`RHI/RayTracing` sample does not work on either Vulkan/dx12, Windows/Linux

[martinwinter-huawei]

Describe the bug Testing both o3de and atom-sampleviewer on their latest development branches, the RHI/RayTracing sample does not work and also crashes sometimes. The output is either the grey background or sometimes flashing images of the correct output and sometimes it crashes in Vulkan::Queue::SubmitCommandBuffers() after the final GetContext().QueueSubmit().

This appears to be different from the issue #621.

Steps to reproduce Steps to reproduce the behavior:

1. Checkout the most recent version of o3de and the o3de-atom-sampleviewer
2. Try to run Samples/RHI/RayTracing on Windows/Linux with either -rhi=vulkan/dx12

Expected behavior There is visual output.

Actual behavior Grey background and recurring freezes.

Found in Branch development

Desktop/Device (please complete the following information):

• Device: PC
• OS: Arch Linux/Windows 11
• Version Up-to-date
• CPU Intel i9-12900KF
• GPU NVidia RTX 3090
• Memory 64 GB

[martinwinter-huawei]

On that note, manually tried to start all samples on Linux and found the following issues:

• Samples
  • Checkerboard (crash)
  • LightCulling (short flicker and then only gray background)
• Performance
  • 100KDrawable_SingleView (gray and no imgui interface anymore)
  • 100KDraw_10KDrawable_MultiView (same)
• RHI
  • RayTracing (grey and/or crash)
• RPI
  • SceneReloadSoakTest (1 image, then gray)

[martinwinter-huawei]

Tested on Windows as well, the same samples do not work (except for RPI/SceneReloadSoakTest) as on Linux.