* Box blur: count repeated edge pixels instead of visiting them
The starting window of each horizontal and vertical box pass visited every
position of the radius, including any number outside the image that repeat
the edge pixel, so a radius from a project could make one pass take
arbitrarily long. The pixels inside are summed once and the repeated edge
pixels are added as a count times the edge value.
* address review: skip zero-count edge pixels in the box passes
The sampled Gaussian (sigma < 3) read every tap through a bounds-checked
get, and its vertical pass walked a column per pixel. Taps inside a row are
now one slice, and the vertical pass adds whole input rows in 128-pixel
tiles. Same f64 sums in the same order: bit-identical output (tested
against the per-pixel kernel). Each pass is 15–25% faster.
After Effects' Radial Blur keeps a layer's edges: Zoom 20 on a flat grey 960x540
solid over red (case 713) stays flat and opaque to its edge, and a zoomed
full-frame ramp (case 829) keeps the frame opaque (2/255 at x = 2, 253/255 at
x = 1917 on row 540). EffectCraft sampled transparency outside the layer, so its
edges faded and the red below showed through (713: 3.9 % of the frame off, max
64/255). Now 713 is identical to AE (max 0/255), CPU and GPU. CC Radial Blur
(already matching AE) is unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- render: LayerCache (content-keyed processed-layer cache: source -> masks ->
effects, keyed by a hash of the layer's non-transform props evaluated at the
frame time, solid item, switches, scale; time folded in for clock-driven
effects / wiggle paths). Static and transform-only layers render once;
edits only re-render the edited layer. Session + UI frame jobs share it.
- effects: TIME_DEPENDENT list + test that every clock-reading effect is listed.
- raster: affine composite fast path (per-row span clipping, unchecked interior
bilinear, integer-translation copies, inlined Normal blend), checked against
composite_warp_reference; box/Gaussian blur without transposes, two
ping-pong buffers; accumulate_warp so motion blur sums into one buffer
instead of one full-frame image per sub-sample.
- ui: viewer frame is urgent and jumps the prefetch queue; stale-revision jobs
are dropped; paused prefetch waits for the viewer frame; "Frame Render Time"
reports viewer frames only; parallel f32 -> Color32 conversion.
- cli: `frame --bench N` (per-layer/per-effect timings, wall + CPU time) and
`frame --bench-play N` (consecutive frames with/without the layer cache).
- tests: cache transparency (scrub, edits of values/keys/effects/masks/
solids/text/timing), hit/miss accounting, time-dependent effects, demo
cached == uncached, fast warp/blur/accumulate == reference.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Dylan M. Taylor
nazar-gavrylyk
vangel76andClaude Opus 5.5
aiongg
MarekSpodBiedry
Brandon ThomasandClaude Opus 5.5