public void setElement(SceneElement e) {
super.setElement(e);
RuntimeDrawable<?> r = (RuntimeDrawable<?>) assetHandler.getRuntimeAsset(transition.getMask());
texture = r.getTextureHandle();
offset = new Vector3();
if (maskShader == null) {
maskShader =
new ShaderProgram(
assetHandler.getTextFile("@binary/shaders/mask.vert"),
assetHandler.getTextFile("@binary/shaders/mask.frag"));
if (maskShader.getLog().length() != 0) logger.warn(maskShader.getLog());
nextSceneBuffer = new FrameBuffer(Format.RGBA8888, 800, 600, false);
}
maskShader.begin();
maskShader.setUniformi("mask_texture", 1);
maskShader.setAttributef("a_sizes", 800, 600, r.getWidth(), r.getHeight());
maskShader.end();
}
@Override
public void drawChildren(SpriteBatch batch, float parentAlpha) {
previousScene.setVisible(true);
nextScene.setVisible(false);
super.drawChildren(batch, parentAlpha);
batch.end();
nextSceneBuffer.begin();
batch.begin();
previousScene.setVisible(false);
nextScene.setVisible(true);
super.drawChildren(batch, parentAlpha);
nextSceneBuffer.end();
batch.flush();
batch.setShader(maskShader);
maskShader.setAttributef("a_offset", offset.x, offset.y, offset.z, 0);
texture.bind(1);
Gdx.gl.glActiveTexture(GL10.GL_TEXTURE0);
Gdx.gl.glBindTexture(GL10.GL_TEXTURE_2D, 0);
batch.draw(nextSceneBuffer.getColorBufferTexture(), 0, 0);
batch.setShader(null);
}