Replace Fabric.js Canvas dependency with SceneManager. UndoManager now
serializes via sceneManager.serialize() and restores via loadScene()
with diff-based reconciliation (no flicker, no CORS workarounds).
Replace all FabricObject usage with SceneItem, accessing item.data.x/y/w/h/sx/sy
instead of obj.left/top/width*scaleX. Sync displayObject position/scale after
mutations. Remove breakSelection (no ActiveSelection needed), setCoords calls,
and all fabric imports. Toggle grayscale uses PixiJS ColorMatrixFilter.desaturate().
arrangeByZOrder now uses item.data.z directly instead of canvas object index.
Replace Fabric Canvas/FabricImage/Rect with PixiJS Graphics and
pixi-viewport's toWorld() for coordinate mapping. Upload responses
now dispatch to SceneManager.addImageFromUpload() for images or
create VideoSprite directly for video media types based on the
backend's asset_key and media_type fields.
Implements inline video playback as a PixiJS Sprite subclass with:
- MAX_CONCURRENT_VIDEOS (3) with oldest-eviction policy
- Visibility-based auto play/pause for viewport culling
- Play icon overlay, tap-to-toggle-mute interaction
- Proper resource cleanup on destroy (video element + texture)
Introduces ImageSprite (extends Sprite) that manages per-image LOD
texture swapping via TextureManager. Shows a placeholder rect until
the first texture loads, then upgrades/downgrades tiers based on zoom.
Implements Task 3.1: manages the selected item set with hit testing
in reverse z-order, rubber-band rectangle selection on empty-space drag,
shift-click toggle, and viewport drag-pause during rubber banding.
Integrates with TransformBox to show handles on selection change.
Implements Task 3.2: an interactive transform overlay that draws
8 resize handles (corners + edge midpoints) and a rotation handle
around the combined bounding rect of selected scene items. Each handle
supports pointer-drag to apply scale and rotation transforms.
Implements the main React component wrapping PixiJS v8 Application and
pixi-viewport with: async init, viewport persistence per board,
space-to-pan, spring animation ticker, v1/v2 scene loading, ResizeObserver
resizing, and imperative handle (fitAll, zoom control, scene/viewport access).
Scene serialization layer for the PixiJS migration: defines SceneData v2
types (Image/Video/Text/Group objects) and convertFabricToV2() which
transforms existing Fabric canvas JSON to the new format. Handles asset
key extraction from /api/images/ URLs, group flattening with coordinate
transforms, filter extraction, and edge cases for missing fields.
GPU texture cache keyed by asset:tier that loads textures on demand
via PixiJS Assets.load(), estimates RGBA memory usage, and evicts
least-recently-used entries when the budget is exceeded.
Damped harmonic oscillator with configurable stiffness, damping, mass,
and precision. Includes four presets (drop, gentle, snappy, bounce) and
a SpringManager to batch-tick and auto-remove settled springs.
Queries DB for images where asset_key IS NULL, downloads each from
MinIO, generates LOD tiers (thumb/medium/full), uploads them, and
updates the DB record. Skips LOD for videos, SVGs, and GIFs. Logs
per-image progress and continues on individual failures.
- Upload route now generates 3-tier LOD (thumb/medium/full) for images via
lod-generator service, storing each tier at boards/{boardId}/{imageId}/
- Video uploads (mp4, webm, quicktime) supported as single-file storage
- New DB columns: asset_key (prefix path) and media_type ('image'/'video')
- Backward compatible: minio_path and public_url still populated (point to full tier)
- SVG and GIF skip LOD processing (single file stored)
- Added putBuffer() and MIME_TO_EXT export to minio.js
Sharp-based service that produces thumb (256px), medium (1024px),
and full (pass-through) tiers from an uploaded image buffer.
Skips upscaling when the source is smaller than a tier's width.
- Auto-generate board thumbnail from canvas content on save (webp, 400px)
- Collection cards show stacked/fanned board thumbnails with random offsets
- Three-dot menu on all cards with Rename, Share, Delete actions
- Inline rename for collections (header + card) and boards
- Collection cards show public/private status and member count
- Share button on collection cards for quick access
- Add updateCollection/updateBoard API functions
- Add thumbnail + object_count columns to boards table with migration
- Fix zoom drift: use element-relative coords (offsetX/Y) not getScenePoint
- Fix thumbnail generation breaking viewport: use finally block for restore
- Fix thumbnail bounds: use scene-space obj coords not screen-space getBoundingRect
- Fix object counter: live count from canvas instead of stale DB images table
- Fix three-dot menu clipping by removing overflow:hidden from card containers
- Status bar shows "objects" instead of "images", updates on add/delete
Viewport transform (zoom level + pan offset) is saved to localStorage
keyed by board ID. Restored automatically when reopening the same board.
Debounced 300ms save on zoom/pan to avoid excessive writes.
- Copy/paste/duplicate now uses obj.clone() instead of broken fromObject() serialization
- Ctrl+C stores actual object refs, Ctrl+V clones them — works for images, groups, paths, text
- System clipboard copy (Ctrl+C / Ctrl+Shift+C) properly re-selects after screenshot
- Layer panel: double-click to rename, collapsible groups with expand/collapse arrow
- Auto-indexed names: Image 1, Image 2, Drawing 1, Drawing 2, etc.
- Group children visible in layer panel when expanded
- Copy/paste works on groups and mixed multi-selections
- Bot auto-replies in DMs without @root mention (dm_history.py for rolling context)
- chat_with_history() in llm_client for multi-turn DM conversations
- Fixed MM v11 healthcheck (curl removed from image, now uses mmctl)
- RefBoard PUBLIC_URL set to refboard.unleashtheavatargame.com
- Added RefBoard to cloudflared dependencies
- Updated ROOT-AI-STACK.md: MM 11.4, 19 services, RefBoard, DM support
- RefBoard PRD (docs/plans/refboard-prd.md)
- Editor.tsx: improved clone logic using Fabric.js enqueueObject
Full-featured PureRef-style collaborative canvas for game dev teams:
- Layer panel with visibility, lock, drag reorder, group/ungroup (Ctrl+G/Shift+G)
- Arrangement tools (grid, row, column) via right-click context menu
- Copy to system clipboard (Ctrl+C writes PNG for external paste in Paint etc.)
- Number shortcuts (1-5) for tool selection with visible shortcut badges
- Premium dark UI across all pages (Login, Collections, Boards, Editor)
- Socket.IO rooms for cursors, transforms, and presence notifications
- MinIO image storage with backend proxy, drag/drop and paste upload
Hiren Kangad