topic Re: Shader issue with HD3000 in Graphics

Shader issue with HD3000

IB3 — Wed, 28 Aug 2013 19:03:06 GMT

Hello,

We are developing a software that uses OpenGL for 3D rendering.

And when compiling a fragment shader we have this issue:

Unable to create program:The fragment shader uses varying vInfo, but previous shader does not write to it.

Indeed, my fragment shader uses that varying 'vInfo' and my vertex shader might does not write to it.

But this works on every other graphic card brand we have.

I have reproduced that on the latest driver (9.17.10.3223)

Any explanation of why this is not working for HD3000 graphic card ?

Re: Shader issue with HD3000

DArce — Thu, 29 Aug 2013 16:40:31 GMT

Thank you for your feedback on this matter.

I will forward your question to the appropriate team for further investigation.

You may check on this through the http://software.intel.com/en-us/forum Forums | Intel® Developer Zone for support for these concerns

Re: Shader issue with HD3000

IB3 — Thu, 29 Aug 2013 16:58:23 GMT

Thank you, I have checked the forum but nothing seems to be related to what I encountered.

I'm looking forward to your investigation results.

Re: Shader issue with HD3000

DArce — Fri, 30 Aug 2013 14:24:44 GMT

You are welcome. I will let you know as soon as I have an update on this.

Re: Shader issue with HD3000

DArce — Tue, 03 Sep 2013 21:46:30 GMT

eban, I would like to inform you that we are aware of the issue and by now it is under investigation

While this is permanently fixed, you may try assigning any value to the vertex shader varying in order to prevent the behavior as a work around. That way it will not be cut out by the shader optimizer.

Please, don't hesitate to provide any further feedback on this if needed.

Re: Shader issue with HD3000

IB3 — Tue, 03 Sep 2013 22:03:30 GMT

Thanks for the quick answer.

Any idea of when a fix would be available ?

Re: Shader issue with HD3000

DArce — Wed, 04 Sep 2013 15:56:11 GMT

At this moment we do not have an estimated time for this to be available as it seems that investigation is still being done for this, we'll let you know as soon as we have an update on this.

Re: Shader issue with HD3000

IB3 — Thu, 09 Jan 2014 22:08:53 GMT

Any news on that subject ?

Re: Shader issue with HD3000

Kevin_M_Intel — Fri, 10 Jan 2014 16:01:49 GMT

Hello eban,

I am sorry for the delay on this process but we have not received information yet. Have you tried with the latest graphics drive?

Just in case it can be downloaded at the following link:

https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=23377&lang=eng&OSVersion=Windows%207%20(64-bit)*&DownloadType=%0A%09%09%09%09%09%09%09Drivers%0A%09%09%09%09%09%09

In case this has been done, please post your dxdiag report here.