Lightningbeam/lightningbeam-ui
Skyler Lehmkuhl 318720f89d Fix gamma handling and improve brush canvas performance
Color correctness:
- Unpremultiply before the sRGB OETF on the display and export blits;
  encoding premultiplied color corrupted antialiased/transparent edges.
- Tag exported video as full-range BT.709 (matrix/primaries/transfer).
- Run perception effects (invert, brightness/contrast, hue/saturation)
  in gamma space to match standard editors.
- Interpolate gradients in gamma space across the raster and vector paths.
- Render effect thumbnails in the same linear space as the live pipeline.

Brush performance:
- Store the raster canvas as Rgba16Float (no shadow banding from 8-bit
  linear), with an incremental per-tile ping-pong sync replacing the
  per-frame full-canvas copy.
- Do the linear->sRGB readback conversion on the GPU and reuse a cached
  scratch texture, dropping a ~110ms-per-stroke CPU decode.

Cleanup:
- Single COLOR_WGSL prelude and shared CPU sRGB scalars instead of ~8
  duplicated copies of the transfer functions.
- Shared compute-pipeline builder; smudge folded onto the tile-sync path.
2026-06-16 08:32:39 -04:00
..
beamdsp Code cleanup 2026-02-19 11:19:44 -05:00
egui_node_graph2 highlight node connections directly 2026-02-20 11:13:34 -05:00
lightningbeam-core Fix gamma handling and improve brush canvas performance 2026-06-16 08:32:39 -04:00
lightningbeam-editor Fix gamma handling and improve brush canvas performance 2026-06-16 08:32:39 -04:00
.gitignore Add Rust desktop UI with Blender-style pane system 2025-11-12 06:13:00 -05:00
Cargo.lock Add automatable volume and pan control to default instruments 2026-03-23 23:27:05 -04:00
Cargo.toml Add amp sim 2026-02-21 09:43:03 -05:00
build-static.sh Video export 2025-12-07 13:17:21 -05:00
build-windows.bat windows build fixes 2026-02-24 14:40:16 -05:00