Add text_ui example and update changelog - #211
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…fines - Extract CalculatedClip during ECS extraction for all 4 UI types - Convert to kurbo::Rect via to_kurbo_clip() with NaN/infinity sanitization - Push/pop clip layers in render_frame around each UI item - Skip glyph runs outside clip rect with early exit - Floor UI affine translations to align with integer-snapped clip rects - sort_unstable_by → sort_by for UI queue to prevent order flipping - Skip fully transparent items before pushing clip layers Partially addresses linebender#204. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Replace the 2× font_size margin hack with LineMetrics::min_coord / max_coord from Parley, which give the exact vertical extent of each line including ascenders and descenders. Culling is also lifted from per-glyph-run to per-line, which is both more accurate and slightly more efficient. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Replace the axis-aligned-only culling path (which disabled culling entirely under rotation) with inverse-transforming the clip rect corners into layout space and taking the vertical AABB. This works for any invertible affine including rotation and non-uniform scale. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
VelloSceneDirty(bool) resource gates sort_render_items + render_frame via run_if. detect_vello_scene_changes checks Changed<> on all Vello component types, camera, window, render settings, and asset events. TextLayoutCache — content-addressed double-buffer cache in the render world. Layouts keyed by SipHash of (font ID, text, style, alignment, max_advance). Untouched entries naturally drop after one idle frame. Also includes: - FRAMES_SKIPPED diagnostic (1.0 skipped, 0.0 rendered) - VelloRenderSettings crash fix (now inserted into both worlds) - 9 unit tests for TextLayoutCache including brush-invariance - Anchor helper functions moved before impl block Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
Adds a
text_uiexample demonstrating all 9VelloTextAnchorvariants in a 3x3 grid with debug outlines enabled.Originally added to #206 by @nuzzles. Depends on #208 #209 #210.
Test plan
cargo check -p text_uicargo run -p text_ui— verify 3x3 grid with correct anchor positionsSeries
This is PR 4 of 5:
fix/ui-text-anchor— fix UI text anchor positioningfix/ui-clip-rects— CalculatedClip support, glyph culling, pixel-snap affinesperf/dirty-tracking— skip unchanged frames, text layout cachefix/linux-windowing— add x11/wayland features for Linux compilation