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Release notes: 2026-05-27 — studio-drug-demo-litl

Summary

studio_vertical_demo_frame and studio_shell_demo_frame now compose sim_drug_design (profile 7) via studio_compose_shell_drug_litl so native vertical capture and paint blit use the adaptive LITL inspector layout.

Agent continuation

  1. Read: packages/li-studio/src/lib.li (studio_vertical_demo_frame), docs/game-dev/wgpu-readback-path.md.
  2. Run: lic check packages/li-studio/li-tests/smoke/studio_drug_demo_frame.li; STUDIO_DEMO_PROFILE=7 ./build/li-studio-demo (if built); scripts/studio-verticals-capture-native.sh with present host.
  3. Next: wgpu readback #342; optional C host tick arg if capture needs non-zero LITL stage without Li frame_id.
  4. Blocked: Real studio.adaptive panel IR — layout rects only.

Changed

Area What Evidence
Demo compose Drug profile branches to studio_compose_shell_drug_litl(1280, 720, frame_id, 1) packages/li-studio/src/lib.li
Smoke studio_drug_demo_frame.li frames 0–2 + wider inspector at tick 2 packages/li-studio/li-tests/manifest.toml
Capture script Comment: profile 7 uses LITL adaptive layout via Li frame_id scripts/studio-verticals-capture-native.sh

Not changed

  • lig_present_blit_paint_summary / li_rt_lig_present_blit_rgba8 contract (viewport from gui_viewport_region_from_layout; tag_h 27 for profile 7)
  • Non-drug vertical demo compose (studio_compose_shell_palette)
  • wgpu swapchain readback (#342)
  • sim.drug_design chemistry payloads

Breaking

N/A — demo path only; public API unchanged.

Security

N/A — no trusted surface change.

Performance

N/A — same paint/chrome path; drug layout widens inspector (narrows viewport region for blit dims unchanged at 1280×720 gate).

Downstream

Repo Action
benchmarks / demo PNGs Re-run studio-verticals-capture-native.sh for sim_drug_design.png when present host available
N/A —

CHANGELOG entry (paste into Unreleased)

### Added
- **Studio drug vertical demo:** `studio_vertical_demo_frame` uses `studio_compose_shell_drug_litl` for profile 7 — [2026-05-27-studio-drug-demo-litl.md](docs/release-notes/2026-05-27-studio-drug-demo-litl.md).