Loading screen, off-main scene build, and folder-as-tile rendering #2

Merged

bnied merged 0 commits from refs/pull/2/head into main

2026-06-07 18:28:31 +00:00

bnied commented

2026-06-07 18:27:11 +00:00

(Migrated from codeberg.org)

Performance and UX overhaul for opening large folders, plus assorted
scene/layout polish.

Rendering performance (fixes the freeze on big folders like ~/Code):

Subfolders now render as a single tile (folder glyph + name) instead of
a platform hosting every nested file. A level's node count is bounded by
its direct item count instead of exploding with tree depth/density.
Build the level node tree off the main thread (Task.detached), then GPU
prepare it (SCNView.prepare) on a background thread before attaching, so
neither construction nor first-render texture upload blocks the UI.
Texture rendering (labels, SF symbols) made thread-safe via an
NSBitmapImageRep-backed context (2x scale) instead of NSImage.lockFocus.
Only full-size root slabs/tiles cast shadows; mini/icon/label planes
don't, cutting shadow-map cost.

Loading screen:

Full-canvas scanning overlay (scope motif, folder name, amber scan bar)
shown during scan AND scene build; held until SceneKit draws the first
frame (render delegate) so there's no black gap or scan->freeze->pop-in.
Empty state and overlay are mutually exclusive (no blend on first open).

Sidebar dismiss:

Sidebar toggle lives in the in-scene TopBar (the window toolbar is nil'd
to suppress the macOS 26 fullscreen stripe, which also removes the native
NavigationSplitView toggle).

Scene/layout:

Larger file slabs and icons, more grid spacing, longer file labels.
Closer default overview framing (tighter fit than the bounding sphere).
Folder plates use Theme.folder blue, consistent with the sidebar.

Cleanup:

Removed dead code: gridCellHalfExtent, labelMaxWorldWidth, gridStep stash,
makeMiniSubdirNode, makeContentLabel, subdirPlatformWidth, focus-in-place
machinery, and the mini-grid constants.

Performance and UX overhaul for opening large folders, plus assorted scene/layout polish. Rendering performance (fixes the freeze on big folders like ~/Code): - Subfolders now render as a single tile (folder glyph + name) instead of a platform hosting every nested file. A level's node count is bounded by its direct item count instead of exploding with tree depth/density. - Build the level node tree off the main thread (Task.detached), then GPU prepare it (SCNView.prepare) on a background thread before attaching, so neither construction nor first-render texture upload blocks the UI. - Texture rendering (labels, SF symbols) made thread-safe via an NSBitmapImageRep-backed context (2x scale) instead of NSImage.lockFocus. - Only full-size root slabs/tiles cast shadows; mini/icon/label planes don't, cutting shadow-map cost. Loading screen: - Full-canvas scanning overlay (scope motif, folder name, amber scan bar) shown during scan AND scene build; held until SceneKit draws the first frame (render delegate) so there's no black gap or scan->freeze->pop-in. - Empty state and overlay are mutually exclusive (no blend on first open). Sidebar dismiss: - Sidebar toggle lives in the in-scene TopBar (the window toolbar is nil'd to suppress the macOS 26 fullscreen stripe, which also removes the native NavigationSplitView toggle). Scene/layout: - Larger file slabs and icons, more grid spacing, longer file labels. - Closer default overview framing (tighter fit than the bounding sphere). - Folder plates use Theme.folder blue, consistent with the sidebar. Cleanup: - Removed dead code: gridCellHalfExtent, labelMaxWorldWidth, gridStep stash, makeMiniSubdirNode, makeContentLabel, subdirPlatformWidth, focus-in-place machinery, and the mini-grid constants.

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spaceduck/neofsn!2

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