Evaluating a layer's Pathfinder or geometry effects asked each member
whether a sublayer below it held a ruler guide, then asked the members
of every selected sublayer or group the same question again on the way
down. A sublayer nested N deep was scanned once per layer or group above
it, so a chain of N sublayers cost N(N+1)/2 scans.
One read walk now looks at each member once at most and records which
members hold or lead to a sublayer's guides, and the move visits and
copies only those. As before, the groups inside a sublayer that holds no
guide are not looked into. The guides taken, their order, their hidden
and locked state, the art left behind and the sharing of untouched
members are the same as before.
Type used as a clip group's clipping path, with a geometry effect on the
object, on one of its fills or strokes, or a perspective, was baked into
its outlined pieces with the effects applied, so SVG, PDF and the other
exports clipped by all of them while the canvas clips by the plain glyph
outlines. The baked clipping path was also a group, so the type's fills
and strokes were not painted.
bake_node now bakes such a clip group as the canvas draws it: the
clipping path is a path of the region effects::clip_outline gives, the
type's fills (effects baked) paint behind the clipped art inside the
clip, and its strokes paint over it outside the clip, in a group that
keeps the clip group's id and transparency.
Three cases still clipped differently from what the clipping path draws:
- A clip group with an appearance of its own (a Drop Shadow, a geometry
effect) was measured for culling by its plain clipping path, so a view
showing only the part of the clip that an effect moved drew nothing.
The renderer now grows that measure by the clip region in this case
too.
- The geometry effects on the fills and strokes of an unpainted clipping
path applied after the effects of a group around it. They now apply
first, as for other members. A clipping path that paints keeps them
live, so its fill and stroke still draw.
- Export baked a compound clipping path with an effect of its own from
its raw paths, dropping the effects on those paths. It now bakes the
clipping path as the canvas clips by it, and the pieces it bakes into
get ids of their own.
Checking an Extrude & Bevel (both kinds) or Inflate effect built every
shape's profile about the profiles' bounds, then built the fill and
stroke solids again about the bounds of the regions they paint. A
filled shape's profile is its fill's solid, so that solid was built
twice. When a stroke reaches past the shape, the first build also used
bounds the effect does not draw it about.
The check now builds the profile on its own only where no drawn solid
is built from it: every shape for Rotate, and for Extrude & Bevel and
Inflate a shape with no fill (strokes only, or no paint). A filled
shape's solid is built once, about the bounds the effect draws it
about. The shadow check is unchanged.
Tests count the solids the check builds: an object with a fill and a
stroke, a group of two such members, an effect on the fill and the
shadow on; a shape with no fill still has its profile built.
A Fill + Offset Path below a group's Contents painted every clipped member
of a clip group among its members, so art hidden outside the clipping path
bulged the offset outline. A clip group (or clipping layer) now adds the
region its clipping path clips to.
Revolve sorted its faces by the depth of each face's middle only, so a
tilted profile with long edges, or a profile of several contours, could
draw a nearer face under a farther one where the two overlap.
- A revolved face carries its view-space plane (none when its corners lie
off one plane or reach the eye), and Revolve (Classic)'s facets keep it.
- Revolve and Revolve (Classic) put each surface's faces through the local
depth order Extrude & Bevel uses for its fill and strokes: when two
overlapping faces are drawn the wrong way round, every pair of
overlapping faces goes in the order of their depths at the middle of the
overlap, within the same 4,000,000-comparison limit. A surface already
in the right order keeps it.
- A group's members, sorted together by depth, go through the same order
across members.
Docs: docs/revolve.md, docs/effects-parity.md, docs/target-app-parity.md.
A raster effect (Drop Shadow, Outer Glow, Gaussian Blur and the other
effects that paint pixels) on a symbol instance's topmost fill now draws
on each filled shape of the symbol's art, and one on its topmost stroke
draws on each stroked shape, after any geometry effects listed before
it. The same rules as for geometry effects apply: only a visible fill or
stroke with an opacity above 0 counts, a group's own fills and strokes
in the art take the effect, and an instance inside the art passes it on.
