Flickering stroke when showing/hiding menu

[SableRaf]

The actual bug is due to the fact that the transparent paintscreen and wallscreen PGraphics are drawn on top of themselves every frame. The background should be redrawn every frame and not only when showing/hiding the menu.

[JesseScott]

is there a vsync sytem enabled ? (for double buffering ?)

this is how it used to be done in 1.5.1, but the PGL class has changed...
http://forum.processing.org/topic/vertical-sync-in-processing-2-0

[SableRaf]

I don't know how that works in 2.0 either.