update docs workflow

update release notes
2026-07-26 13:52:55 -04:00 · 2026-07-26 13:52:55 -04:00 · 2026-07-26 13:52:55 -04:00 · 2026-07-26 13:52:55 -04:00 · 2026-07-26 13:52:55 -04:00 · 2026-07-26 13:52:55 -04:00
25 changed files with 1994 additions and 434 deletions
--- a/.github/workflows/build-docs.yml
+++ b/.github/workflows/build-docs.yml
@ -24,15 +24,14 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v4
-      - name: Setup bun
-        uses: oven-sh/setup-bun@v2
+      - name: Setup Node
+        uses: actions/setup-node@v4
        with:
-          bun-version: latest
+          node-version: '22'
      - name: Install dependencies
-        run: bun install
-      - name: Build docs 
-        run:
-          bun docs-build
+        run: npm install
+      - name: Build docs
+        run: npm run docs-build
      - name: Setup Pages
        uses: actions/configure-pages@v5
      - name: Upload artifact
@ -43,4 +42,3 @@ jobs:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4
-
--- a/docs/refs/DXF_IMPORT_REVIEW.md
+++ b/docs/refs/DXF_IMPORT_REVIEW.md
@ -1,6 +1,7 @@
 # DXF Import Implementation Review

 ## Overview
+
 Added DXF import functionality to complement the existing DXF export feature, following the same architecture as SVG import.

 ## Implementation Summary
@ -28,6 +29,7 @@ Added DXF import functionality to complement the existing DXF export feature, fo
 ### Export Format (from `src/kiri/mode/laser/init-work.js`)

 The existing `exportDXF()` function generates:
+
 ```dxf
  0
 SECTION
@ -58,12 +60,14 @@ ENDSEC
 ### Import Implementation Compatibility

 ✅ **Fully Compatible** with exported format:
+
 - Parses POLYLINE entities with VERTEX sub-entities
 - Reads group code 70 (closed flag)
 - Reads group codes 10, 20, 30 (X, Y, Z coordinates)
 - Handles SEQEND terminator

 ✅ **Additional Entity Support**:
+
 - LWPOLYLINE (modern compact format)
 - LINE (simple two-point segments)
 - CIRCLE (converted to polygon)
@ -74,23 +78,27 @@ ENDSEC
 ### Entity Parsing

 #### POLYLINE (Traditional Format)
+
 - Uses VERTEX sub-entities for each point
 - Flag 70 bit 0: closed (1) or open (0)
 - Group codes: 10=X, 20=Y, 30=Z
 - Terminated by SEQEND

 #### LWPOLYLINE (Lightweight Format)
+
 - Direct vertex coordinates (no VERTEX entities)
 - More compact than POLYLINE
 - Flag 70 bit 0: closed/open
 - **Limitation**: Bulge values (arcs) not yet supported

 #### LINE
+
 - Simple two-point entity
 - Group codes: 10,20,30 = start, 11,21,31 = end
 - Always treated as open polyline

 #### CIRCLE
+
 - Center point (10,20,30) + radius (40)
 - Converted to polygon based on segment size
 - **Default**: 1mm segments (e.g., 10mm radius circle = ~63 segments)
@ -98,6 +106,7 @@ ENDSEC
 - Calculation: `segments = max(minSegments, ceil(2πr / segmentSize))`

 #### ARC
+
 - Center (10,20,30) + radius (40)
 - Start angle (50) and end angle (51) in degrees
 - Converted to polyline based on segment size
@ -138,7 +147,7 @@ Load into scene
 ✅ **Line Ending Handling**: Normalizes \r\n, \r, \n
 ✅ **Whitespace**: Trims all lines (handles varying spacing in group codes)
 ✅ **Bounds Checking**: Prevents index out of bounds errors
-✅ **Empty Entity Skip**: Ignores entities with < 2 points
+✅ **Empty Entity Skip**: Ignores entities with fewer than 2 points
 ✅ **Default Values**: Safe defaults for missing Z coordinates
 ✅ **Error Handling**: Try/catch in parseAsync wrapper

@ -231,6 +240,7 @@ The DXF import dialog provides the following options:
 ## Comparison with SVG Import

 ### Similarities
+
 - Both use polygon-based pipeline
 - Both support nesting for holes
 - Both extrude 2D to 3D
@ -238,18 +248,19 @@ The DXF import dialog provides the following options:

 ### Differences

-| Feature | SVG Import | DXF Import |
-|---------|-----------|------------|
-| Parser | THREE.SVGLoader | Custom implementation |
-| Dependency | three.js library | None (pure JS) |
-| Arc Resolution | User-configurable | Fixed algorithm |
-| DPI Setting | Yes | No (DXF is unitless) |
-| Curve Types | Bezier, arcs, ellipses | Lines, arcs, circles |
-| Y-Axis | Inverted (SVG quirk) | Standard (CAD) |
+| Feature        | SVG Import             | DXF Import            |
+| -------------- | ---------------------- | --------------------- |
+| Parser         | THREE.SVGLoader        | Custom implementation |
+| Dependency     | three.js library       | None (pure JS)        |
+| Arc Resolution | User-configurable      | Fixed algorithm       |
+| DPI Setting    | Yes                    | No (DXF is unitless)  |
+| Curve Types    | Bezier, arcs, ellipses | Lines, arcs, circles  |
+| Y-Axis         | Inverted (SVG quirk)   | Standard (CAD)        |

 ## Code Quality

 ### Strengths
+
 ✅ Follows existing architecture patterns
 ✅ No external dependencies
 ✅ Clear, readable code with comments
@ -257,6 +268,7 @@ The DXF import dialog provides the following options:
 ✅ Consistent with SVG import style

 ### Areas for Improvement
+
 ⚠️ No comprehensive unit tests yet
 ⚠️ Could add SPLINE support for advanced CAD
 ⚠️ Could expose layer information to UI
@ -265,12 +277,14 @@ The DXF import dialog provides the following options:
 ## Security Considerations

 ✅ **Safe Parsing**:
+
 - No `eval()` or code execution
 - No file system access
 - Bounds checking prevents array overflow
 - String operations only (no binary exploits)

 ✅ **Input Validation**:
+
 - parseFloat() for numeric values (NaN-safe)
 - Trim whitespace (prevents injection)
 - Length checks before array access
@ -278,11 +292,13 @@ The DXF import dialog provides the following options:
 ## Performance

 **Expected Performance**:
- Small files (<100 entities): <10ms
- Medium files (100-1000 entities): <100ms
- Large files (1000-10000 entities): <1s
+
+- Small files (fewer than 100 entities): under 10ms
+- Medium files (100-1000 entities): under 100ms
+- Large files (1000-10000 entities): under 1s

 **Optimization Opportunities**:
+
 - Could use worker thread for large files
 - Could stream parse (currently loads entire file)
 - Could skip unknown entities faster (regex match)
--- a/docs/refs/MSLA_FORMAT_REFERENCE.md
+++ b/docs/refs/MSLA_FORMAT_REFERENCE.md
@ -32,7 +32,7 @@
 | **Other Binary Formats** |
 | AnetFile | ✓ | ✓ | n4, n7 | 3 | Yes (N4/N7) | RLE | Anet printers |
 | FDGFile | ✓ | ✓ | fdg | 2 | No | RLE | Voxelab |
-| GooFile | ✓ | ✓ | goo, prz | - | No | RLE+delim | Elegoo/Phrozen |
+| GooFile | ✓ | ✓ | goo, prz | - | No | Chunked RLE + checksum | Elegoo/Phrozen |
 | LGSFile | ✓ | ✓ | lgs, lgs30, lgs120, lgs4k | - | Yes | Struct | Longer Orange |
 | MDLPFile | ✓ | ✓ | mdlp | 1 | No | Vector | Makerbase MKS |
 | GR1File | ✓ | ✓ | gr1 | - | No | Vector | GR Workshop |
@ -210,6 +210,23 @@ Same header structure as CTB v3, with additional support for:
 - PageNumber field in layer table
 - Transition layers

+#### 1.4 CTB Encrypted v4-5
+
+**Extensions:** `.ctb`, `.encrypted.ctb`
+**Magic:** `0x12FD0107` (LE)
+**Versions:** 4, 5 (default: 5)
+**Settings block:** 288-byte slicer-settings table encrypted with AES-256-CBC, no padding, zero-padded to 16-byte blocks
+**Layer data:** CTB variable-length 7-bit grayscale RLE, then CTB layer XOR using `LayerXorKey` (`0xEFBEADDE` by default); some files additionally AES-encrypt layer-data subranges
+
+Encrypted CTB is a different container from plain CTB v3/v4/v5, not just a flag on the v3 layout. The fixed 48-byte header points at the encrypted settings block and a final encrypted SHA-256 signature. The AES key/IV are derived from UVtools-compatible Chitubox constants with the `UVtools` XOR mask. Kiri keeps these primitives native in JS in `x_ctb_crypto.js`; full writer support still needs the encrypted settings table, layer pointer table, resin parameters, previews, and final signature wired into `x_ctb`.
+
+Key tables:
+- File header: 48 bytes
+- Slicer settings: 288 bytes
+- Layer pointer: 16 bytes
+- Layer definition: 88 bytes
+- Per-layer settings flag: `0x40` allow, `0x00` disallow
+
 ### 2. Anycubic Family

 #### 2.1 Legacy Anycubic Formats (v1)
@ -559,6 +576,8 @@ Non-delta maximum repeat: 0x0FFFFFFF pixels.
