Quick answer: SPIR-V Cross output declaring all resources in set 0 even when source uses multiple sets? Cross-compiler default; specify --resource-binding to preserve.
HLSL uses register space 0 and 1; cross-compiled GLSL has all in set 0. Pipeline layout mismatches.
Pass resource-binding
spirv-cross --resource-binding set 0 binding 0 ...Per-resource binding specification. Preserves source layout.
Or post-process
Output SPIR-V; remap descriptor sets via spirv-opt. Lossless transformation.
Verify in pipeline layout
Generated layouts match source intent. Mismatches surface at validation.
“Cross-compilers make choices. The choices need to be explicit.”
If you control your shader pipeline end-to-end, the resource binding spec is project-wide. Document.