[BUG] image/pixel copy to buffer fails to copy correctly for AMD cards

[matthewsgc]

Describe the bug
Changes with episode 78 - pixel perfect object selection produce odd results, sometime the right value, sometimes zero, sometimes seemingly random high values. The issue is created when copying from the image to a buffer. While RenderDoc shows perfect image creation, the results from the copy are not.

To Reproduce
I am using a AMD Radeon RX 5700 XT - I am guessing any AMD card would do.
Try the hover functionality - see occasionally weird "object ids" appear, and mostly 0s, very rarely, the right object id

Expected behavior
return the correct object id

Screenshots

Desktop (please complete the following information):

• OS: Windows 11
• Card: AMD Radeon RX 5700 XT, latest drivers etc.
• Version [e.g. 22]

Additional context
The solution to the problem is to change the image tiling on the colour attachment image from VK_IMAGE_TILING_OPTIMAL to VK_IMAGE_TILING_LINEAR. Note this cannot be a global change for depth attachments require image tiling to be set to VK_IMAGE_TILING_OPTIMAL.