 Layer record delimiter after payload: 0x0D 0x0A.
 ```

+**Tilt-vat motion:** Mars 5 Ultra and Saturn 4 Ultra GOO files are treated as tilt-vat machines. UVtools identifies them by machine name and substitutes tiny synthetic motion values before encode: lift height `0.05`, lift speed `0.05`, retract height `0`, retract speed `0.05`, with about 4 seconds of motor time in print-time estimates. Kiri models this as `sla_motion: "tilt"` on the device profile instead of overloading user peel distance/speed fields.
+
 ### CXDLP (Creality)

 **Extension:** `.cxdlp`
@ -652,6 +671,46 @@ PrinterModel = SL1
 }
 ```

+### RSLA / VSLA (Grid.Space Generic)
+
+**Extensions:** `.rsla`, `.vsla`
+**Type:** ZIP with JSON manifest
+**Layer Format:** RSLA stores raster PNG layers; VSLA stores SVG-like vector layer geometry
+
+These formats are intended as a vendor-neutral interchange and debugging target. They carry enough process metadata to preserve behavior before conversion to a proprietary printer format.
+
+**Shared manifest process fields:**
+```json
+{
+  "process": {
+    "bottomLayers": 5,
+    "transitionLayers": 8,
+    "exposure": 2.4,
+    "bottomExposure": 28,
+    "lightOffDelay": 0,
+    "bottomLightOffDelay": 0,
+    "waitBeforeCure": 0.5,
+    "bottomWaitBeforeCure": 2,
+    "waitAfterCure": 0,
+    "waitAfterLift": 0,
+    "liftHeight": 5,
+    "bottomLiftHeight": 6,
+    "liftSpeed": 180,
+    "bottomLiftSpeed": 60,
+    "retractHeight": 5,
+    "retractSpeed": 180,
+    "lightPWM": 255,
+    "bottomLightPWM": 255,
+    "motion": "normal",
+    "antiAlias": 1
+  }
+}
+```
+
+Each layer also carries a resolved per-layer `process` object with `bottom`, `transition`, `transitionIndex`, effective exposure, waits, motion, and PWM. Proprietary writers should prefer this resolved per-layer model where their format supports it, then fall back to global process fields where it does not.
+
+VSLA layer SVG roots additionally include process data attributes such as `data-exposure`, `data-light-off-delay`, `data-light-pwm`, `data-bottom`, and `data-transition` so the per-layer intent is visible without parsing the manifest.
+
 ---

 ## Implementation Guidance for Sandboxed Environments
@ -896,6 +955,7 @@ def decode_ctb_variable_rle(data: bytes, width: int, height: int) -> bytes:
 **CTB:**
 - `UVtools.Core/FileFormats/ChituboxFile.cs`: `DecodeCtbImage`, `EncodeCtbImage`, `LayerRleCryptBuffer`
 - `UVtools.Core/FileFormats/CTBEncryptedFile.cs`: encrypted CTB v4-v5 container and AES handling
+- `src/kiri/mode/sla/work/x_ctb_crypto.js`: native JS AES-256-CBC/no-padding, CTB layer XOR, encrypted CTB constants

 **Anycubic:**
 - `UVtools.Core/FileFormats/AnycubicFile.cs`: `FileMark`, `Header`, `LayerDef`, `GetAvailableVersionsForExtension`, `PrinterModel`
--- a/docs/release.md
+++ b/docs/release.md
@ -2,6 +2,399 @@

 Full docs @ https://docs.grid.space/projects/kiri-moto

+# Release 4.7.0
+
+A broad update focused on SLA/MSLA export coverage, DXF import, CAM routing and drilling fixes, and a substantial menu/theme cleanup across Kiri:Moto.
+
+## SLA / MSLA
+
+- add CTB export support with Chitubox machine profiles
+- add Goo and PRZ export support for Elegoo and Phrozen targets
+- add Photon Workshop family export support for newer Anycubic Photon machines
+- add generic raster SLA and vector SLA output formats
+- add volume rendering and make it the default SLA rendering path
+- improve SLA support generation and support geometry handling
+- add SLA raster, metadata, and process timing helpers for exposure, lift, retract, waits, PWM, and transition layers
+- add tilt-motion support for Goo/Elegoo targets
+- add memory growth and fallback handling for SLA wasm slicing
+- add and enable new Anycubic Photon, Creality, Elegoo, and Phrozen SLA printer profiles
+- add CTB conversion utility and MSLA format reference documentation
+
+## CAM
+
+- add basic finish cut capability to Area clear operations
+- improve routing between Area operation regions
+- add tool move epsilon to reduce false-positive collision detection
+- fix contour filtering errors
+- fix CPU contouring with more than one isolated body
+- fix contour Y handling that could mutate cached widget vertices
+- fix tool change dwell time
+- force tool lift between drill operations
+- fix drill marking with latent thru settings
+- fix widget and tab assignment during slicing
+- patch tab record format handling
+- remove metric/imperial scaling factor from A axis output
+
+## Import / Export
+
+- add DXF import support
+- add DXF spline support
+- reconnect DXF open lines with shared endpoints
+- normalize the DXF import dialog
+- add automatic DXF unit detection and scaling, including Z/depth scaling
+- proxy print start commands when needed
+- add Bambu SSDP model option
+
+## UI / Workflow
+
+- rebuild the Kiri:Moto menubar from JS instead of static HTML
+- restructure top menus and move mode tools into the menubar build
+- add a shared palette and theme CSS foundation
+- reorganize Kiri CSS and normalize menu colors
+- make rotate and scale panels draggable
+- make CAM setting groups collapsible
+- move device/profile controls to the left menu
+- move Save As commands into the file menu
+- replace transient alerts with a busy spinner
+- add middle-button drag support
+- add automatic slideshow behavior for narrow windows
+- improve popup positioning, z-index layering, and menu hover behavior
+- add missing language keys for new menu items
+- fix file New/Open state clearing and rebuild behavior
+
+## Mesh:Tool / Void:Form
+
+- update Mesh:Tool visuals and add document history support
+- continue Void:Form boundary provenance work
+- add Void:Form constraints and chamfer/offset planning docs
+- improve Void:Form solids, geometry store, rebuild, and toolbar internals
+
+## Platform / Build
+
+- add localhost HTTP POST proxy support for embedded HTTPS contexts such as Onshape
+- add CORS headers and secure-request handling for proxy routes
+- fix Docker build steps and update Docker Node version
+- fix esbuild mkdir race and node module external handling
+- remove Windows build from GitHub workflow
+- update Electron hide/show handling and Windows link workaround
+
+# Release 4.6.3
+
+## General
+
+- merge experimental Void:Form app code
+- add permissive graphics card flags for Linux Electron builds
+
+## CAM
+
+- fix register operation cutout modes
+
+# Release 4.6.2
+
+## CAM
+
+- add Carvera Air device support
+- add spindle spin-up delay for Carvera Air
+- reduce max spindle speed for Carvera Air
+- add trace offset Z option
+- allow drill operations to obey Z bottom
+
+## Features
+
+- add install progress bar
+- add OPFS support and API link
+- add engine workspace export
+- add layer diff support
+
+## UI / Workflow
+
+- resize engine code and preview boxes
+- fix Mesh:Tool window close behavior so it returns to Kiri:Moto
+
+## Bug Fixes
+
+- fix leave XY offset for roughing cutout
+- fix API URL object loading
+- fix engine stock origin and center handling
+- fix engine setMode()
+- fix floating-point noise in Z vertices with shadow clipping
+
+## Development
+
+- expose mesh worker log function
+- add slicePre() and slicePost() engine requirements
+- update shared-array-buffer origin trial token
+
+# Release 4.6.1
+
+## CAM
+
+- fix deep ease-down paths that wrap a polygon more than once
+- add ease-down safeguards for bad geometry
+- cap ease-down speed by engage setting
+- correct tool shadow epsilon
+- raise Z safe when Z top is above it
+- improve outline strategy for depth-first operations
+- add trace option to ignore part boundaries
+- disable trace merge until Area can handle it properly
+
+## FDM
+
+- async FDM slicing layer diffs for roughly 3x speedup
+- trim support shadow to overhangs
+- improve support clipping
+- change support gap offset from numeric to boolean
+- refactor slice progress tracking
+- tighten FDM slice shadow range
+
+## Bug Fixes
+
+- fix unit scale when visual Z is set
+- fix G-code import origin
+- fix negative level Z order
+- fix wireframe opacity
+- fix missing macro token handling
+- filter invalid area polygons
+- fix LOCAL const handling
+- remove input filter on iOS mobile
+
+## UI / Platform
+
+- invert dolly sign
+- remove beta tag
+- update Electron app base
+- fix docs formatting for controls.md
+
+# Release 4.6.0
+
+A major update focused on FDM support system improvements, belt printer support, CAM loop and selection workflows, and significant code modernization.
