Upgrading to 2020.2.4 - unrecognized identifier 'UnityTexture2D' in VFX Shader Graph

Unity Engine
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1

Hi. In upgrading from from 2020.2.2 to 2020.2.4 - I’m now getting the following error:
Shader error in 'Hidden/VFX/ChimneySmoke/System/Output Particle Quad': unrecognized identifier 'UnityTexture2D' at line 2313 (on d3d11)

This is in a VFGraph where I have Shader Graph Vfx setup for an output particle quad. I tried recreating the quad output node, and recreated the shader graph, and I’m still get the error. I tried revering back to 2020.2.2, and I’m still getting the error. I’m baffled. Any suggestions in how to problem solve?

In the shader it’s simply a 2dTexture, and flipbook sampling.

2

Hi, it sounds like it might be this issue.

Did you recompile the VFX / ShaderGraph? Also, did you upgrade the VFX or ShaderGraph packages when you switched to 2020.2.4?

3

Yeah, I recompiled after reverting back, and it still produces code with unknown UnityTexture2D. I didn’t do anything special when going to 2020.2.4. Just got the new version from the hub, and selected my project with the new version. By the time it finished loading, I had the new errors. I’ve not touched those shaders since before my upgrade to 2020.2.XXXX, I would have guessed they would have been rebuilt when I upgraded to SG 10 when updating from 2020.1.XXXX.

4

Experiencing the same issue with virtually the same series of events as exblade describe above, except moved from 2020.2.3 to 2.4 (most recently).

5

Yes, it’s a valid issue. Please feel free to upvote the case and stay tuned for a fix :slight_smile:

6

Upvoted, thanks. My workaround for the moment is getting rid of a Output Particle Octagon node.

7

You changed the reference name of this variable, delete and create again, it will work.