Streamline incompatibility with VK_EXT_descriptor_heap

[guardbandclipper]

When using VK_EXT_descriptor_heap, DLSS and DLSS-G are unable to read user-provided images. DLSS output is black. DLSS-G generates an image, but it's the same as if no motion vectors were provided. Debug visualizations are black for all user-provided images.
There are no errors and all images are still being created with the correct parameters, including the image view.
Binding a dummy descriptor set right before evaluating the DLSS feature seems to restore some funcionality, but the workaround doesn't work for DLSS-G since there is no evaluate call.

[jake-nv]

And the integration of those two features works correctly when you stop using VK_EXT_descriptor_heap?

Any chance you have a repro sample you could provide?

nvbug: 6436675

[guardbandclipper]

Yes, both DLSS and DLSS-G work when using descriptor sets.
One call to vkCmdBindDescriptor sets (with a dummy descriptor set that isn't used anywhere else in the application) is enough to make DLSS work, but the same workaround cannot be applied to DLSS-G since evaluation is handled internally by Streamline.
Unfortunately I cannot provide a repro sample, as the application is under NDA.