+
+## Major Features
+
+- redesign FDM support generation with manual support painting and erase mode
+- add angle-aware support painting with automatic overhang filtering
+- extract support structures into synthetic widgets for independent extruder assignment
+- integrate manual support painting with belt printer coordinate transforms
+- fix purge tower allocation for sparse, non-contiguous extruder configurations
+
+## FDM
+
+- add manual support painting visual overlay
+- add automatic support generation using shadow projection
+- support dedicated extruder selection for support structures
+- clip belt-mode support to the angled platform
+- fix support slice height propagation
+- improve nested top fill offset calculations
+- fix arc output center point calculations
+- add delta thickness filtering for variable layer heights
+- add Moonraker auto-start remote print option
+- fix finish speed ratio calculations for flats and bridges
+
+## CAM
+
+- add Loop operation for rotary and indexing workflows
+- add SVG trace path loading for arbitrary vector import
+- add Area operation vertical-wall clearing option
+- improve lathe step-down output for rotary operations
+- add alternating/zigzag options for Area linear surfacing
+- add shadow selection mode for Area operations
+- improve drag knife routing
+- add coastline move routes for contour operations
+- support manual slice ordering
+- improve progress reporting for shadow generation, Area surfacing, and lathe operations
+- parallelize widget shadow generation
+- add optional clip-to-stock for non-GPU topo3 contouring
+
+## UI / Workflow
+
+- add visual selection of Z top and Z bottom constraints
+- show Z top/bottom overrides in operation summaries
+- add collapsible operations list
+- add slicing and preview statistics in developer mode hover
+- persist widget transparency across sessions
+- add expandable preview in developer mode
+- add W shortcut for ghost/wire toggle
+- improve colors, opacity, and edge rendering
+- expose file type parsers as api.load
+
+## Architecture
+
+- document the FDM slicing pipeline
+- reorganize UI code into app/init and app/ui modules
+- extract keyboard, slider, and modal handling into dedicated modules
+- consolidate STL/OBJ loading into unified load classes
+- split widget into core and app-ui subclasses
+- add async initialization for startup
+- remove legacy code and unused dependencies
+- add JSDoc developer documentation
+
+## Bug Fixes
+
+- normalize mouse wheel scrolling across Chrome, Firefox, and Safari
+- fix widget cloning issues
+- fix broken API sync link
+- fix Z base layer height for parts not on bed
+- fix ghost/wire/solid toggle states
+- fix Area operation rotation handling
+- fix Loop operation expansion and rendering
+- fix shadow and lathe progress reporting
+- fix trace outside with drape duplication
+- fix starting offsets with multiple widgets
+- fix import slider max-value click
+- fix widget edge updates after mesh moves
+
+## Platform
+
+- add Snapmaker U1 belt printer profile
+- remove deprecated Gridbots devices
+- update FlashForge Adventurer 5M profile
+- update Three.js and Manifold libraries
+- add QuickJS evaluation engine for macros
+
+# Release 4.5.1
+
+## Bug Fixes
+
+- fix findConnectedSurface for pocket operations in indexed mode
+- fix use of flatness when dropping points in CPU contour processing
+- fix erroneous tab matching in CPU contouring
+- fix GPU contour Y coordinate handling with inside-only mode
+- fix trace-through backward compatibility
+- fix order-of-operations issue with tabs and inner-only processing
+
+## Improvements
+
+- increase Bambu FTP timeout for more reliable connectivity
+- update FlashForge Adventurer 5M printer profile
+- add support for exported formats in packed devices
+- reorganize help menu layout
+- expose file type parsers as api.load
+- distinguish fit contents from resize operations
+- improve visibility for hover-only UI elements
+- update Three.js and Manifold libraries
+
+# Release 4.5.0
+
+## Major Features
+
+- rewrite CNC path routing engine for improved collision detection
+- add unified Area operation combining roughing, outlining, tracing, and surfacing workflows
+- add taper ball tool support for CNC operations
+- add on-the-fly switching between orthographic and perspective cameras
+- preserve and restore camera projection settings across workspace import
+- add Shift+F zoom to contents and F zoom to fit shortcuts
+
+## CAM
+
+- add Area clear, trace, outline, and surface modes
+- add depth-first pocket routing
+- add roughing flat passes option
+- improve leave stock handling in XY and Z
+- enable inside/outside trace for open polylines
+- add trace-through option
+- improve dogbone generation
+- add wide cutout support for outlines
+- add contour grace factor and stock clip-to restoration
+- add linear surface output mode
+- merge overlapping tabs automatically
+- make tabs respect travel boundaries
+- ensure ease-down paths avoid tabs
+- improve tab cutting for indexed rotations
+- speed up tool shadow computation with grid-bucketed recursive union
+- improve travel boundary handling and outside travel safeties
+- add rotational interpolation for G-code parsing
+- improve lathe preview rendering
+- add lathe axis reset macro
+- improve drilling hole selection and circularity detection
+- add milling direction per operation
+- tighten arc tolerances for G-code output
+
+## FDM
+
+- add Solidify option to remove inner voids at slice time
+- fix support on-demand detection
+- improve bridge detection and handling
+
+## Laser
+
+- add stacking STL reconstruction option for multi-layer engraving
+
+## UI / Workflow
+
+- improve CAM render colors
+- soften edge traces in light mode
+- mute dark part outlines for better visibility
+- improve indexed path visualization
+- fix colors and layer-first shadow rendering
+- hide outline omit-through option when not applicable
+- improve settings mutex handling for legacy operation import
+- fix safe moves between operations with widget platform offsets
+- improve stock clipping for multiple models with offset centers
+- fix origin selection with offset origin
+- fix first-save behavior when moving between widgets
+
+## Bug Fixes
+
+- fix Z bottom validation and related error messages
+- warn when Z bottom is below Z through
+- fix trace tool shadow clone
+- fix clamp min/max swap
+- fix stock clear all functionality
+- fix pocket bottom for slab slicing
+- clamp single trace to Z top/bottom
+- fix Area trace early termination conflict with drape
+- filter empty slices from drape artifacts
+- fix offsetting open polygons with array offsets
+- skip raster when no paths are produced
+- fix orthographic aspect ratio and zoom behavior
+- fix ball taper rendering in indexed mode
+- fix new tool units bug
+- prevent double registration of frame listeners
+- fix async/await issue in CAM prepare
+- convert slice bounds errors to alerts
+
+## Documentation / Build
+
+- add geometry library JSDoc documentation
+- update Kiri:Moto UI documentation and interface images
+- add docs redirects and fix broken links
+- update Docusaurus to 3.9
+- improve cross-platform build workflow with cross-env
+- update raster-path dependency
+- improve Electron build process
+- improve Onshape and Bambu Lab integration behavior
+
+# Release 4.4.1
+
+## CAM
+
+- fix contour Y bounds swap
+- fix tab cuts and stock clip-to in roughing operations
+- fix outline stock clipping with offset origin
+- fix origin selection with offset origin
+- fix stock clipping for multiple models with offset centers
+- fix multi-widget safe moves between operations
+- fix thru cuts with new up/over tab paths
+
+## FDM
+
+- fix FDM support on-demand detection
+- fix asset append missing module root
+
+## Core
+
+- fix bad worker reference
+- add install pass-through for root requests
+
+## Improvements
+
+- improve smoothing and pocket developer-mode visuals
+- change Electron build context detection
+- move mods package dependencies to the main package
+- move Bambu initialization to load-done
+- remove beta tag
+- backport cross-env dependency
+
 # Release 4.4.0

 ## General
--- a/src/kiri/app/conf/defaults.js
+++ b/src/kiri/app/conf/defaults.js
@ -104,6 +104,7 @@ function device_from_code(code,mode) {
        slaFormatVersion: valueOf(set.sla_format_version, 1),
        slaMachineEditable: valueOf(set.sla_machine_editable, false),
        slaMachineName: valueOf(set.sla_machine_name, ''),
+        slaMotion: valueOf(set.sla_motion, ''),
        deviceZMax: valueOf(set.z_move_max, 0),
        gcodeTime: valueOf(set.time_factor, 1),
        maxHeight: valueOf(set.build_height || set.max_height, 150),
@ -399,11 +400,12 @@ export const conf = {
                slaFillDensity: 0,
                slaFillLine: 0.5,
                slaFirstOffset: 0,
-                slaSupportLayers: 10,
-                slaSupportDensity: 0.5,
-                slaSupportSize: 0.6,
+                slaSupportLayers: 0,
+                slaSupportDensity: 0.1,
+                slaSupportSize: 0.4,
                slaSupportPoints: 4,
-                slaSupportGap: 10,
+                slaSupportAngle: 35,
+                slaSupportGap: 0,
                slaSupportEnable: false
            }
        },
--- a/src/kiri/app/layers.js
+++ b/src/kiri/app/layers.js
@ -212,6 +212,42 @@ export class Layers {
        }
    }

+    /**
+     * Add closed polygons as filled Z volumes.
+     * By default, the polygon Z is treated as the volume center. Pass
+     * { base:true } to treat polygon Z as the bottom face instead.
+     * @param {Polygon|Array<Polygon>} polys - Closed polygon(s), with inners preserved as voids
+     * @param {object} [options] - Options: {height, z, base, outline}
+     * @returns {Layers} This instance for chaining
+     */
+    addZVolume(polys, options) {
+        const opts = options || {};
+        const height = opts.height || 1;
+        const faces = this.current.faces;
+        polys = Array.isArray(polys) ? polys.clone(true) : [ polys.clone(true) ];
+
+        for (let poly of polys) {
+            if (poly.open || poly.length < 3) {
+                continue;
+            }
+
+            let z = opts.z !== undefined ? opts.z : poly.getZ(),
+                zoff = opts.base ? z : z - height / 2,
+                volume = poly.setZ(0).extrude(height, { zadd: zoff });
+
+            faces.appendAll(volume);
+
+            if (opts.outline) {
+                this.addPolys([
+                    poly.clone(true).setZ(zoff),
+                    poly.clone(true).setZ(zoff + height)
+                ]);
+            }
+        }
+
+        return this;
+    }
+
    /**
     * Add 2D polyline paths with width (usually FDM extrusion paths).
