fix: Metal vertex descriptor + update deps (v0.19.5)#93
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Metal requires an explicit MTLVertexDescriptor when the vertex shader has input attributes. Without it, pipeline creation fails with: 'Vertex function has input attributes but no vertex descriptor was set.' - Add buildVertexDescriptor() mapping WebGPU VertexBufferLayout to Metal - Add vertexFormatToMTL() with all WebGPU vertex format mappings - Add vertexStepModeToMTL() for per-vertex/per-instance step modes - Expand MTLVertexFormat constants (20 → 33) for full WebGPU coverage Fixes gogpu/ui#23
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This was referenced Mar 5, 2026
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Summary
MTLVertexDescriptormapping from WebGPUVertexBufferLayout. Without it, Metal fails with "Vertex function has input attributes but no vertex descriptor was set."MTLVertexFormatFixes gogpu/ui#23
Test plan
go test ./...)