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I am making a simple edge detector group, and I want to expose a value to its input. The only problem is that the value I want to expose is mapped differently than I would like. It goes from -1 to +1. I want to create a slider that controls this value such that the slider goes from 1 to 0 (backwards) instead of -1 to +1.

Here are images:

Node Stuff

Slider Invert

Hopefully this makes sense.

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So I found the solution pretty quickly! I just needed a "Map Range" node.

Here's a link to the documentation: https://docs.blender.org/manual/en/latest/compositing/types/vector/map_range.html

The Fix

Hopefully this will help someone in the future.

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  • $\begingroup$ Feel free to accept your own answer as correct. $\endgroup$ – Allen Simpson Nov 25 '20 at 21:47
  • $\begingroup$ Sure thing, can't do it for a couple days though. $\endgroup$ – Jay Nov 25 '20 at 21:59

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