Hello everyone,
Back with another noob question.
I have discovered a process that allows me to create a radial gradient within a material, using VectorRadial etc…
It works fine, but how I go about using just a semi circle? As in half the circle being equal to 1 and not 0.5
It’s kind of hard to understand what you need. Can you show an approximate image of what you want?
Hmm, that I would do with a texture 
Circular progress bars:
I’m pretty sure it may be done easier, but here’s how I managed to make it fully procedurally:
Then you change the Threshold value from 0 to 0.5 and you have this:
Remove the generated band and change the Threshold from 0 to 1, and you’ll have a full circle instead.
One important addition: the TexCoord is [1, -1]; [1, 1] doesn’t work.
And the Mask after the VectorToRadialValue node is unnecessary, it already returns a grayscale value.
