Custom GLSL shader code as an image filter

I’m not sure how the image filters (black and white, sepia, etc.) are implemented internally but I’d assume they’re some sort of shader. It would be really great to be able to have a “custom shader” filter w/ a text field (where we can put the shader) and the expose some basic variables in order for us to create custom shader code to implement filters that are not available. And theyre flexible and powerful :slight_smile:

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