quil 2021-09-02 | Slack Archive

Joe16:09:34

Hello! I'm using fun-mode , and trying to draw a non-moving background of several rectangles. Redrawing them on every frame definitely works but it makes my fans spin. I tried drawing them in the setup but they vanish on the second frame. Is there a way to just have them drawn on frame 1 and have them stick around for life of the program without re-drawing? Thanks

Charles Comstock17:09:35

You can create more then one graphics context and paste them together. That way you could construct a background image graphics context in setup, draw the shapes to it, and then before drawing the foreground in each frame, use q/image or q/copy to paste the background on the empty canvas and then draw on top of that.

Joe17:09:41

Great, thanks! I’ll try it out

Charles Comstock17:09:31

http://quil.info/api/image/rendering#create-graphics gives a quick example too if that helps

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2021-09-02

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