Shader issue with HD3000

[IB3]

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 ?

[DArce]

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

[IB3]

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.

[DArce]

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

[DArce]

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.

[IB3]

Thanks for the quick answer.

Any idea of when a fix would be available ?

[DArce]

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.

[IB3]

Any news on that subject ?

[Kevin_M_Intel]

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.