Created
January 18, 2016 19:15
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LibGDX FrameBuffer Test
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| import com.badlogic.gdx.*; | |
| import com.badlogic.gdx.graphics.*; | |
| import com.badlogic.gdx.graphics.g2d.*; | |
| import com.badlogic.gdx.graphics.glutils.*; | |
| import com.badlogic.gdx.math.*; | |
| public class FramebufferTest extends ApplicationAdapter { | |
| FrameBuffer fbo; | |
| SpriteBatch batch; | |
| TextureRegion texture; | |
| @Override | |
| public void create () { | |
| batch = new SpriteBatch(); | |
| Texture img = new Texture("badlogic.jpg"); | |
| fbo = new FrameBuffer(Pixmap.Format.RGBA8888, img.getWidth(), img.getHeight(), false); | |
| texture = new TextureRegion(fbo.getColorBufferTexture()); | |
| texture.flip(false, true); | |
| fbo.begin(); | |
| Gdx.gl.glClearColor(0, 0, 0, 0); | |
| Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT); | |
| Matrix4 matrix = new Matrix4(); | |
| matrix.setToOrtho2D(0, 0, img.getWidth(), img.getHeight()); | |
| batch.setProjectionMatrix(matrix); | |
| batch.begin(); | |
| batch.draw(img, 0, 0); | |
| batch.end(); | |
| fbo.end(); | |
| // uncomment this line to see the correct behaviour | |
| // run this with the line commented will return to the correct behaviour after moving the window | |
| // HdpiUtils.glViewport(0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight()); | |
| } | |
| @Override | |
| public void render () { | |
| Gdx.gl.glClearColor(1, 0, 0, 1); | |
| Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT); | |
| batch.begin(); | |
| batch.draw(texture, 0, 0); | |
| batch.end(); | |
| } | |
| } |
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