Get Extended Matrix.
Choose a line, then take what your work needs. Every version number on this page is read from where the tool is published.
Recommended for all new Extended Matrix projects — if you are unsure where to start, start here. Current Long-Term Support line, working on Blender 4.5 LTS or later (Mac Intel users included, via Blender 4.5 LTS). Headline: Representation Models management with advanced epoch visualization, Landscape mode, CronoFilter, Document Manager, Proxy Box Creator, and the first fully featured 3DSC.
Blender 4.5+ yEd 3.21 or later
- Status
- Recommended · LTS
- Released
- 2026-05-15
- Supported to
- 2028-12-31
- Manual
- docs.extendedmatrix.org/en/1.5
- Release page
- EM 1.5 →
Active development line that follows the 1.5 LTS cut. No stable release yet — features, APIs and branch URLs may still move before the 1.6 cut. Track day-to-day status on the EM dev tracker. New projects should still start from EM 1.5 LTS.
Blender 5.1+ Editor EMStudio, below
- Status
- In development
- Manual
- docs.extendedmatrix.org/en/1.6
- Release page
- EM 1.6 →
Outgoing Long-Term Support release — recommended only for legacy projects already authored against this version. New projects should start from EM 1.5 LTS. Pinned to Blender 4.5 LTS (the final LTS of the 4.x series), supported through end-of-life for in-flight projects, archive deposits and reproducibility of published work.
Blender 4.5 LTS yEd 3.21 or later
- Status
- Legacy LTS
- Released
- 2024-10-15
- Supported to
- 2027-07-31
- Manual
- docs.extendedmatrix.org/en/1.4.0
- Release page
- EM 1.4 →
The EM palette adds the Extended Matrix typed nodes to yEd — the free graph editor used to author GraphML files. The starting point for anyone who wants to draw an EM by hand.
Extended Matrix palette v.1.5.0.graphml.zip
Direct download of the zipped .graphml palette from the EM_v1.5 branch. Unzip and import into yEd via Edit → Manage Palette → Import Section.
Project-level XLSX template that registers every bibliographic and archival source behind an EM project. Document nodes in the graph cite it via stable D.NN ids. Stable since EM 1.3, valid for EM 1.4/1.5; a revised two-sheet schema is in preparation for EM 1.6 (DP-58).
sources_list v.1.3.2.xlsx
Source registry template — the structured XLSX file where you catalogue every document that will be cited as evidence in the graph.
Canonical project folder tree for any Extended Matrix project — the DosCO document collection, sub-folders for graphs, exports, sources, and the D.NN document naming convention. Pencil-and-paper foundation; unzip into the project root before authoring nodes.
EM_FolderTree_v1.5.zip
Canonical project folder tree — the DosCO document collection, the canonical sub-folders for graphs, exports, sources, and the D.NN naming convention. Pencil-and-paper foundation for any EM project; unzip into the project root before authoring nodes.
Connect an Extended Matrix graph to 3D content inside Blender. Browse stratigraphic units, link proxies, drive visualisation by epoch and property, export to Heriverse and CSV.
Drop it twice. The 1st drag adds the Extended Matrix repository, the 2nd installs it. Already added the repository? Once is enough.
No build for that combination — use the fallback below.
Can't drag & drop?
Add the repository in Edit ▸ Preferences ▸ Get Extensions ▸ Repositories ▸ ＋ ▸ Add Remote Repository, then install EM Tools from the list:
Manual / offline install, without auto-updates: the zip for your system is on the GitHub release ↗.
Heritage Science Metaverse — the web-based publication endpoint of the framework. Opens any EM-aware scene in a browser with paradata pop-ups, epoch switching and collaborative VR.
Web platform — beta access only. See the tool page for how to request enrollment.
3D Survey Collection — photogrammetry workflow management, level-of-detail handling, metadata propagation. The upstream pipeline that produces high-quality 3D models for EM Tools to annotate.
Drop it twice. The 1st drag adds the Extended Matrix repository, the 2nd installs it. Already added the repository? Once is enough.
