forked from 1b-agent/opencadstudio-upstream
Hakan SevenandClaude Opus 4.8
0f40cfa054
Phase 3.2 (wire pan path). Wire vertex buffers are world-space, so a camera move changes only the view_proj uniform (uploaded every frame), never the wire data — yet upload_wires re-ran on every camera_generation tick, re-packing vertices and re-writing the GPU buffer on each pan. Stamp every Model-tile re-tessellation with a monotonic content id (WIRE_CONTENT_GEN), reused when a pan reuses the tessellation. The pipeline records the resident buffer's id and skips upload_wires when the incoming id matches. The gate is pulled out of the (epoch, camera_gen) block so a preview/interim wire change still uploads even with a static camera; non-tile paths and overlay frames force a fresh id, preserving current behaviour. Monotonic id sidesteps the ABA hazard a freed/realloc'd Arc pointer would carry. Pairs with the pan tessellation reuse: a pan now skips both the CPU re-tessellation and the GPU wire upload. Co-Authored-By: Claude Opus 4.8 <[email protected]>