Unlit transparency cutout... mobile compatible?

Unity Engine
1

Unfortunately, shaders are not my strong suit (I really need to spend some time teaching myself more about how to write them), but I want to do something like this:

however, I want to do it using a PNG with alpha/transparency (so that it can be an icon, in this case a “ring” that surrounds an object), and furthermore I want it to be unlit (unaffected by lighting/shadows) and to work well on mobile

If I use the regular cutout option, it is affected by lighting and shadows.

I found something online (a wiki? answers page? don’t remember) but wasn’t able to get it to work

Any suggestions?

2

Was able to find this one, and it seems to work (haven’t tested yet on mobile)…
http://www.androidgames.zone/collective-knowledge/unity3d/2-unity-unlit-transparent-cutout-shader-backface

Is there a way to find the source code of the built-in standard shaders, for reference or to work from if we ever need to make small tweaks?

And does anybody have a recommendation for the best way/place to learn shaders (custom coding them) in general? (Website, book, video, whatever)

Thanks!

3

Hi @guru20

Is there a reason the built in sprite shader doesn’t work for you? I think it does a lot of the things you ask.

Here is a link to the built in shaders source code:
Builtin Unity shaders source

4

Was having trouble getting sprite shader to work in VR… maybe I’m doing something wrong?