No build for that combination — use the fallback below.
Can't drag & drop?
Add the repository in Edit ▸ Preferences ▸ Get Extensions ▸ Repositories ▸ ＋ ▸ Add Remote Repository, then install 3D Survey Collection from the list:
Currently in the Dev channel (stable build coming soon).
Manual / offline install, without auto-updates: the zip for your system is on the GitHub release ↗.
Development preview — v1.7.0-dev.18, first fully featured 3DSC for Blender. The stable 1.7.0 release is pending; until it ships, the latest dev build is the recommended download for EM 1.5 users. Its orthogonal views now enter CAD at their real size, with the world file alongside. Installs as a Blender extension via the EM repo (drag-and-drop), exactly like EM Tools — no manual zip handling needed.
Companion to 3DSC that runs the photogrammetric processing inside Agisoft Metashape — chunk management, alignment, mesh generation, texture baking, ready for the LOD step in 3DSC for Blender.
v.1.5.0.zip
Survey pipeline for Agisoft Metashape, paired with 3DSC. Direct download of the v1.5.0 source archive.
The computational core of the EM Framework. Reads, writes, validates and converts EM graphs (GraphML / JSON), enforces the data model, and powers every other tool in the framework.
pip install s3dgraphy First standalone release of the library. In 1.4 the code was bundled inside EM Tools. Install with pip install s3dgraphy (Python 3.11+). EM Tools 1.5 already bundles this internally — you only need pip when scripting against EM data outside Blender.
Sovereign desktop editor for Extended Matrix and successor to yEd from 1.6. Reads and writes em.json natively, imports existing .graphml, and organises work across six task-shaped workspaces. In active development, paired with EM 1.6.
Download EMStudio
Pick your system — the download is the installer for the current build, read from the GitHub release when this page was built.
macOS: the build is unsigned — the first launch needs a
right-click ▸ Open, or
xattr -dr com.apple.quarantine /Applications/EMStudio.app.
Every build, including older ones — release v1.6.0-dev.86 ↗ · all releases ↗
Recommended EM editor from 1.6 onwards. Standalone desktop editor, alpha, developed within the StratiGraph project. Reads and writes em.json natively across six workspaces (Documentation, Graph, DTC, Comparisons, Narrative, Annotator) and imports legacy .graphml graphs into the native format so projects started before 1.6 open in place. Cross-platform installers for macOS (Apple Silicon), Windows and Linux are published with every dev cut — pick yours from the card on the tool page; the version shown is read from the latest published release, not typed here.
Project-level XLSX template that registers every bibliographic and archival source behind an EM project. Document nodes in the graph cite it via stable D.NN ids. Stable since EM 1.3, valid for EM 1.4/1.5; a revised two-sheet schema is in preparation for EM 1.6 (DP-58).
sources_list v.1.3.2.xlsx
Original source registry template, expected to remain valid in 1.6.
Canonical project folder tree for any Extended Matrix project — the DosCO document collection, sub-folders for graphs, exports, sources, and the D.NN document naming convention. Pencil-and-paper foundation; unzip into the project root before authoring nodes.
EM_FolderTree_v1.5.zip
Canonical project folder tree — the DosCO document collection, sub-folders for graphs, exports, sources, and the D.NN naming convention. 1.6 currently reuses the 1.5 folder tree (zip lives on the 1.6 branch for path consistency; identical content). A 1.6-specific revision may ship later if the dev work surfaces new top-level folders.
Connect an Extended Matrix graph to 3D content inside Blender. Browse stratigraphic units, link proxies, drive visualisation by epoch and property, export to Heriverse and CSV.
Drop it twice. The 1st drag adds the Extended Matrix repository, the 2nd installs it. Already added the repository? Once is enough.
No build for that combination — use the fallback below.
Can't drag & drop?
Add the repository in Edit ▸ Preferences ▸ Get Extensions ▸ Repositories ▸ ＋ ▸ Add Remote Repository, then install EM Tools from the list:
Currently in the Dev channel (stable build coming soon).
