A shape path gradient tested every raster pixel against every flattened
outline edge, so an outline with tens of thousands of segments cost
billions of tests and stalled rendering. The outline is now simplified
before rasterising so pixels x edges stays under 64M: points closer than
a raster pixel are dropped first, then every k-th point is kept, with
each polygon left closed and at least 8 edges.
Co-authored-by: Cursor <cursoragent@cursor.com>
A "shape" path gradient with its focus off the shape (fillToRect on a
corner of an ellipse's box) filled solid with its last colour: the
position came from the nearest crossing of the ray from the focus with
the outline, and rays from outside cross it twice or miss. The contours
are the outline scaled about the focus, which a point first reaches at
the ray's farthest crossing; that is now used. A focus rectangle (rather
than a point) is the first colour throughout, with the colour running from
its edge to the outline, as PowerPoint draws it.
Wild synthetic set: shape path gradients 18.95 -> 3.54.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Path gradients that follow a rectangle (path="rect") or the shape's own
outline (path="shape") were drawn as circles. They're now rasterised into
a small image of the bounds: rect takes the larger of the horizontal and
vertical shares of the distance from the focus to the edge (X-shaped
contours), shape the share of the way from the focus to the outline along
the same ray (an ellipse gives ellipses, a triangle triangles), as
measured on PowerPoint's export. The two path probe decks now match it to
a mean pixel difference of 1.7 and 0.6 (from 15.6 and 22).
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
