Do you have an example of a custom render? I would like to do some opengl and need a writable-image based component to render to.

@chris441, not exactly sure what you mean by custom render. Here's my graphics backend implementation that works with cljfx, https://github.com/phronmophobic/membrane/blob/master/src/membrane/cljfx.clj#L411 There's basic examples for drawing some shapes, text, images, etc.

That is helpful, thanks 😊