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Nice! It's a bit unfortunate that OSX doesn't support OpenGL 4.3 which is needed for this project. It currently only supports OpenGl 4.1. I'm currently toying around with a similiar project where I would have enjoyed to try out compute shaders.

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From what I've read, you can get pretty good performance on an iPad Pro. Here's 8M pixels:

http://flexmonkey.blogspot.com/2015/11/a-first-look-at-metal...

The author provides the source. Portable to the Mac?

https://github.com/FlexMonkey/ParticleLab

It's an XCode project: I'm pretty sure it works on Mac. However the code uses Metal, which does not have a C/C++ API. I'll wait for Vulkan to be available on Mac.

I think, there is a possibility to not use the core-OpenGL but kind of upgrade to the legacy-version.

But I don't know much about that...

Turns out, there is not. No way to get over OpenGL 4.1 on OSX, sorry...

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