     * Creates flat ribbons with vertex normals for lighting.
--- a/src/kiri/dev/cam/Makera.Carvera.Air.json
+++ b/src/kiri/dev/cam/Makera.Carvera.Air.json
@ -23,7 +23,7 @@
    ],
    "gcodeSpindle": [
        "M3 S{spindle}",
-        "G4 P4000"
+        "G4 P4"
    ],
    "gcodeChange": [
        "M6 T{tool} ; change tool to '{tool_name}'"
--- a/src/kiri/dev/sla/Creality.Halot.Max.json
+++ b/src/kiri/dev/sla/Creality.Halot.Max.json
@ -7,6 +7,8 @@
        "bed_height": 1,
        "max_height": 300,
        "resolution_x": 3840,
-        "resolution_y": 2160
+        "resolution_y": 2160,
+        "sla_format": "cxdlp",
+        "sla_file_ext": "cxdlp"
    }
 }
--- a/src/kiri/dev/sla/Creality.Halot.One.json
+++ b/src/kiri/dev/sla/Creality.Halot.One.json
@ -7,6 +7,8 @@
        "bed_height": 1,
        "max_height": 160,
        "resolution_x": 1620,
-        "resolution_y": 2560
+        "resolution_y": 2560,
+        "sla_format": "cxdlp",
+        "sla_file_ext": "cxdlp"
    }
 }
--- a/src/kiri/dev/sla/Creality.Halot.Sky.json
+++ b/src/kiri/dev/sla/Creality.Halot.Sky.json
@ -7,6 +7,8 @@
        "bed_height": 1,
        "max_height": 200,
        "resolution_x": 3840,
-        "resolution_y": 2400
+        "resolution_y": 2400,
+        "sla_format": "cxdlp",
+        "sla_file_ext": "cxdlp"
    }
 }
--- a/src/kiri/dev/sla/Elegoo.Mars.5.Ultra.GOO.json
+++ b/src/kiri/dev/sla/Elegoo.Mars.5.Ultra.GOO.json
@ -0,0 +1,17 @@
+{
+    "no_clone": true,
+    "cmd": {},
+    "settings": {
+        "bed_width": 153.36,
+        "bed_depth": 77.76,
+        "bed_height": 1,
+        "max_height": 165,
+        "resolution_x": 8520,
+        "resolution_y": 4320,
+        "sla_format": "goo",
+        "sla_file_ext": "goo",
+        "sla_machine_name": "Mars 5 Ultra",
+        "sla_motion": "tilt",
+        "sla_format_version": 3
+    }
+}
--- a/src/kiri/dev/sla/Elegoo.Saturn.4.Ultra.12K.GOO.json
+++ b/src/kiri/dev/sla/Elegoo.Saturn.4.Ultra.12K.GOO.json
@ -0,0 +1,17 @@
+{
+    "no_clone": true,
+    "cmd": {},
+    "settings": {
+        "bed_width": 218.88,
+        "bed_depth": 122.88,
+        "bed_height": 1,
+        "max_height": 220,
+        "resolution_x": 11520,
+        "resolution_y": 5120,
+        "sla_format": "goo",
+        "sla_file_ext": "goo",
+        "sla_machine_name": "Saturn 4 Ultra 12K",
+        "sla_motion": "tilt",
+        "sla_format_version": 3
+    }
+}
--- a/src/kiri/dev/sla/Elegoo.Saturn.4.Ultra.16K.GOO.json
+++ b/src/kiri/dev/sla/Elegoo.Saturn.4.Ultra.16K.GOO.json
@ -0,0 +1,17 @@
+{
+    "no_clone": true,
+    "cmd": {},
+    "settings": {
+        "bed_width": 211.68,
+        "bed_depth": 118.37,
+        "bed_height": 1,
+        "max_height": 220,
+        "resolution_x": 15120,
+        "resolution_y": 6230,
+        "sla_format": "goo",
+        "sla_file_ext": "goo",
+        "sla_machine_name": "Saturn 4 Ultra 16K",
+        "sla_motion": "tilt",
+        "sla_format_version": 3
+    }
+}
--- a/src/kiri/mode/cam/app/init-ui.js
+++ b/src/kiri/mode/cam/app/init-ui.js
@ -906,20 +906,22 @@ export function init() {
        clearPops();
        recreateTabs();
        for (let group of Widget.Groups.list()) {
-            let root = group[0];
-            if (root.tabs)
-            for (let tab of Object.values(root.tabs)) {
-                let geo = tab.box.geometry.clone();
-                if (geo.index) geo = geo.toNonIndexed();
-                geo.translate(tab.x, tab.y, tab.z);
-                let bbg = BufferGeometryUtils.mergeGeometries([ geo ]);
-                let sw = newWidget(null, group);
-                let fwp = group[0].track.pos;
-                sw.loadGeometry(bbg);
-                sw._move(fwp.x, fwp.y, fwp.z);
-                api.widgets.add(sw);
-                sw.track.synth = true;
-                sw.track.indexed = root.track.indexed;
+            for (let widget of group) {
+                if (widget.tabs)
+                for (let tab of Object.values(widget.tabs)) {
+                    let geo = tab.box.geometry.clone();
+                    if (geo.index) geo = geo.toNonIndexed();
+                    geo.translate(tab.x, tab.y, tab.z);
+                    let bbg = BufferGeometryUtils.mergeGeometries([ geo ]);
+                    let sw = newWidget(null, group);
+                    let fwp = widget.track.pos;
+                    sw.loadGeometry(bbg);
+                    sw._move(fwp.x, fwp.y, fwp.z);
+                    api.widgets.add(sw);
+                    sw.track.synth = true;
+                    sw.track.indexed = widget.track.indexed;
+                    sw.track.tabOwner = widget.id;
+                }
            }
        }
    });
--- a/src/kiri/mode/cam/work/slice.js
+++ b/src/kiri/mode/cam/work/slice.js
@ -35,8 +35,8 @@ export function cam_slice_pre(settings) {
 export async function cam_slice(settings, widget, onupdate, ondone) {
    if (widget.track.synth) return ondone();

-    // get tab widgets
-    let tabW = widget.group.filter(w => w != widget);
+    // get tab widgets for this specific widget
+    let tabW = widget.group.filter(w => w != widget && w.track.tabOwner === widget.id);

    // merge overlapping tabs
    for (let i=0; i<tabW.length; i++) {
--- a/src/kiri/mode/sla/app/init-menu.js
+++ b/src/kiri/mode/sla/app/init-menu.js
@ -43,11 +43,12 @@ export function menu() {
    slaFillDensity:      newInput(LANG.sa_ifdn_s, {title:LANG.sa_ifdn_l, convert:toFloat, bound:bound(0,1)}),
    slaFillLine:         newInput(LANG.sa_iflw_s, {title:LANG.sa_iflw_l, convert:toFloat, bound:bound(0,5)}),
    slaSupport:          newGroup(LANG.sa_supp_m, $('sla-support'), { modes:SLA, group:"sla-support", driven, separator }),
-    slaSupportLayers:    newInput(LANG.sa_slyr_s, {title:LANG.sa_slyr_l, convert:toInt,   bound:bound(5,100)}),
-    slaSupportGap:       newInput(LANG.sa_slgp_s, {title:LANG.sa_slgp_l, convert:toInt,   bound:bound(3,30)}),
+    slaSupportLayers:    newInput(LANG.sa_slyr_s, {title:LANG.sa_slyr_l, convert:toInt,   bound:bound(0,100)}),
+    slaSupportGap:       newInput(LANG.sa_slgp_s, {title:LANG.sa_slgp_l, convert:toInt,   bound:bound(0,30)}),
    slaSupportDensity:   newInput(LANG.sa_sldn_s, {title:LANG.sa_sldn_l, convert:toFloat, bound:bound(0.01,0.9)}),
    slaSupportSize:      newInput(LANG.sa_slsz_s, {title:LANG.sa_slsz_l, convert:toFloat, bound:bound(0.1,1)}),
    slaSupportPoints:    newInput(LANG.sa_slpt_s, {title:LANG.sa_slpt_l, convert:toInt,   bound:bound(3,10)}),
+    slaSupportAngle:     newInput(LANG.sa_slan_s, {title:LANG.sa_slan_l, convert:toFloat, bound:bound(5,45)}),
    slaSupportEnable:    newBoolean(LANG.enable, onBooleanClick, {title:LANG.sl_slen_l}),
    slaOutput:           newGroup(LANG.sa_outp_m, $('sla-output'), { modes:SLA, driven, separator, group:"sla-output" }),
    slaFirstOffset:      newInput(LANG.sa_opzo_s, {title:LANG.sa_opzo_l, convert:toFloat, bound:bound(0,1)}),
--- a/src/kiri/mode/sla/core/formats.js
+++ b/src/kiri/mode/sla/core/formats.js
@ -46,6 +46,14 @@ export const SLA_FORMATS = {
        priority: 1,
        family: 'chitubox'
    },
+    ctbe: {
+        id: 'ctbe',
+        ext: 'encrypted.ctb',
+        proprietary: true,
+        available: false,
+        priority: 1,
+        family: 'chitubox-encrypted'
+    },
    goo: {
        id: 'goo',
        ext: 'goo',
--- a/src/kiri/mode/sla/work/meta.js
+++ b/src/kiri/mode/sla/work/meta.js
@ -0,0 +1,128 @@
+/** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
+
+const DEFAULT_PWM = 255;
+const TILT_MOTION = {
+    liftHeight: 0.05,
+    liftSpeed: 0.05,
+    retractHeight: 0,
+    retractSpeed: 0.05,
+    motorTime: 4
+};
+
+export function createProcessMetadata(device, process) {
+    let transitionLayers = intValue(process.slaTransitionLayers);