Manual / offline install, without auto-updates: the zip for your system is on the GitHub release ↗.
Active dev line.
Heritage Science Metaverse — the web-based publication endpoint of the framework. Opens any EM-aware scene in a browser with paradata pop-ups, epoch switching and collaborative VR.
No Heriverse release is paired with 1.6 yet; the exporter evolves alongside it. The runtime is in beta — request enrollment (see the /tools/heriverse/ page).
3D Survey Collection — photogrammetry workflow management, level-of-detail handling, metadata propagation. The upstream pipeline that produces high-quality 3D models for EM Tools to annotate.
No 1.6-paired 3DSC release yet — the 3DSC line continues to ship from the main repo. Install path (same as EM Tools): the Blender extension repo, drag-and-drop, auto-updating.
Companion to 3DSC that runs the photogrammetric processing inside Agisoft Metashape — chunk management, alignment, mesh generation, texture baking, ready for the LOD step in 3DSC for Blender.
No 3DSC for Metashape release is paired with 1.6 yet.
The computational core of the EM Framework. Reads, writes, validates and converts EM graphs (GraphML / JSON), enforces the data model, and powers every other tool in the framework.
pip install "s3dgraphy==1.6.0.dev74" Dev releases are published on PyPI as pre-releases. Install with pip install s3dgraphy==1.6.0.dev74 (the pin is required — pip's default resolver skips pre-releases). Use pip install --upgrade 's3dgraphy>=1.6.0.dev0,<1.6.1' to follow the devN → next → … track. To track HEAD instead, clone the branch and pip install -e ..
The EM palette adds the Extended Matrix typed nodes to yEd — the free graph editor used to author GraphML files. The starting point for anyone who wants to draw an EM by hand.
ExtendedMatrix
Project-level XLSX template that registers every bibliographic and archival source behind an EM project. Document nodes in the graph cite it via stable D.NN ids. Stable since EM 1.3, valid for EM 1.4/1.5; a revised two-sheet schema is in preparation for EM 1.6 (DP-58).
sources_list v.1.3.2.xlsx
Source registry template — designed for 1.3, fully valid in 1.4.
Connect an Extended Matrix graph to 3D content inside Blender. Browse stratigraphic units, link proxies, drive visualisation by epoch and property, export to Heriverse and CSV.
EM-blender-tools_1.4.4.zip
Web-based 3D viewer in the EMF. The reference web viewer for EM 1.4 (paired version 1.4). From EM 1.5 onwards the project moves toward Heriverse, but EMviq remains the right choice for EM 1.4 deposits and for any project that wants a lighter-weight, single-purpose viewer.
emviq
Reference web-visualisation viewer for EM 1.4 — paired-version 1.4. Project page: https://osiris.itabc.cnr.it/scenebaker/index.php/projects/emviq/ . Source code: https://github.com/phoenixbf/emviq.git . Superseded by Heriverse only from EM 1.5 onwards.
3D Survey Collection — photogrammetry workflow management, level-of-detail handling, metadata propagation. The upstream pipeline that produces high-quality 3D models for EM Tools to annotate.
Companion to 3DSC that runs the photogrammetric processing inside Agisoft Metashape — chunk management, alignment, mesh generation, texture baking, ready for the LOD step in 3DSC for Blender.
Older lines and their pinned components are on all versions. Add-ons for Blender that are not part of EM are on Blender add-ons.
Every tool, one by one
Each component has its own page, repository and manual.
- EM palette for yEdGraph editor extension GPL-3.0
- EM Folder TreeCanonical project structure CC-BY-SA 4.0
- EMStudioDesktop EM editor alpha
- source_list.xlsxBibliographic & archival source registry GPL-3.0
- EM ToolsBlender add-on GPL-3.0
- s3dgraphyPython library GPL-3.0
- HeriverseWeb platform beta
- 3DSCSurvey pipeline (Blender) GPL-3.0
- 3DSC for MetashapeSurvey pipeline (Metashape) GPL-3.0
- PyArchInitQGIS plugin GPL-2.0
- EMviqWeb visualisation GPL-3.0