GPU accelerated highpass filter for Shadertoy.
- Source : Connect the image you want to apply the effect onto. (RGBA)
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Contrast : Adjust contrast.
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Saturation : Adjust saturation
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Clamp values : Clamp values above 1.
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Comp on bg : Comp resulting effect on original image.
- Source is premultiplied : Checked if source image is premultiplied.
- Use mak : Use mask input.
- Invert mask : Invert input mask.
- Channel : Channel used as mask.
- Mix : Mix result with original image.
- RGBA