java - libGDX OpenGL clear buffer bit -

i effect of not clearing buffer bit how creates ghost trail , allows me create neat effects , images. there way can capture , save somehow drawing on screen? perhaps recall in code later.

you try using framebuffer. in loading code have like:

framebuffer fbo; public void load() {     int screenwidth = gdx.graphics.getwidth();     int screenheight = gdx.graphics.getheight();     fbo = new framebuffer(format.rgb8888, screenwidth, screenheight, false); } 

and in rendering code:

public void render(spritebatch batch) {     fbo.begin();     batch.begin();     //rendering stuff goes here     batch.end();     fbo.end(); } 

now texture of framebuffer later reuse:

fbo.getcolorbuffertexture()