Reveal Shader : Semi transparent objects for unknown reason

Unity Engine
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1

Hi,

I’m making a reveal shader (the alpha switch from 0 to 1 based on a distance), it’s working quiet fine but I have some of my objects that half dissolve depending on the view.

Edit : In fact I reproduce with just an Empty Graph with surface set to Transparent… disturbing…
Edit 2 : Ok now that I narrowed the problem I found threads explaining the simpliest solution is to use opaque with alpha treshold as transparent surface has z depth sorting problems… Works for me.

For example here is a cylinder with the shader, it’s ok:
7109104--848050--RevealShaderOK.png
But If I move a bit the Camera it becomes semi visible (lighting is baked)
7109104--848053--RevealShaderKO.png
And the reveal effect is working fine when I set the distance :
7109104--848059--RevealShaderDissolve.png

Here is the shader graph :

7109104--848056--RevealShaderGraph.png
7109104--848056--RevealShaderGraph.png1294×468 64.2 KB

The objects have no scripts on them, so it’s not a code side effect.

The ground uses the same shader, and it looks like from some view it is rendered in front of the cylinder while it should be behind…

I guess I don’t understand a transparent or clipping shader concept… any help please?

Thanks,
Thomas

2

Instead of marking something resolved, perhaps you could share the solution? If your edit 2 is the answer, it might better to just answer to your own question so that it’s obvious what the solution was.That way you could help others.

3

Here is the answer in case my edits confuses anyone else like Olmi :

Answer :
The problem is that I used “transparent” surface mode for the shader, and transparency has z-depth sorting problems (resulting on the ground rendered in front of the cylinders sometime). The simpliest solution (found in another thread) is to use “opaque” surface mode with alpha treshold.

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