+    let lightPWM = pwmValue(process.slaLightPWM);
+    let bottomLightPWM = pwmValue(process.slaBaseLightPWM, lightPWM);
+    let normalMotion = motionFor(device, process, false);
+    let bottomMotion = motionFor(device, process, true);
+
+    return {
+        bottomLayers: intValue(process.slaBaseLayers),
+        transitionLayers,
+        exposure: number(process.slaLayerOn),
+        bottomExposure: number(process.slaBaseOn),
+        lightOffDelay: number(process.slaLayerOff),
+        bottomLightOffDelay: number(process.slaBaseOff),
+        waitBeforeCure: number(process.slaWaitBeforeCure ?? process.slaLayerOff),
+        bottomWaitBeforeCure: number(process.slaBaseWaitBeforeCure ?? process.slaBaseOff),
+        waitAfterCure: number(process.slaWaitAfterCure),
+        bottomWaitAfterCure: number(process.slaBaseWaitAfterCure),
+        waitAfterLift: number(process.slaWaitAfterLift),
+        bottomWaitAfterLift: number(process.slaBaseWaitAfterLift),
+        liftHeight: normalMotion.liftHeight,
+        bottomLiftHeight: bottomMotion.liftHeight,
+        liftSpeed: normalMotion.liftSpeed,
+        bottomLiftSpeed: bottomMotion.liftSpeed,
+        retractHeight: normalMotion.retractHeight,
+        bottomRetractHeight: bottomMotion.retractHeight,
+        retractSpeed: normalMotion.retractSpeed,
+        bottomRetractSpeed: bottomMotion.retractSpeed,
+        lightPWM,
+        bottomLightPWM,
+        motion: device.slaMotion || "normal",
+        firstLayerOffset: number(process.slaFirstOffset),
+        antiAlias: intValue(process.slaAntiAlias, 1)
+    };
+}
+
+export function createLayerMetadata(device, process, index, z, area) {
+    let meta = createProcessMetadata(device, process);
+    let bottom = index < meta.bottomLayers;
+    let transitionIndex = bottom ? -1 : index - meta.bottomLayers;
+    let transition = transitionIndex >= 0 && transitionIndex < meta.transitionLayers;
+    let motion = motionFor(device, process, bottom);
+
+    return {
+        index,
+        z: round(z),
+        area: round(area),
+        bottom,
+        transition,
+        transitionIndex: transition ? transitionIndex : -1,
+        exposure: round(layerExposure(meta, bottom, transitionIndex)),
+        lightOffDelay: bottom ? meta.bottomLightOffDelay : meta.lightOffDelay,
+        waitBeforeCure: bottom ? meta.bottomWaitBeforeCure : meta.waitBeforeCure,
+        waitAfterCure: bottom ? meta.bottomWaitAfterCure : meta.waitAfterCure,
+        waitAfterLift: bottom ? meta.bottomWaitAfterLift : meta.waitAfterLift,
+        liftHeight: motion.liftHeight,
+        liftSpeed: motion.liftSpeed,
+        retractHeight: motion.retractHeight,
+        retractSpeed: motion.retractSpeed,
+        lightPWM: bottom ? meta.bottomLightPWM : meta.lightPWM
+    };
+}
+
+export function motionFor(device, process, bottom) {
+    if (device.slaMotion === "tilt") {
+        return TILT_MOTION;
+    }
+
+    let normalDrop = process.slaPeelDropRate;
+    let bottomDrop = process.slaBasePeelDropRate ?? normalDrop;
+    return {
+        liftHeight: number(bottom ? process.slaBasePeelDist : process.slaPeelDist),
+        liftSpeed: number(bottom ? process.slaBasePeelLiftRate : process.slaPeelLiftRate) * 60,
+        retractHeight: number(bottom ? process.slaBasePeelDist : process.slaPeelDist),
+        retractSpeed: number(bottom ? bottomDrop : normalDrop) * 60,
+        motorTime: 0
+    };
+}
+
+export function estimatePrintTime(device, process, layers) {
+    let meta = createProcessMetadata(device, process);
+    let seconds = 0;
+    for (let index=0; index<layers; index++) {
+        let layer = createLayerMetadata(device, process, index, 0, 0);
+        let motor = device.slaMotion === "tilt" ? TILT_MOTION.motorTime : 0;
+        seconds += layer.exposure + layer.waitBeforeCure + layer.waitAfterCure + layer.waitAfterLift + motor;
+    }
+    return Math.ceil(seconds);
+}
+
+export function round(value) {
+    return Number.parseFloat(Number(value || 0).toFixed(5));
+}
+
+function layerExposure(meta, bottom, transitionIndex) {
+    if (bottom || meta.transitionLayers <= 0 || transitionIndex < 0 || transitionIndex >= meta.transitionLayers) {
+        return bottom ? meta.bottomExposure : meta.exposure;
+    }
+
+    let step = (transitionIndex + 1) / (meta.transitionLayers + 1);
+    return meta.bottomExposure + (meta.exposure - meta.bottomExposure) * step;
+}
+
+function pwmValue(value, fallback = DEFAULT_PWM) {
+    value = intValue(value, fallback);
+    return Math.max(0, Math.min(255, value));
+}
+
+function intValue(value, fallback = 0) {
+    value = Number.parseInt(value);
+    return Number.isFinite(value) ? value : fallback;
+}
+
+function number(value) {
+    value = Number(value);
+    return Number.isFinite(value) ? value : 0;
+}
--- a/src/kiri/mode/sla/work/slice.js
+++ b/src/kiri/mode/sla/work/slice.js
--- a/src/kiri/mode/sla/work/x_ctb.js
+++ b/src/kiri/mode/sla/work/x_ctb.js
@ -3,6 +3,7 @@
 import { JSZip } from '../../../../ext/jszip-esm.js';
 import { PNG } from '../../../../ext/pngjs.esm.js';
 import { imageToRowMajor, renderRasterLayers, round } from './raster.js';
+import { ctbLayerCrypt } from './x_ctb_crypto.js';

 const CTB_V3_MAGIC = 0x12fd0086;
 const HEADER_SIZE = 0x70;
@ -715,37 +716,11 @@ function requireBytes(input, offset, length) {
 }

 function decipher(seed, layerIndex, input) {
-    if (!seed) return input.slice();
-
-    let output = new Uint8Array(input.length);
-    let keyring = newKeyring(seed, layerIndex);
-    for (let i=0; i<input.length; i++) {
-        output[i] = input[i] ^ keyring.next();
-    }
-    return output;
+    return ctbLayerCrypt(seed, layerIndex, input);
 }

 function encipher(seed, layerIndex, input) {
-    return decipher(seed, layerIndex, input);
-}
-
-function newKeyring(seed, layerIndex) {
-    let init = (Math.imul(seed >>> 0, 0x2d83cdac) + 0xd8a83423) >>> 0;
-    let keySeed = (Math.imul(layerIndex >>> 0, 0x1e1530cd) + 0xec3d47cd) >>> 0;
-    let key = Math.imul(keySeed, init) >>> 0;
-    let index = 0;
-
-    return {
-        next() {
-            let byte = (key >>> (8 * index)) & 0xff;
-            index++;
-            if ((index & 3) === 0) {
-                key = (key + init) >>> 0;
-                index = 0;
-            }
-            return byte;
-        }
-    };
+    return ctbLayerCrypt(seed, layerIndex, input);
 }

 function imageToPNG(image, width, height) {
--- a/src/kiri/mode/sla/work/x_ctb_crypto.js
+++ b/src/kiri/mode/sla/work/x_ctb_crypto.js
@ -0,0 +1,321 @@
+/** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
+
+const UVTOOLS_KEY = "UVtools";
+const SECRET_KEY = "hQ36XB6yTk+zO02ysyiowt8yC1buK+nbLWyfY40EXoU=";
+const SECRET_IV = "Wld+ampndVJecmVjYH5cWQ==";
+const BLOCK_SIZE = 16;
+const SBOX = new Uint8Array(256);
+const INV_SBOX = new Uint8Array(256);
+const RCON = new Uint8Array(15);
+
+initTables();
+
+export const CTB_ENCRYPTED_MAGIC = 0x12fd0107;
+export const CTB_ENCRYPTED_VERSION = 5;
+export const CTB_LAYER_XOR_KEY = 0xefbeadde;
+export const CTB_ENCRYPTED_HEADER_SIZE = 48;
+export const CTB_ENCRYPTED_SETTINGS_SIZE = 288;
+export const CTB_ENCRYPTED_LAYER_POINTER_SIZE = 16;
+export const CTB_ENCRYPTED_LAYER_DEF_SIZE = 88;
+export const CTB_ENCRYPTED_MIN_RLE_AES_LENGTH = 512;
+export const CTB_PER_LAYER_SETTINGS_ALLOW = 0x40;
+export const CTB_PER_LAYER_SETTINGS_DISALLOW = 0x00;
+
+export const CTB_ENCRYPTED_KEY = xorCipher(base64Bytes(SECRET_KEY), UVTOOLS_KEY);
+export const CTB_ENCRYPTED_IV = xorCipher(base64Bytes(SECRET_IV), UVTOOLS_KEY);
+
+export function ctbLayerCrypt(seed, layerIndex, input) {
+    let output = new Uint8Array(input);
+    ctbLayerCryptInPlace(seed, layerIndex, output);
+    return output;
+}
+
+export function ctbLayerCryptInPlace(seed, layerIndex, input) {
