Quick answer: Vulkan asset upload failing with 'buffer too small' on large textures? Default staging buffer is 16MB - resize or chunk uploads.
8K HDR texture (~256MB) upload fails. Smaller textures work.
Resize staging
Per asset, resize the staging buffer to fit. Reset after upload; or keep at max.
Or chunk the upload
Upload texture in 16MB chunks; staging buffer reused.
Use VMA for dynamic
Vulkan Memory Allocator. Buffer pools size automatically; less manual tuning.
“Staging is intermediate. Intermediate has to fit.”
If you ship games with large textures, staging buffer strategy is part of the engine design. VMA handles most cases.