Is OpenGL still a good decission?

[kunz]

Looks like there are some workarounds to move more work to the GPU, but when I tested it, things like plugin scaling didn’t work anymore as expected. And CPU load was still high if I remember right:

Ableton Windows OpenGL "freeze-out" on high work load and multi-instance

I have had similar issues in Cubase on Windows. Every component repainting (especially moving) on the OpenGL-thread requires there MML-lock. (And something like painting complex shapes, will also involve the CPU, because JUCE renders the shape into edge-tables first on the CPU) I guess because there is only a limited time on the message-thread - which is also shared with the host - this can cause unresponsive behaviour. (And too much OpenGL time, also) Besides things what the JUCE-Team can do…