@ITman496 There is no longer any official support (by processing.org) for the RaspberryPI. Gottfreid Haider who was providing support, has left processing.org. He did some mods to port processing to the RaspberryPI (specifically RaspberryPI3B+ running Stretch using Oracle JDK8). There is no support for Buster distro, and definitely no support for RaspberryPI4. However I have found if I remove the Gottfreid Haider mods (essentially the shader mods) and use the FakeKMS graphics driver in place of the default driver, I get good results with PiCrate. It may not suit you, because in place of processing IDE I use Geany and you need to learn ruby. But I mention this as I am sure vanilla processing could be made to work well on RaspberryPI4 and Buster. For the interested, I develop PiCrate here.
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