+    if (!seed) return input;
+
+    let init = (Math.imul(seed >>> 0, 0x2d83cdac) + 0xd8a83423) >>> 0;
+    let keySeed = (Math.imul(layerIndex >>> 0, 0x1e1530cd) + 0xec3d47cd) >>> 0;
+    let key = Math.imul(keySeed, init) >>> 0;
+    let index = 0;
+
+    for (let i=0; i<input.length; i++) {
+        input[i] ^= (key >>> (8 * index)) & 0xff;
+        index++;
+        if ((index & 3) === 0) {
+            key = (key + init) >>> 0;
+            index = 0;
+        }
+    }
+
+    return input;
+}
+
+export function ctbEncrypt(data) {
+    return aesCbcCrypt(data, true, CTB_ENCRYPTED_KEY, CTB_ENCRYPTED_IV);
+}
+
+export function ctbDecrypt(data) {
+    return aesCbcCrypt(data, false, CTB_ENCRYPTED_KEY, CTB_ENCRYPTED_IV);
+}
+
+export async function ctbSignature(checksumValue = 0xcafebabe) {
+    let bytes = new Uint8Array(8);
+    let view = new DataView(bytes.buffer);
+    view.setUint32(0, checksumValue >>> 0, true);
+    view.setUint32(4, Math.floor(checksumValue / 0x100000000), true);
+    return ctbEncrypt(await sha256(bytes));
+}
+
+function aesCbcCrypt(data, encrypt, key, iv) {
+    if (key.length !== 32) {
+        throw new Error(`CTB AES key must be 32 bytes (${key.length})`);
+    }
+    if (iv.length !== BLOCK_SIZE) {
+        throw new Error(`CTB AES IV must be 16 bytes (${iv.length})`);
+    }
+
+    let keys = expandKey(key);
+    let input = encrypt ? zeroPad(data) : toBytes(data);
+    if (input.length % BLOCK_SIZE !== 0) {
+        throw new Error(`CTB AES input must align to 16 bytes (${input.length})`);
+    }
+
+    let output = new Uint8Array(input.length);
+    let previous = new Uint8Array(iv);
+
+    for (let offset=0; offset<input.length; offset += BLOCK_SIZE) {
+        let block = input.slice(offset, offset + BLOCK_SIZE);
+
+        if (encrypt) {
+            xorBlock(block, previous);
+            block = encryptBlock(block, keys);
+            previous = block;
+            output.set(block, offset);
+            continue;
+        }
+
+        let current = block;
+        block = decryptBlock(block, keys);
+        xorBlock(block, previous);
+        previous = current;
+        output.set(block, offset);
+    }
+
+    return output;
+}
+
+function encryptBlock(block, keys) {
+    let state = new Uint8Array(block);
+    let rounds = keys.rounds;
+
+    addRoundKey(state, keys.bytes, 0);
+    for (let round=1; round<rounds; round++) {
+        subBytes(state);
+        shiftRows(state);
+        mixColumns(state);
+        addRoundKey(state, keys.bytes, round);
+    }
+    subBytes(state);
+    shiftRows(state);
+    addRoundKey(state, keys.bytes, rounds);
+
+    return state;
+}
+
+function decryptBlock(block, keys) {
+    let state = new Uint8Array(block);
+    let rounds = keys.rounds;
+
+    addRoundKey(state, keys.bytes, rounds);
+    for (let round=rounds - 1; round>0; round--) {
+        invShiftRows(state);
+        invSubBytes(state);
+        addRoundKey(state, keys.bytes, round);
+        invMixColumns(state);
+    }
+    invShiftRows(state);
+    invSubBytes(state);
+    addRoundKey(state, keys.bytes, 0);
+
+    return state;
+}
+
+function expandKey(key) {
+    let nk = 8;
+    let nb = 4;
+    let rounds = 14;
+    let bytes = new Uint8Array(nb * (rounds + 1) * 4);
+    bytes.set(key);
+
+    let temp = new Uint8Array(4);
+    let words = nb * (rounds + 1);
+    for (let word=nk; word<words; word++) {
+        let prev = (word - 1) * 4;
+        temp[0] = bytes[prev];
+        temp[1] = bytes[prev + 1];
+        temp[2] = bytes[prev + 2];
+        temp[3] = bytes[prev + 3];
+
+        if (word % nk === 0) {
+            let first = temp[0];
+            temp[0] = SBOX[temp[1]] ^ RCON[word / nk];
+            temp[1] = SBOX[temp[2]];
+            temp[2] = SBOX[temp[3]];
+            temp[3] = SBOX[first];
+        } else if (word % nk === 4) {
+            temp[0] = SBOX[temp[0]];
+            temp[1] = SBOX[temp[1]];
+            temp[2] = SBOX[temp[2]];
+            temp[3] = SBOX[temp[3]];
+        }
+
+        let prior = (word - nk) * 4;
+        let out = word * 4;
+        bytes[out] = bytes[prior] ^ temp[0];
+        bytes[out + 1] = bytes[prior + 1] ^ temp[1];
+        bytes[out + 2] = bytes[prior + 2] ^ temp[2];
+        bytes[out + 3] = bytes[prior + 3] ^ temp[3];
+    }
+
+    return { bytes, rounds };
+}
+
+function addRoundKey(state, keys, round) {
+    let offset = round * BLOCK_SIZE;
+    for (let i=0; i<BLOCK_SIZE; i++) {
+        state[i] ^= keys[offset + i];
+    }
+}
+
+function subBytes(state) {
+    for (let i=0; i<BLOCK_SIZE; i++) state[i] = SBOX[state[i]];
+}
+
+function invSubBytes(state) {
+    for (let i=0; i<BLOCK_SIZE; i++) state[i] = INV_SBOX[state[i]];
+}
+
+function shiftRows(state) {
+    let t = state.slice();
+    state[1] = t[5]; state[5] = t[9]; state[9] = t[13]; state[13] = t[1];
+    state[2] = t[10]; state[6] = t[14]; state[10] = t[2]; state[14] = t[6];
+    state[3] = t[15]; state[7] = t[3]; state[11] = t[7]; state[15] = t[11];
+}
+
+function invShiftRows(state) {
+    let t = state.slice();
+    state[1] = t[13]; state[5] = t[1]; state[9] = t[5]; state[13] = t[9];
+    state[2] = t[10]; state[6] = t[14]; state[10] = t[2]; state[14] = t[6];
+    state[3] = t[7]; state[7] = t[11]; state[11] = t[15]; state[15] = t[3];
+}
+
+function mixColumns(state) {
+    for (let c=0; c<BLOCK_SIZE; c += 4) {
+        let a0 = state[c];
+        let a1 = state[c + 1];
+        let a2 = state[c + 2];
+        let a3 = state[c + 3];
+        let t = a0 ^ a1 ^ a2 ^ a3;
+        let u = a0;
+        state[c] ^= t ^ xtime(a0 ^ a1);
+        state[c + 1] ^= t ^ xtime(a1 ^ a2);
+        state[c + 2] ^= t ^ xtime(a2 ^ a3);
+        state[c + 3] ^= t ^ xtime(a3 ^ u);
+    }
+}
+
+function invMixColumns(state) {
+    for (let c=0; c<BLOCK_SIZE; c += 4) {
+        let a0 = state[c];
+        let a1 = state[c + 1];
+        let a2 = state[c + 2];
+        let a3 = state[c + 3];
+        state[c] = mul(a0, 14) ^ mul(a1, 11) ^ mul(a2, 13) ^ mul(a3, 9);
+        state[c + 1] = mul(a0, 9) ^ mul(a1, 14) ^ mul(a2, 11) ^ mul(a3, 13);
+        state[c + 2] = mul(a0, 13) ^ mul(a1, 9) ^ mul(a2, 14) ^ mul(a3, 11);
+        state[c + 3] = mul(a0, 11) ^ mul(a1, 13) ^ mul(a2, 9) ^ mul(a3, 14);
+    }
+}
+
+function initTables() {
+    RCON[1] = 1;
+    for (let i=2; i<RCON.length; i++) RCON[i] = xtime(RCON[i - 1]);
+
+    for (let i=0; i<256; i++) {
+        let inv = i ? gfPow(i, 254) : 0;
+        let s = inv ^ rot(inv, 1) ^ rot(inv, 2) ^ rot(inv, 3) ^ rot(inv, 4) ^ 0x63;
+        SBOX[i] = s & 0xff;
+        INV_SBOX[SBOX[i]] = i;
+    }
+}
+
+function xtime(value) {
+    return ((value << 1) ^ ((value & 0x80) ? 0x1b : 0)) & 0xff;
+}
+
+function mul(a, b) {
+    let out = 0;
+    while (b) {
+        if (b & 1) out ^= a;
+        a = xtime(a);
+        b >>= 1;
+    }
+    return out;
+}
+
+function gfPow(value, power) {
+    let out = 1;
+    while (power) {
+        if (power & 1) out = mul(out, value);
+        value = mul(value, value);
+        power >>= 1;
+    }
+    return out;
+}
+
+function rot(value, shift) {
+    return ((value << shift) | (value >> (8 - shift))) & 0xff;
+}
+
+function zeroPad(data) {
+    data = toBytes(data);
+    let length = Math.ceil(data.length / BLOCK_SIZE) * BLOCK_SIZE;
+    if (length === data.length) return data;
+
+    let output = new Uint8Array(length);
+    output.set(data);
+    return output;
+}
+
+function xorBlock(block, key) {
+    for (let i=0; i<BLOCK_SIZE; i++) block[i] ^= key[i];
+}
+
+function xorCipher(bytes, key) {
+    let output = new Uint8Array(bytes.length);
+    for (let i=0; i<bytes.length; i++) {
+        output[i] = bytes[i] ^ key.charCodeAt(i % key.length);
+    }
+    return output;
+}
+
+function base64Bytes(text) {