The canvas, Use Preview Bounds and the drawn bounds, SVG and PDF export
draw it, and Object > Expand Appearance is enabled for such an instance:
a shadow or glow becomes an image under the instance, and a blur,
feather or inner glow replaces it with the image, in one undo step.
Existing documents with a raster effect on a symbol instance's fill or
stroke draw differently: before, the effect drew nothing.
A clipping path with Roughen, Transform or another effect that reshapes
a path drew its own fill and stroke reshaped, but the canvas and raster
export still clipped the art by the plain path. SVG and PDF export bake
the effect into the path before writing the clip path, so the screen
and a saved SVG showed different art.
effects::clip_outline now applies the live geometry effects in the
clipping path before taking its region: the path's or compound path's
own effects, the effects of its fills and strokes (the region is then
the union of the paths they give, as an export bakes them), the effects
of a compound path's paths, of a group's visible members and of a
nested clip group's clipping path, shown or hidden, and a group's own
effects as an export evaluates them. Raster effects such as Gaussian
Blur leave the region as it is. The renderer, the engine commands that
measure a clip region (flatten, arrowheads, cutting) and the writers use
it; the writers receive the baked document, so their output for a path
with effects does not change.
The renderer measures a clip group by the region its clipping path's
effects give it, so a view or tile that shows only the moved part of
the clip still draws the clipped art, and it drops cached clip regions
that hold a plug-in effect when plug-ins change.
Two rules change in every export as well as on the canvas:
- When the clip group, or a group around it, has a geometry effect of
its own, the clipping path's effects apply first and its gradients
move with them. #7114 left the clipping path's effects live under the
group's effect, so they applied after it.
- Type used as a clipping path keeps its own effects when a group's
effect outlines it. #2073 and #2290 outlined it without them, to
match the plain clip the canvas drew.
Expand as Wireframes reshaped the faces of a 3D effect with the geometry
effects after it, but the faces it built carried no stroke. An Outline
Stroke after the 3D effect then outlined a plain 1 pt stroke with miter
joins, while the canvas outlines the round-joined stroke each face is
drawn with: the seam stroke (half the facet's thickness, 0.05 to 0.75 pt;
0.75 pt on Revolve) or the 0.5 pt wire edge of the Classic Wireframe
surface. The wireframe's faces now carry that stroke, so the expanded
edges lie where the drawn outlines lie.
A geometry effect after an object's 3D effect, such as a Transform that
scales or rotates about the center, measures the drawn art, cast shadow
included. Expand as Wireframes measured the faces alone, so with a
shadow on, the expanded edges landed away from the surfaces on the
canvas. The faces are now reshaped together with the shadow the canvas
draws behind them (Extrude & Bevel, Inflate, Rotate and Revolve, on an
object, group or layer), and only the faces are kept.
Export 3D Object built every Extrude & Bevel (both kinds) and Inflate
solid twice: once for the facets that decide whether the art draws it and
count toward the object's face limit, and again for its mesh.
The solid builder now keeps the projected facets and the faces before
projection from one pass (`extrude_meshed`, `inflate_meshed`), and the
export decides and meshes each part from that one build. Where a mesh
built alone cuts Inflate's twisted sides differently (it has less room
left after keeping the faces turned away), the mesh's sides are cut with
its own room. Strokes past their limits are still left out, a fill's
error and the object's face limit still stop the export at the same
part, and the triangle budget is unchanged.
Tests compare the facets and meshes with separately built ones bit for
bit, and count one build per solid.
After Reset Bounding Box on a turned symbol instance, Break Link to
Symbol and Object > Expand gave the art a box turned with the instance's
transform again. The art's boxes now turn with the instance's own box,
so they stand square when the instance's box did, and the angles the
art has inside the symbol are kept relative to it. The group that an
instance's opacity, blending mode or opacity mask adds around the art
takes the instance's box angle instead of standing square to the page.
