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Post-processing shaders / shaders on displays #169

@RKelln

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@RKelln

I would love a feature to be able to add a shader or multiple chained shaders the final output / display window. Essentially shaders that apply at the end of everything else on whatever is going out to the display.

For various live shows I want a consistent effect (video glitch, etc) that I always want to apply. For an upcoming show that is being projection mapped across 6 walls, they have funky way of sending a 1920x1080 output that has been "pre-squished" then unsquishes to (16*6):9 aspect. I have a shader that can squish, but then I need to clone and apply to every source, which is doable but a pain.

Preferably these shaders uniforms would be addressable over OSC.

Is there any other way to get this effect? I tired making a second display window and doing a display loopback but that doesn't seem to allow to select which window you are doing loopback on?

Thanks!

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