Radial transparency fade

[SparkyNZ]

(07-17-2020, 06:34 AM)Ofnuts Wrote: Use a layer mask:

• Layer>Mask>Add layer mask, initialize to white. From that point on you are editing the mask
  
• Draw a white(center)-to-black radial gradient
  

Note that the darkness of the gradient is realy a measure of how far you are from the center. Using Curves/Levels on that gradient on the mask you can alter the gradient and define radius-opacity relationship:

Thanks for the reply. You manage to do exactly what I want to.. but I must be missing a step somewhere. In Layers, I have the white layer mask selected, and I've added a red background layer like you did. Gradient Mode is set to Normal, and I'm using FG to Transparent as the Gradient type.


I can't seem to get it working like you did. Here's an example of what I see with Mode set to "Difference". "Normal" doesn't seem to have any effect at all. My Opacity is set to 50%



Update: I think I found where I went wrong - Just changed the Gradient to "FG to BG" and it seems to be working better:



Not perfect but I think I'll get there with a bit more experimentation! Thanks heaps!