I forgot how to control raytraced shadows' transparency
Can someone tell me how to get the raytraced shadows to look more transparent, please?
I remember that on a project with the solar system, I used some settings for an object, so that I could control how (in example) a planet's ring's shadow would shade the planet, all the way to the point of making the shadow fully transparent.
I think it was under Raytrace of the object's attributes, but now I cannot seem to find anything related to the shadows for what I am working on.
Light used: Spotlight.
Problem: shadows are thick-black.