From db61a4743583b731eafc4828862ddb5a70d9ed37 Mon Sep 17 00:00:00 2001 From: dotCooCoo Date: Sat, 7 Nov 2026 09:16:05 -0800 Subject: [PATCH] Docs: the region-building line gives the latest Divide timings and more of the commands that use it The line names trapping, Intertwine and the Pathfinder effects next to Divide, Hard Mix, Soft Mix, Shape Builder and Flatten Transparency, and gives six alternating runs of each build of Divide on 3,000 overlapping rectangles, timed on this branch's final code. --- docs/target-app-parity.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/target-app-parity.md b/docs/target-app-parity.md index c87bbd017..8e8712100 100644 --- a/docs/target-app-parity.md +++ b/docs/target-app-parity.md @@ -1333,7 +1333,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur With Overprint Preview or Separations Preview on, the renderer keeps the art it prepared for the preview from one frame to the next. It prepares again the objects that changed, and all of the art when Discard White Overprint changes or, with Separations Preview, when the plates shown, the proof setup, the swatches, the Spot Colors option or the color settings change or a profile is loaded. It draws the other objects from the art, geometry and stroke outlines it kept for them. The Pathfinder panel, Offset Path, Clean Up, Divide Objects Below, Make and Release Blend, Envelope Distort's Make and Release, Repeat (Radial, Grid, Mirror and Release), Vector Halftone, New and Redefine Symbol, Delete Symbol, erasing with the Symbol Sprayer, Rasterize, Convert to Artboards, Flatten Transparency, Clear Guides, Shape Builder, Live Paint, Release Image Trace, Make and Release Opacity Mask, Delete with direct-selected anchor points, Remove Anchor Points, Cut Path, and the Shaper, Knife, Eraser, Path Eraser, Line Cut, Rectangle Cut, Mirror & Cut and Blob Brush tools add and remove objects in one pass over each layer or group they change, and Outline Stroke and Expand write each new object in the place of the object it replaces (#1429). Offset Path looks up the segments near each candidate hole or island in a tree of the source path's segment bounds when it decides whether to drop that contour, instead of testing the bounds of every segment. The output paths are the same. On compound and open paths of 25,000 to 40,000 anchors with 6,400 to 11,976 candidate contours, that check takes 11 to 13 ms instead of 140 to 649 ms (medians of five interleaved runs). The limit on overlapping segment pairs is the same, so a path that stops with "Offset Path: the path is too complex to offset" still stops there. - Divide, Hard Mix, Soft Mix, Shape Builder and Flatten Transparency list the shapes that cover each region when they find the distinct regions of an arrangement, instead of keeping a flag for every shape, so that step's time and memory follow how many shapes cover each region rather than how many shapes there are. The regions, their order and the output are the same. Divide on 3,000 overlapping rectangles takes 0.73 to 1.15 billion CPU cycles on its thread instead of 1.49 to 1.73 billion (dev build, on a machine loaded by other builds). + Finding the distinct regions of an arrangement lists the shapes that cover each region instead of keeping a flag for every shape, so that step's time follows how many shapes cover each region rather than how many shapes there are. Divide, Hard Mix, Soft Mix, Shape Builder, Flatten Transparency, trapping, Intertwine and the Pathfinder effects are among the commands that use that step. The regions, their order and the output are the same. Divide on 3,000 overlapping rectangles takes 0.84 to 1.13 billion CPU cycles on its thread instead of 1.25 to 1.46 billion (dev build, six runs of each, alternating, while other builds were running). With more than 10,000 type on a path objects selected, the Selection and Direct Selection tools neither draw nor hit-test the objects' brackets. The renderer outlines the stroke of a path object with more than 1,024 path elements, without dashes or a width profile, only in and around the view, with a margin of the view's size on each side, and outlines it again when the view moves past that margin. The pixels are the same. At 1600 × 1200, the frame after one anchor of an open path of 200,000 anchors moves takes 28 to 30 ms instead of 103 ms, and with a closed path of 50,000 anchors 10 ms instead of 30 ms (`cargo run --release -p vectorcraft-engine --example anchor_bench`). The renderer outlines a dashed stroke of such a path the same way, without a width profile, and draws its dashes and dots in the same places as when the whole path is dashed, so the pixels are the same. A pattern too fine to draw is drawn solid, as before, and its stroke is outlined near the view too. At 1600 × 1200, the frame after one anchor moves takes 14 ms instead of 102 ms with a filled closed path of 50,000 anchors and a stroke of 6 pt dashes and 4 pt gaps (`cargo run --release -p vectorcraft-engine --example anchor_bench`, which now includes that document).