Effects: stacked geometry effects keep to an anchor and line budget (#3578)

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A chain of geometry effects makes at most 2 million anchors of a path (of a
type, symbol or image art's paths together) and about 8 million lines for the
renderer to draw at 1 px/pt, or what the path costs when that is more.
Roughen spaces its points further apart, Zig Zag makes fewer ridges a
segment, Free Distort, Twist and the warps split segments into longer pieces
(map_nonlinear_within) and Transform makes fewer copies where they would pass
it; a result drawn with too many lines is built again with fewer points, and
an effect that still doesn't fit is left out.

Three Roughens of a rectangle in a 25 KB file needed gigabytes of geometry,
and 2 million anchors of them flattened into 141 million lines (7 GB, past
vello's 2^27 lines a path); the file now opens in 0.4 s at about 450 MB.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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Brian Torres

2026-10-23 02:44:52 +07:00

committed by bflatastic

co-authored by Claude Opus 5.5

parent 1673b3b747

commit 54c8a7f2bd

9 changed files with 419 additions and 46 deletions

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