No OpenGL shader code

Developer Tools Nsight Graphics
1

I try to inspect a Qt application which uses a Qt3DWindow (thus OpenGL). My shaders are stored and linked as a resource and will be loaded from there at run time. Nearly everything works fine, except that I never can see the shader code. The “Linked Shader State” is always “N/A because linked from binary”. Is there a place where I can copy the shader sources to, to solve this problem?

2

My environment:
NSight Graphics 2019.6.0.0, Build 27607391
GeForce GT 1030, driver version 441.20, Win7-64

3

Just some more information:
I’m starting my application per QuickLaunch always and I’m using the FrameDebugger. In very rare cases I can see the shader code. It seems to be under the following conditions:

  • The application is not in the "Application Executables" list already, i.e. has never been started before
  • The application is the first one that will be startet after NSight Graphics has been started, may be even after the PC has been booted
4

Hello,

Thank you for your feedback on Nsight Graphics. In talking to the engineer unfortunately there is no capability of post-link association at this time.

Sorry about the inconvenience.

Regards,

Darrell

5

Thank you very much. I see, there is no capability of post-link association at this time, i.e. there is no workaround for the problem. But the problem still exists:

  • In most cases, the "Linked Shader State" is always "N/A because linked from binary"
  • In very rare cases I can see the shader code, for conditions see #3

So this seems to be a bug anyway, isn’t it?

6

Yes. I will go ahead and file a bug for our internal engineering team to investigate the persistent issue.

7

Hello,

As a workaround you should be able to compile the shaders on the fly by embedding the source and not a binary version.

Darrell