+    let binary = atob(text);
+    let bytes = new Uint8Array(binary.length);
+    for (let i=0; i<binary.length; i++) {
+        bytes[i] = binary.charCodeAt(i);
+    }
+    return bytes;
+}
+
+function toBytes(data) {
+    return data instanceof Uint8Array ? data : new Uint8Array(data);
+}
+
+async function sha256(bytes) {
+    let subtle = globalThis.crypto && globalThis.crypto.subtle;
+    if (!subtle) {
+        throw new Error("CTB encrypted signature requires crypto.subtle SHA-256");
+    }
+    return new Uint8Array(await subtle.digest("SHA-256", bytes));
+}
--- a/src/kiri/mode/sla/work/x_goo.js
+++ b/src/kiri/mode/sla/work/x_goo.js
@ -1,6 +1,7 @@
 /** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */

 import { imageToRowMajor, renderRasterLayers, round } from './raster.js';
+import { createLayerMetadata, createProcessMetadata, estimatePrintTime, motionFor } from './meta.js';

 const FAMILY = "GOO";
 const FILE_VERSION = "V3.0";
@ -39,9 +40,10 @@ function encodeGOO(print, progress, photon, rec) {
    let previewLarge = createPreview(290, 290);

    let { ctx, volume } = renderRasterLayers(print, photon, params => {
-        let { index, rendered, bottom, z, ctx } = params;
-        let { process, width, height } = ctx;
-        let raster = imageToRowMajor(rendered.image, width, height, value => value ? 255 : 0);
+        let { index, rendered, z, ctx } = params;
+        let { device, process, width, height } = ctx;
+        let layerMeta = createLayerMetadata(device, process, index, z, rendered.area);
+        let raster = imageToRowMajor(rendered.image, width, height, normalizePixel);

        accumulatePreview(previewSmall, rendered.image, width, height);
        accumulatePreview(previewLarge, rendered.image, width, height);
@ -49,22 +51,22 @@ function encodeGOO(print, progress, photon, rec) {
        layers.push({
            index,
            data: encodeRLE(raster),
-            z: round(z),
+            z: layerMeta.z,
            pausePositionZ: ctx.device.maxHeight || ctx.device.bedHeight || 0,
-            exposure: bottom ? process.slaBaseOn : process.slaLayerOn,
-            lightOffDelay: 0,
-            waitTimeAfterCure: 0,
-            waitTimeAfterLift: 0,
-            waitTimeBeforeCure: bottom ? process.slaBaseOff : process.slaLayerOff,
-            liftHeight: bottom ? process.slaBasePeelDist : process.slaPeelDist,
-            liftSpeed: (bottom ? process.slaBasePeelLiftRate : process.slaPeelLiftRate) * 60,
+            exposure: layerMeta.exposure,
+            lightOffDelay: layerMeta.lightOffDelay,
+            waitTimeAfterCure: layerMeta.waitAfterCure,
+            waitTimeAfterLift: layerMeta.waitAfterLift,
+            waitTimeBeforeCure: layerMeta.waitBeforeCure,
+            liftHeight: layerMeta.liftHeight,
+            liftSpeed: layerMeta.liftSpeed,
            liftHeight2: 0,
            liftSpeed2: 0,
-            retractHeight: bottom ? process.slaBasePeelDist : process.slaPeelDist,
-            retractSpeed: (bottom ? process.slaBasePeelDropRate : process.slaPeelDropRate) * 60,
+            retractHeight: layerMeta.retractHeight,
+            retractSpeed: layerMeta.retractSpeed,
            retractHeight2: 0,
            retractSpeed2: 0,
-            lightPWM: 255
+            lightPWM: layerMeta.lightPWM
        });
    }, progress ? (value) => progress(value * 0.85, `${rec.ext}_encode`) : null);

@ -99,8 +101,9 @@ function writeGOO(params) {
 function writeHeader(writer, params) {
    let { ctx, layers, volume, previewSmall, previewLarge, rec } = params;
    let { device, process, width, height } = ctx;
-    let bottomOff = process.slaBaseOff || 0;
-    let layerOff = process.slaLayerOff || 0;
+    let meta = createProcessMetadata(device, process);
+    let bottomMotion = motionFor(device, process, true);
+    let layerMotionValue = motionFor(device, process, false);

    writer.writeString(FILE_VERSION, 4);
    writer.writeBytes(FILE_MAGIC);
@ -126,30 +129,30 @@ function writeHeader(writer, params) {
    writer.writeF32(device.bedDepth);
    writer.writeF32(device.maxHeight || device.bedHeight || 0);
    writer.writeF32(process.slaSlice);
-    writer.writeF32(process.slaLayerOn);
+    writer.writeF32(meta.exposure);
    writer.writeU8(1);
    writer.writeF32(0);
    writer.writeF32(0);
    writer.writeF32(0);
-    writer.writeF32(bottomOff);
+    writer.writeF32(meta.bottomWaitBeforeCure);
    writer.writeF32(0);
    writer.writeF32(0);
-    writer.writeF32(layerOff);
-    writer.writeF32(process.slaBaseOn);
-    writer.writeU32(process.slaBaseLayers || 0);
-    writer.writeF32(process.slaBasePeelDist);
-    writer.writeF32(process.slaBasePeelLiftRate * 60);
-    writer.writeF32(process.slaPeelDist);
-    writer.writeF32(process.slaPeelLiftRate * 60);
-    writer.writeF32(process.slaBasePeelDist);
-    writer.writeF32(process.slaBasePeelDropRate * 60);
-    writer.writeF32(process.slaPeelDist);
-    writer.writeF32(process.slaPeelDropRate * 60);
+    writer.writeF32(meta.waitBeforeCure);
+    writer.writeF32(meta.bottomExposure);
+    writer.writeU32(meta.bottomLayers);
+    writer.writeF32(bottomMotion.liftHeight);
+    writer.writeF32(bottomMotion.liftSpeed);
+    writer.writeF32(layerMotionValue.liftHeight);
+    writer.writeF32(layerMotionValue.liftSpeed);
+    writer.writeF32(bottomMotion.retractHeight);
+    writer.writeF32(bottomMotion.retractSpeed);
+    writer.writeF32(layerMotionValue.retractHeight);
+    writer.writeF32(layerMotionValue.retractSpeed);
    for (let i=0; i<8; i++) writer.writeF32(0);
-    writer.writeU16(255);
-    writer.writeU16(255);
+    writer.writeU16(meta.bottomLightPWM);
+    writer.writeU16(meta.lightPWM);
    writer.writeU8(0);
-    writer.writeU32(estimatePrintTime(process, layers.length));
+    writer.writeU32(estimatePrintTime(device, process, layers.length));
    writer.writeF32(round(volume));
    writer.writeF32(0);
    writer.writeF32(0);
@ -307,6 +310,7 @@ function decodeLayer(view, layer, pixelCount) {

 function encodeRLE(input) {
    let output = [LAYER_MAGIC];
+    let previous = 0;
    let current = input[0] || 0;
    let run = 0;

@ -315,20 +319,38 @@ function encodeRLE(input) {
        if (value === current && run < MAX_RUN) {
            run++;
        } else {
-            writeRun(output, current, run);
+            writeRun(output, current, previous, run);
+            previous = current;
            current = value;
            run = 1;
        }
    }
-    writeRun(output, current, run);
+    writeRun(output, current, previous, run);
    output.push(checksum(output));

    return Uint8Array.from(output);
 }

-function writeRun(output, color, run) {
+function writeRun(output, color, previous, run) {
    while (run > 0) {
        let stride = Math.min(run, MAX_RUN);
+        let diff = Math.abs(color - previous);
+        if (color > 0 && color < 255 && diff <= 0x0f && stride <= 0xff) {
+            let first = 0x80 | (diff & 0x0f);
+            if (stride > 1) {
+                first |= 0x10;
+            }
+            if (color < previous) {
+                first |= 0x20;
+            }
+            output.push(first);
+            if (stride > 1) {
+                output.push(stride);
+            }
+            run -= stride;
+            continue;
+        }
+
        let lengthCode = stride <= 0x0f ? 0
            : stride <= 0x0fff ? 1
            : stride <= 0x0fffff ? 2
@ -350,6 +372,17 @@ function writeRun(output, color, run) {
    }
 }

+function normalizePixel(value) {
+    value = value || 0;
+    if (value === 0 || value === 255) {
+        return value;
+    }
+
+    // The JS fallback rasterizer paints red at 200, so rescale that range to
+    // retain binary cure strength while preserving antialiased edge values.
