Capture components not producing output; possible driver issue

Development Rendering
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We have a camera that leverages a Capture Component internally, and several users have reported totally blank/null output. Some machines are unaffected but others show this behavior consistently which leads me to think this is a hardware/driver issue. Specifically,

  • a machine configured with an RTX 4070 Laptop GPU, v32.0.15.7602 works fine, and
  • a machine configured with Intel(R) Iris(R) Xe Graphics v31.0.101.4091 does not (blank output)

Unfortunately, we lack the resources to examine this on other, similarly-configured hardware.

Is the Intel Xe Graphics system known to have rendering issues (either this version or in general)? Hardware has been a mystery for us with a number of issues that only occur in certain configurations; are there any good strategies/tools/resources for reducing the likelihood of these kinds of issues? How can we quickly identify if a rendering failure (either in part, “images look weird”, or in full, “all black/no data”) are driver/hardware related?

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Steps to Reproduce
Of the machines we have, it appears that Capture Components do not produce output on machines configured with Intel(R) Iris(R) Xe Graphics v31.0.101.4091.

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Hi there,

I see in the video that there is some interaction here with MATLAB tools. Are you able to provide reproduction steps for this issue that don’t require any third party software? By the capture component, I assume you mean the USceneCaptureComponent2D. This is usually used to render to a render target in Unreal. However, from the video you seem to be interfacing with MATLAB somehow. Are you able to give detailed reproduction steps, or provide a reproduction project (without any third party software requirements) so that I can help debug this issue for you.

In terms of general rendering issues, you can try checking Unreal’s issue tracker, checking to see if others have reported similar issues on this pro support forum, or making a new post, as you have done here. Testing this on two different machines also somewhat confirms that this is probably a hardware or driver issue. You may want to check your log output, if you have not done so already, to see if there are any relevant logs on the hardware where this is not working. Given that Intel Iris Xe is an low-end integrated graphics card, it may be that the features required to do what you are trying to do are simply not supported on this device.

Regards,

Lance Chaney