A reflected instance can hold a box 180 degrees from the box its
transform gives in one step; the art now takes the instance's box
there too, the same rectangle with its handles where the instance had
them.
Compound shapes and Pathfinder receive an instance's art through the
same rule.
The clip groups and clip paths that 9-slice guides make for gradient
and pattern art take the angle of the cell that places them, and the
outer group keeps the object's angle turned by the instance, instead
of standing square to the page. This also changes the result for an
instance that was never reset: a 20 degree sliced instance gave clip
groups at 0 degrees and now gives them at 20.
Docs: params text, docs/mcp.md, docs/target-app-parity.md.
A symbol instance colored with the Symbol Stainer lost its stain in
export whenever the canvas's stained art was not used:
- An instance with geometry effects was reshaped for export from the
symbol's art with only its dynamic changes, so SVG, PDF, EPS, .ai,
DXF, EMF/WMF and HPGL wrote the unstained colors. A color adjustment
on an instance recolored the unstained art the same way.
- PDF, EPS, legacy .ai, DXF and EMF/WMF wrote an instance without
effects from the unstained art.
tint_node, stain and instance_art now live in
vectorcraft_doc::symbol_overrides, which both the effects and the
exporters can use; vectorcraft_brush re-exports them. Baking, color
adjustments and the writers above now use instance_art: dynamic changes
first, then the stain.
A 3D effect on a fill or stroke worked on copies of the object's fills
and strokes, and the copies were looked up among the object's items by
identity, so a live-effect plug-in before that 3D effect was given
`_context.item` "object" and a deferred stage there was listed with no
item. The drawn art, the 3D meshes and Expand as Wireframes now pass the
original item, so the plug-in is given `{"fill": i}` or `{"stroke": i}`
as docs/plugins.md describes. The paints of a type's first run still have
no item.
Under a light that is not white, an opaque Inflate fill or stroke in a
solid color was drawn as one composite of all its facets, so the
object's solids were drawn whole, one after another: the stroke's faces
covered every face of the fill, nearer or not.
When an object's solids share one order (all opaque with Normal
blending, or one member's under its opacity mask), each facet of such a
solid is now drawn on its own, with the composite's paint, channel
light ramps and seam width, and takes its place in that order as the
faces of a gradient already do. A lone solid, and the solids of an
object with a translucent or blended fill or stroke, keep the one
composite.
A face drawn on its own is about 16 nodes, against about 6 per facet
in the composite of a whole surface. These faces go in one order while
they number at most 30,720 together, counted again after the cuts.
Past that, each such solid is drawn as one composite.
Docs: docs/three-d.md, docs/target-app-parity.md.
In SVG and PDF output, each piece of a warped image whose pieces can show
through was drawn through a mask of every later piece that reaches it. On a
later piece's antialiased edge the viewer multiplies the earlier piece's
coverage by the mask and draws the later piece over it, so an image with
both opaque and partly transparent pixels came out lighter at its opaque
pixels along the triangles' edges (alpha 184 of 255 in the new SVG test).
A later piece now goes into an earlier piece's mask only when a pixel of
either piece's image within 2 pixels of their overlap is less than opaque
(vectorcraft_effects::WarpSeams). Where two pieces overlap over opaque
pixels, the later one is drawn over the earlier one without a mask.
A Transform effect whose result would pass the geometry budget (2 million
anchors or 8 million lines drawn) is left out and the art stays where it
was, but the raster effects listed before it still scaled and moved with
it: before a Transform effect that scales the art 1000 times, a Drop
Shadow's offset grew 1000 times and its blur went to the 1000 pt limit
around art that had not moved, and Expand kept those values.
The geometry pass now notes each Transform effect that moves the art once
and that it leaves out, in the Carry it already returns, and
Carry::hide_skipped hides those effects in the list the raster effects
are read from. The canvas (a path's own effects and its fills' and
strokes'), its bounds, bake (SVG and PDF export), shape art, Expand,
Expand Appearance and Outline Stroke use it, and a fill's Transform
effect inside a piece no longer scales the effects before it when the
budget leaves it out. The budget itself is unchanged.