+    return Math.min(255, Math.round(value * 255 / 200));
+}
+
 function decodeRLE(input, pixelCount) {
    let rle = input instanceof Uint8Array ? input : new Uint8Array(input);
    if (rle[0] !== LAYER_MAGIC) {
@ -452,19 +485,6 @@ function accumulatePreview(preview, image, width, height) {
    }
 }

-function estimatePrintTime(process, layers) {
-    let bottom = Math.min(process.slaBaseLayers || 0, layers);
-    let normal = Math.max(0, layers - bottom);
-    let bottomTime = number(process.slaBaseOn) + number(process.slaBaseOff);
-    let normalTime = number(process.slaLayerOn) + number(process.slaLayerOff);
-    return Math.ceil(bottom * bottomTime + normal * normalTime);
-}
-
-function number(value) {
-    value = Number(value);
-    return Number.isFinite(value) ? value : 0;
-}
-
 function checksum(bytes) {
    let sum = 0;
    for (let i=1; i<bytes.length; i++) {
--- a/src/kiri/mode/sla/work/x_rsla.js
+++ b/src/kiri/mode/sla/work/x_rsla.js
@ -4,6 +4,7 @@ import { JSZip } from '../../../../ext/jszip-esm.js';
 import { PNG } from '../../../../ext/pngjs.esm.js';
 import { photon } from './x_photon.js';
 import { imageToRowMajor, renderRasterLayers, round } from './raster.js';
+import { createLayerMetadata, createProcessMetadata } from './meta.js';

 const FORMAT = "rsla";
 const MIME = "application/vnd.gridspace.rsla+zip";
@ -14,14 +15,17 @@ function encode(print, progress) {

    let { ctx, volume } = renderRasterLayers(print, photon, params => {
        let { index, rendered, ctx } = params;
-        let { process, width, height } = ctx;
+        let { device, process, width, height } = ctx;
+        let z = process.slaFirstOffset + process.slaSlice * index;
+        let layerMeta = createLayerMetadata(device, process, index, z, rendered.area);

        let file = `layers/${index.toString().padStart(6, "0")}.png`;
        let layer = {
            index,
-            z: round(process.slaFirstOffset + process.slaSlice * index),
-            area: round(rendered.area),
-            file
+            z: layerMeta.z,
+            area: layerMeta.area,
+            file,
+            process: layerMeta
        };

        layers.push(layer);
@ -79,18 +83,7 @@ function createManifest(params) {
            black: "off"
        },
        process: {
-            bottomLayers: process.slaBaseLayers,
-            exposure: process.slaLayerOn,
-            bottomExposure: process.slaBaseOn,
-            lightOffDelay: process.slaLayerOff,
-            bottomLightOffDelay: process.slaBaseOff,
-            liftHeight: process.slaPeelDist,
-            bottomLiftHeight: process.slaBasePeelDist,
-            liftSpeed: process.slaPeelLiftRate * 60,
-            bottomLiftSpeed: process.slaBasePeelLiftRate * 60,
-            retractSpeed: process.slaPeelDropRate * 60,
-            firstLayerOffset: process.slaFirstOffset,
-            antiAlias: process.slaAntiAlias
+            ...createProcessMetadata(device, process)
        },
        layers
    };
--- a/src/kiri/mode/sla/work/x_vsla.js
+++ b/src/kiri/mode/sla/work/x_vsla.js
@ -1,6 +1,7 @@
 /** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */

 import { JSZip } from '../../../../ext/jszip-esm.js';
+import { createLayerMetadata, createProcessMetadata, round } from './meta.js';

 const FORMAT = "vsla";
 const MIME = "application/vnd.gridspace.vsla+zip";
@ -18,7 +19,7 @@ function encode(print, progress) {
    let layers = [];
    let volume = 0;
    for (let index=0; index<layermax; index++) {
-        let layer = collectLayer({ index, widgets, process });
+        let layer = collectLayer({ index, widgets, device, process });
        volume += layer.area * process.slaSlice;
        layers.push(layer);
        if (progress) progress((index / layermax) * 0.7, "vector_gen");
@ -49,7 +50,7 @@ function encode(print, progress) {
 }

 function collectLayer(params) {
-    let { index, widgets, process } = params;
+    let { index, widgets, device, process } = params;
    let polygons = [];
    let area = 0;
    let z = process.slaFirstOffset + process.slaSlice * index;
@ -74,11 +75,14 @@ function collectLayer(params) {
        }
    });

+    let layerMeta = createLayerMetadata(device, process, index, z, area);
+
    return {
        index,
-        z: round(z),
-        area: round(area),
+        z: layerMeta.z,
+        area: layerMeta.area,
        file: `layers/${index.toString().padStart(6, "0")}.svg`,
+        process: layerMeta,
        polygons
    };
 }
@ -91,7 +95,8 @@ function createManifest(params) {
            z: layer.z,
            area: layer.area,
            file: layer.file,
-            empty: layer.polygons.length === 0
+            empty: layer.polygons.length === 0,
+            process: layer.process
        };
    });

@ -125,18 +130,7 @@ function createManifest(params) {
        layerCount: layers.length,
        volume: round(volume),
        process: {
-            bottomLayers: process.slaBaseLayers,
-            exposure: process.slaLayerOn,
-            bottomExposure: process.slaBaseOn,
-            lightOffDelay: process.slaLayerOff,
-            bottomLightOffDelay: process.slaBaseOff,
-            liftHeight: process.slaPeelDist,
-            bottomLiftHeight: process.slaBasePeelDist,
-            liftSpeed: process.slaPeelLiftRate * 60,
-            bottomLiftSpeed: process.slaBasePeelLiftRate * 60,
-            retractSpeed: process.slaPeelDropRate * 60,
-            firstLayerOffset: process.slaFirstOffset,
-            antiAlias: process.slaAntiAlias
+            ...createProcessMetadata(device, process)
        },
        layers: layerList
    };
@ -150,9 +144,10 @@ function createLayerSVG(params) {
        return `  <path fill="#000" fill-rule="evenodd" d="${polyToPath(poly, device)}"/>`;
    }).join("\n");

+    let proc = layer.process;
    return [
        `<?xml version="1.0" encoding="UTF-8"?>`,
-        `<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="${width}mm" height="${depth}mm" viewBox="0 0 ${width} ${depth}" data-layer="${layer.index}" data-z="${layer.z}">`,
+        `<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="${width}mm" height="${depth}mm" viewBox="0 0 ${width} ${depth}" data-layer="${layer.index}" data-z="${layer.z}" data-exposure="${proc.exposure}" data-light-off-delay="${proc.lightOffDelay}" data-light-pwm="${proc.lightPWM}" data-bottom="${proc.bottom}" data-transition="${proc.transition}">`,
        body,
        `</svg>`,
        ``
@ -184,10 +179,6 @@ function appendPath(parts, poly, device) {
    parts.push("Z");
 }

-function round(value) {
-    return Number.parseFloat(Number(value || 0).toFixed(5));
-}
-
 export const VSLA = {
    encode
 };
--- a/web/kiri/lang/en.js
+++ b/web/kiri/lang/en.js
@ -1007,8 +1007,8 @@ self.lang['en-us'] = {
    sa_iflw_l:      ["hatch line width","in millimeters"],

    sa_supp_m:      "support",
-    sa_slyr_s:      "base layers",
-    sa_slyr_l:      ["base support layers","value range 0-10"],
+    sa_slyr_s:      "raft layers",
+    sa_slyr_l:      ["support raft layers","0 disables raft","value range 0-100"],
    sa_slgp_s:      "gap layers",
    sa_slgp_l:      ["number of layers between","raft and bottom of object"],
    sa_sldn_s:      "density",
@ -1017,6 +1017,8 @@ self.lang['en-us'] = {
    sa_slsz_l:      ["max size of a","support pillar","in millimeters"],
    sa_slpt_s:      "points",
    sa_slpt_l:      ["number of points in","each support pillar","in millimeters"],
+    sa_slan_s:      "angle",
+    sa_slan_l:      ["max branch angle","from vertical","5-45 degrees"],
    sl_slen_l:      "enable supports",

    sa_outp_m:      "output",
Author	SHA1	Message	Date
Stewart Allen	d138275bbe	update docs workflow	2026-07-26 13:52:55 -04:00
Stewart Allen	5f1f77add9	update docs workflow	2026-07-26 13:52:55 -04:00
Stewart Allen	ed1009fd15	update release notes	2026-07-26 13:52:55 -04:00
Stewart Allen	ff29a8c221	fix tool change dwell time	2026-07-26 13:52:55 -04:00
Stewart Allen	3be111af43	add volume rendering and use that for sla by default now	2026-07-26 13:52:55 -04:00
Stewart Allen	41629b2c76	improve sla supports	2026-07-26 13:52:55 -04:00
Stewart Allen	a0c9428d6c	change sla supports	2026-07-26 13:52:55 -04:00
Stewart Allen	7e105f255e	update .ctb options	2026-07-26 13:52:55 -04:00
Stewart Allen	b65d4ae57e	add tilt tray for .goo and new elegoo targets	2026-07-26 13:52:55 -04:00
Stewart Allen	f32af7eeb1	fix widget + tab assignment when slicing	2026-07-26 13:52:55 -04:00