How to make a decal fade out uniformly?

[APileOfSaltRocks]

Godot Version

4.6.1

Question

so I’m trying to implement a drop shadow for a 3D platformer and for that I’m using a Decal node. However the problem I’m having right now is that I cant get it to fade out as “uniformly” as I would like if that makes sense. I want it to be a lot more circular if possible.

I did play around with Vertical Fade some and that kind of helped kind of didn’t. is there a way I can fix this in code or in the parameters? or is this a matter of me needing a better texture cause right now I’m just using the default Godot Logo and modulating it all black for my texture.

[normalized]

You should use a circular gradient texture.

[APileOfSaltRocks]

so I did find a circle gradient texture should work

the problem is that I cant figure out how to use it for lack of a better word. cause if you look at it in game it looks like the decal is only reading from a single axis of the texture and Im not sure how to change that.

[normalized]

You need to properly rotate the decal node so it projects the texture down to the ground. Currently it looks like it projects it horizontally.

[APileOfSaltRocks]

I see, that makes way more sense.
Now I just need to get rid of the white part of the texture

[normalized]

Use a transparent texture

[APileOfSaltRocks]

There we go

eventually I just had to give up and make my own texture.