A text or shape layer's effect bounds are comp-sized (as in After Effects),
but its buffer surrounds only its content, and each effect grows the buffer
itself when it needs room. CC Smear and CC Tiler never did, so a smear was
cut off where the glyphs end and tiles filled only the text's box.
CC Tiler now covers the whole layer rectangle; CC Smear grows by how far it
moves pixels (Reach x From->To), at most to the layer bounds, so footage
layers, whose buffer is their bounds already, are unchanged. CPU and GPU
alike.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QiAJeFttZp83Fh7YuzAR5f
Cause: CC Particle World projected its particles through a fixed camera
(distance 2 layer widths, looking at the layer centre) and never asked the
host for the comp camera, so moving or orbiting a camera layer left the
particles flat on the layer. It also had no Extras > Effect Camera. Separately,
the layer cache key ignored the comp camera and lights, so the effects that
read them (Card Dance / Shatter / Card Wipe Comp Camera, First Comp Light,
Caustics) kept a stale frame when the camera, a light or the layer moved.
Fix: as the Cycore manual describes, Particle World sees its particles through
the comp's active camera layer when there is one (EffectHost::comp_scene now
says whether its camera is a camera layer's, CompScene::camera_layer), through
card3d's comp-camera projection (factored out of Card Dance as comp_proj, with
Proj::view for depth, size scale and screen velocity). Otherwise it uses the
new Extras > Effect Camera: Distance (2), Rotation X / Y / Z (0) and FOV (50)
orbit the world origin; FOV moves the camera so the origin's plane keeps the
scale Distance gives it, so the defaults reproduce the old fixed camera bit for
bit (golden hashes unchanged) and old projects render as before. The Effect
Camera is left out of the simulation cache key, so animating it doesn't
restart the simulation. The plan is shared, so the GPU compositor follows too.
The layer cache folds the comp scene into the key of layers running an effect
in effects::READS_COMP_SCENE (render::comp_scene is shared with the host).
Tests: sim particle_world_follows_the_comp_camera (panning a camera layer moves
the particles, zooming spreads them, the Effect Camera is ignored then, the
default view keeps the Effect Camera, cameras facing away / zero / NaN draw
nothing) and particle_world_effect_camera (missing params = defaults, rotation,
distance and FOV change the view, extremes stay finite, the sim key ignores the
camera); render particle_world_follows_the_comp_camera (a real camera layer
panned 40 px moves the particles left, and the cached render after the move
equals an uncached one: it failed with the old cache key); gpu
particle_world_through_the_comp_camera (CPU vs GPU at 8 / 32 bpc, full and
half resolution). particle_golden / sim_golden unchanged. effects.md
regenerated; parity.md and gaps.md describe the fix.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Shape and text layers have comp-sized effect bounds centred on their
origin, but effects measured positions from the origin: a point at its
default "layer centre" sat at the comp's bottom-right corner, so Twirl
on a centred shape changed nothing and Bulge only its bottom-right
quarter. As in After Effects, effects now work in effect space,
measured from the top-left of the layer's effect bounds.
The renderer moves the layer buffer into effect space for the whole
stack (Buf::rebase, CPU and GPU alike) and hands effects everything
else in it: masks, other layers' pixels for layer parameters (each in
its own effect space, so Set Matte and displacement maps see a whole
shape layer), the layer's own frames (layer_input, also what Puppet,
Roto Brush and the Layer panel read) and the comp camera
(CompScene::rebased). Layer bounds are now right for every effect, so
pin_rect and EffectEnv::bounds_origin go and layer_rect serves edge
pinning too. Adjustment layers still run on the comp below as it is.
effect_bounds / EvalCtx::effect_to_comp replace the repeated "comp size
when there is no source" code; the viewer's effect point handles and
eyedroppers, Puppet pins, the Layer panel (paint, Roto Brush) and the
tracker's Corner Pin output use them.
Project schema 2: opening a schema 1 project moves positions held by
effects on shape and text layers by half the comp size, so set points
keep their place (point parameters with keyframes, Paint paths and
clone positions, Puppet seeds and pins, Liquify and Roto Brush
strokes). Points still at their default become the layer centre;
expression controls, adjustment layers and expressions are left as
they are (docs/architecture.md). The disk cache's render version is
bumped.
Tests: default_effect_points_sit_at_the_centre_of_a_shape_layer and
layer_parameters_see_a_whole_shape_layer (render, both fail before),
effect_points_on_a_shape_layer (GPU vs CPU),
opening_a_schema_1_project_moves_shape_layer_effect_points_into_effect_space
(engine), and the effects migration tests.
Part of #227
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Edge pinning (Turbulent Displace's default Pin All, Wave Warp's
Pinning, Bulge's Pin All Edges) holds the layer bounds still: a
comp-sized rectangle for shape and text layers. That rectangle started
at the layer's origin, but a shape layer's content surrounds its origin
(anchor 0,0), so everything left of or above the origin counted as
outside the layer and was pinned: only the bottom-right quadrant of a
centred shape moved.
The renderer now passes the bounds' top-left in layer coordinates
(EffectEnv::bounds_origin): (-w/2, -h/2) for layers without a source
rectangle, (0, 0) otherwise. util::pin_rect places the bounds there and
the three effects use it on the CPU and the GPU. Effect point
parameters keep their current layer coordinates.
Test: edge_pinning_displaces_all_of_a_centred_shape_layer,
edge_pinning_on_a_shape_layer (GPU vs CPU).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Wave Type: Polygon, Image Contours (source layer channel threshold, pre-blur, tolerance,
contour index, source centre) and Mask, rippling outward from the outline (exact signed
distance transform, util::signed_distance).
- Parameters Are Set At Birth via the new EffectHost::params_at; Render Quality; Reflection
off the layer edges; Stroke Profile.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Adds 105 effects in new modules (keying, matte, channel, blur2, color2, stylize2, noise, generate2, distort2, perspective, transition, utility) plus shared plane/morphology/guided-filter helpers in util.rs, with 96 new unit tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude