The 3D pair, and the modes every other filter was missing

[IAmJSD]

Two filters and a parity pass: 129 → 131, and the dialogs now match Photoshop's as well as the menu does.

Filter ▸ 3D

Generate Bump Map and Generate Normal Map — the two Adobe kept when they took 3D out, because texture artists kept using them. A bump map is how high each point is; a normal map is the same field differentiated and packed into RGB, so a flat surface comes out the familiar lavender, which is (0, 0, 1) written down. Both use a Sobel gradient rather than two-tap differences, or every edge that is not axis-aligned comes out stair-stepped.

The parity pass

Every filter that predates this work was opened next to its Photoshop dialog and the missing controls added:

filter	what it grew
Add Noise	Gaussian distribution alongside uniform
Lens Blur	seven iris shapes, blade curvature, rotation, specular threshold, noise
Smart Sharpen	Remove: Gaussian / Lens / Motion Blur, with an angle
Reduce Noise	colour-noise reduction, Sharpen Details, Remove JPEG Artifact
Mezzotint	its ten screens (dots, lines, strokes)
Color Halftone	four adjustable screen angles
Lens Flare	four lens types, each with its own ghost pattern
Fibers	a randomiser
Extrude	pyramids, level-vs-random depth, solid front faces
Tiles	what fills the gaps
Diffuse	darken only, lighten only, anisotropic
Wind	blast and stagger
Trace Contour	lower and upper edge
Glowing Edges	smoothness
Oil Paint	bristle detail, shine, lighting angle
Wave	several generators, triangle and square, both scales
ZigZag	around centre / out from centre / pond ripples
Spherize	horizontal-only and vertical-only
Shear, Displace	undefined-area handling
Maximum, Minimum	squareness against roundness
Offset	all three edge behaviours
Radial Blur	a real method choice, quality, and a centre
Polar Coordinates	a direction that reads as one

Some of these are more than a slider. Smart Sharpen subtracts the blur it is actually trying to undo — sharpening against a Gaussian when the softness came from motion puts halos across the direction of travel. Reduce Noise's colour stage rebuilds each channel from the pixel's own luminance plus smoothed chroma, which is why chroma can be smoothed hard without the picture going soft. Lens Blur's round iris at the standard threshold still goes through schist_fx, and therefore the GPU; a shaped one is a different kernel and runs in the filter.

Two test fixes fell out

• The GPU wiring test built its filter values from a bare list, so a filter that grew a parameter was handed a zero for it — and zero is a setting, not "unset". Lens Blur's specular threshold at zero meant it stopped taking the GPU path. It now starts from the filter's own defaults.
• The neural tests that repoint SCHIST_MODEL_DIR now hold a lock against the two that read it. The harness runs them on threads and the environment is process-wide, so the install test could move the directory out from under a model another test had already decided was installed — about one workspace run in twenty, under load.

Checked

Property tests over all 131, menu cross-check, full workspace suite green (99 binaries), clippy and rustfmt clean, every changed filter eyeballed on a photograph, and the app driven headlessly to confirm the 3D group lands at the top of the Filter menu where Photoshop puts it.

With this, the deliberate gaps are the ones a filter cannot close: no foreground and background colours, so the Sketch group draws black on white; no file picker, so Displace uses a noise field rather than a map file; no canvas widgets, so blur pins are position sliders and Flame rises from the bottom of the selection. Those are in the README.

🤖 Generated with Claude Code