forked from 1b-agent/opencadstudio-upstream
Hakan SevenandClaude Opus 4.8
896b6c385c
Wires the SDF glyph atlas into the render loop end-to-end for top-level TEXT entities, gated by the OCS_TEXT_SDF env var so the default path is unchanged. Verified rendering on a real drawing: glyph quads land exactly over the existing stroke text (position, size, rotation), confirming the atlas → shader → pipeline → screen path and the RTE / UV math. - text::text_run_placement — extracted from to_truck (behaviour-preserved) so the stroke and SDF-quad paths compute an identical run placement. - sdf_atlas::text_atlas — process-wide GlyphAtlas (Mutex/OnceLock), shared by the collector (bakes glyphs) and the GPU upload (reads texels). - Scene::sdf_text_vertices — collects per-glyph TextVertex for the frame's TEXT entities via layout_glyph_quads + push_glyph_vertices. Empty unless OCS_TEXT_SDF is set. - ViewportData.text_verts + Pipeline text_pipeline/atlas/vbuf, upload_text (rebuilds the R8 atlas texture when it grows), and a text render pass drawn over the wires. Still additive over the stroke text; only top-level TEXT is wired (MTEXT, attributes, and block-internal text are next), and the collector re-runs per frame (vertex caching by geometry epoch is a follow-up). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>