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Alexius0815andClaude Opus 5.5
2b9c131e0c
Since #3878 every vertex program that exports a position also writes gl_ClipDistance for the all-zero position distance. The tessellation stages generated for rect lists declared only gl_Position in gl_in, so their input interface no longer matched the vertex outputs; on MoltenVK the control stage then reads all-zero positions and every rect-list draw stops with "rect-list requires finite nondegenerate axis-aligned positions" (reported in #1). The control and evaluation stages now declare the vertex program's gl_ClipDistance array in their per-vertex blocks and forward it. The generated fourth corner gets the clip distances interpolated with the same weights as its position, so the all-zero position clip keeps working for rect lists. Validation accepts gl_ClipDistance as a tessellation input and as a tessellation-control output. Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01QXdkh9PHBCPqGcGQPeikAe