A path drawn as its own art inside a group whose geometry effects run
after its members' own read its object effects whole. The reshaping pass
now notes a Transform effect that no path in the art took past the
budget, and the member's art hides it before its raster effects are read.
The bounds skip the extra geometry pass when no raster effect could
follow a Transform effect, and painted_reach runs it once for both
measurements.
An envelope or the Warp effect cuts an image into triangle pieces that
reach a little past their edges, so neighbors overlap and no seams show.
On an image with alpha, the overlap drew that alpha twice: a 50% image
came out about 75% opaque along every cell edge and diagonal.
- The pieces now form a knockout group, and each piece is marked as a
warp piece (`warp_piece`) whose knockout shape is its whole triangle,
so where pieces overlap only the top one draws.
- The canvas knocks each piece out by its triangle at full coverage.
- SVG and PDF draw the pieces of a partly transparent image (its pixels,
opacity, color mask or colorize paint) through one mask each, of the
later triangles that reach it; pixels on a triangle's antialiased edge
come out slightly lighter there. Pieces of an opaque image are drawn
one over another as before.
- SVG writes one copy of the image for pieces cut by opacity masks
(Preserve Shape Using Transparency) too.
- A cell count past the generated-object budget makes an empty group
instead of overflowing.
Docs: docs/target-app-parity.md.
- When the faces that overlap form a cycle of depth orders, the order
broke the cycle only after drawing every face with nothing to wait
for, so a cap could be drawn before the walls and they painted over
it. A face drawn last now keeps its place: no face moves across it.
- A face with a corner at or past the eye, which the perspective
projection holds just in front of the eye, no longer gets a plane,
so its depth is not measured on a plane its drawing does not match.
- docs/three-d.md states the masked member rule in Groups as the
Fills and strokes section does, and docs/target-app-parity.md cites
the Inflate test by its name.
- Each contour of a graphic is cut only at the faces its own bounds reach,
and the points cut at the faces count toward a limit of 64,000,000.
- The paint copies of a graphic's parts count toward a budget of their own,
one copy for a part's fill and one for its seam stroke when it takes one.
- A part filled with a pattern, or whose gradient has a transparent stop or
point, takes no seam stroke.
- Under several lights an opaque solid part also covers its seams, with its
lit art clipped to a band of the seam stroke's width.
- A line of a graphic that reaches farther than any surface is refused, as a
curve already was.
- A full turn places each segment by its own middle, so the cut at the back
falls on the segment edge nearest half a turn from the middle.
- A group's members are measured for graphics only when it has some.
- docs/three-d.md: Revolve shows no Face control, and the new limits.
Extrude & Bevel, Extrude & Bevel (Classic) and Inflate sorted the fill
walls and the faces of a stroke that leaves gaps (dashed, profiled,
brushed) by one depth each, so a far stroke face could draw over a near
fill wall and the reverse. Two such strokes on one shape drew over each
other the same way, and Inflate drew a plain stroke as if it covered
the fill's edge, which an inflated fill can rise in front of.
- Each flat facet now carries its plane, so its depth can be measured
at any point under it, with orthographic and perspective views.
- Where faces of one shape's fill and strokes overlap in the wrong
order, the overlapping faces are ordered by their depths where they
overlap. A fill wall and its covering stroke keep their order.
- A face of a stroke that leaves gaps that passes through a fill wall,
a covering stroke's face or an earlier such stroke's face is cut
along the line where their depths meet, keeping its curved outline,
within the face limit and the paint allowance.
- Under Inflate, no stroke counts as covering the fill's edge.
- The faces go in one order when the fill and strokes are at full
opacity with Normal blending. A member of a 3D group with an opacity
mask or a blending mode of its own orders its faces inside it when
its own paints qualify. A gradient with transparent stops keeps the
one order with graphics on its cap, and so does Inflate in gradients
under a colored light. A solid color under a colored light, drawn as
one composite per surface, still draws each surface whole.
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