ('django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware')


    Traceback:
    File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
      114.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
    File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py" in view
      69.             return self.dispatch(request, *args, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/django/views/decorators/csrf.py" in wrapped_view
      57.         return view_func(*args, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/rest_framework/views.py" in dispatch
      399.             response = self.handle_exception(exc)
    File "/usr/local/lib/python2.7/dist-packages/rest_framework/views.py" in dispatch
      387.             self.initial(request, *args, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/rest_framework/views.py" in …