VK_KHR_FRAGMENT_SHADER_BARYCENTRIC extension missing from Intel Arc drivers

[AdrianL]

Hi,

I'm working on a ray tracing game that requires the VK_KHR_FRAGMENT_SHADER_BARYCENTRIC extension. It works fine on NVidia and AMD GPUs but the extension is showing as not available on my Intel Arc test PC. Are there plans to add support for this extension and/or release drivers supporting Vulkan 1.4 across all Intel Arc hardware?

Thanks.

[Mike_Intel]

Hello AdrianL,

Thank you for posting in Intel community Forum.

For me to better understand and diagnose the issue further, let me ask you to provide detailed responses to the following questions. This information will help me isolate the problem and determine the most appropriate course of action moving forward.

1. What is the model of your Arc Graphics?
2. What is the title of the game that you are testing?
3. If you can also provide some screenshots of the issue, please end it.
4. What are the troubleshooting steps that you tried?

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[Mike_Intel]

Hello AdrianL,

I hope this message finds you well. 

Were you able to check the previous post?

Please let us know if you still need assistance.

Best regards,

Michael L.

Intel Customer Support Technician

[AdrianL]

Thanks Michael,

What is the model of your Arc Graphics?

It is an ultra 5 125h

What is the title of the game that you are testing?

It is an Indie game that I am developing in Vulkan and is not yet released.

What are the troubleshooting steps that you tried?

The latest drivers are installed, dated 19/08/25. As well as my code reporting the extension is not available I have run "VulkanInfo" at the command prompt and that is reporting the extension is not available too. This is most likely because the current drivers do not support Vulkan 1.4.

Vulkan 1.4 appears to be supported by the other graphics card vendors. I would like information as to if/when 1.4 will be supported across all Intel Arc hardware, i.e. A series, B series and other processors with integrated Arc graphics.

Many thanks

Adrian