Quote from: Matt on December 23, 2019, 07:07:28 PMI thought you wanted a smooth ramp from 0 to 1. But maybe I don't understand what you're trying to do. Are you saying that you want the outside areas to remain black but increase the value at the edge, e.g. 0.3? This would create a hard jump from black to 0.3. Is that what you want?
If you you want a smooth ramp but you want to expand the area, I would just enlarge the dimensions of the shape.
The only interpolation mode that could be left unclamped is "Bevel", but it's clamped for consistency with the other modes. It shouldn't be a problem in practice because there are other ways to achieve the same result as an unclamped version.
To try to save on shaders. I often try to use as few shapes as possible and just alter them, ramping up and down for different isolation within the shape. This usually involves just the white point, but sometimes I need that soft border to be hard, which if you don't want to actually brighten the white point from center, you need to use the black point.
I'm not sure why adding such a simple switch functionality (from default to main input) is such a bad idea to give the shader more flexibility without further input, such as a constant colour floor input. I actually forgot I could even do that.
And I don't know what is so confusing... you have included a Colour Adjust Shader in Terragen, which is designed to work with white point and black point levels (similar to photoshop). This allows you to control the black point (not white) or the white point (not black). It would be nice to do this on the simple shapes out of the box without the need for a main input. Changing the shape dimensions is not a fix, and would change the entire shader setup and other colour adjusts, etc, and leave me with the same problem at the end, at a different dimension.
The problem is I simply cannot control the black point to the border of the radius without a main input to change the default clamped floor.