Open Collective

Icosa Foundation

COLLECTIVE
vr
open brush
tilt brush
icosa gallery
art
creative
xr
spatial
3d
Fiscal Host: Open Source Collective

Open-source tools for creating, sharing and preserving 3D art. Home of Open Brush, Open Blocks and Icosa Gallery.

This is Icosa Foundation's pageIcosa Foundation
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About

Open-source tools for creating, sharing and preserving 3D and immersive art. Home of Open Brush, Open Blocks and Icosa Gallery, with preservation and interoperability projects including IMM.

Icosa Foundation develops and maintains free, open-source tools for creating, sharing and preserving 3D content.

We maintain Open Brush, a community-led evolution of Tilt Brush; Open Blocks, our evolution of Google Blocks; and Icosa Gallery, an open platform for publishing, discovering and preserving 3D work. We also restore and extend the open-source IMM format and player used for Quill immersive animation, helping keep important immersive works playable and the underlying technology available to new tools.

Icosa began when Google announced the closure of Poly. What started as an effort to preserve an important creative community has grown into an interconnected ecosystem spanning XR creation tools, self-hostable 3D publishing, reusable viewers and importers, open APIs, engine integrations and preservation work for immersive media.

Our projects are community-led, free to use and built to keep creative work accessible long after individual products and platforms disappear.

Funding


Icosa's projects are free and open source. Financial contributions help us pay for the things that volunteer time alone can't cover: hosting and storage for Icosa Gallery, software and store fees, development work, bug bounties, infrastructure and other project costs.

Funding lets us maintain existing software as well as invest in new features, integrations and accessibility across the Icosa ecosystem.

External grant funding has also supported specific development, including work funded through NLnet's NGI0 Entrust and NGI0 Commons programmes.

Links


Code, documentation, bug reports, feature requests and community participation are all valuable contributions. You can find us here:


What we're working on


Open Brush
Continue evolving Open Brush as a modern, extensible XR creation tool, including new creative workflows, improved interoperability, scripting and plugins, and support for current XR hardware.

Open Blocks
Build Open Blocks into a modern, accessible 3D modelling tool while retaining the simplicity that made the original Blocks unique.

Icosa Gallery
Develop an open, self-hostable and interoperable home for 3D content, with better publishing, discovery and preservation, plus reusable APIs, viewers, importers and integrations across Open Brush, Open Blocks, the web, Unity, Blender, Godot and other platforms.

IMM / Quill Player
Restore, preserve and extend the open-source IMM runtime and player used for Quill immersive animation. This includes keeping reproducible builds of disappearing dependencies, modernising playback on current systems and expanding engine and XR support through Unity, Godot and other platforms.

The wider ecosystem
Treat interoperability as a project in its own right: make it easy for assets and immersive works to move between Icosa Gallery, our creation tools, game engines and the web, using open formats, reusable components and APIs rather than locking work to a single application or service.

Contribute

Become a financial contributor.

Financial Contributions

Recurring contribution
Backer

Help keep Open Brush, Open Blocks and Icosa Gallery free, open and actively maintained.

Starts at
$1 USD / month

Latest activity by

+ 9
Recurring contribution
Sponsor

Provide sustained funding for development, infrastructure and maintenance across the Icosa open-source ecosystem.

Starts at
$100 USD / month

Latest activity by

Custom contribution
Donation
Make a custom one-time or recurring contribution.

Latest activity by

+ 46
Membership

If you want to specifically support work on the IMM player and plugins we are working on then you can choose this option Read more

Starts at
$1 USD / month

Latest activity by

Top financial contributors

Individuals

1
Keith Bradner

$6,100 USD since Oct 2021

2
M3 org

$5,078.72 USD since May 2022

3
Tim Aidley

$1,035 USD since Mar 2021

4
CL @ 仙女資本

$900 USD since Sep 2022

5
cedaring

$420 USD since Dec 2021

6
WillowmoonArt

$350 USD since Feb 2021

7
grrlrighter

$315 USD since Aug 2021

8
Dongsuk L

$290 USD since Feb 2021

9
Utopiah

$290 USD since Jan 2022

10
Choates

$265 USD since Feb 2022

11
Craig Spree

$245 USD since Mar 2022

12
Spaced Painter

$201.91 USD since Dec 2021

13
Alice.S

$200 USD since Oct 2022

14
Derverd

$160 USD since Apr 2022

15
Aimi Sekiguchi

$150 USD since Feb 2023

Organizations

1
GitHub Sponsors

$877.04 USD since Apr 2021

2
Estella Tse LLC

$540 USD since Apr 2023

Icosa Foundation is all of us

Our contributors 55

Thank you for supporting Icosa Foundation.

Mike Nisbet

Admin

Peter

Admin

Andy Baker

Admin

Accounts

Admin

Nicola Eslick

Admin

Keith Bradner

sponsor

$6,100 USD

M3 org

$5,079 USD

https://m3org.com/

Tim Aidley

backer

$1,035 USD

CL @ 仙女資本

sponsor

$900 USD

GitHub Sponsors

$877 USD

Estella Tse LLC

backer

$540 USD

cedaring

$420 USD

WillowmoonArt

backer

$350 USD

grrlrighter

backer

$315 USD

Budget

Transparent and open finances.

Monthly financial contribution to Icosa Foundation (Quill...

Credit from Nick to Icosa Foundation •

+$12.00USD
Completed
Contribution #975804
Monthly financial contribution to Icosa | Open Brush (bac...

Credit from Kamila Souckova to Icosa Foundation •

+$2.00USD
Completed
Contribution #597390
Monthly financial contribution to Icosa | Open Brush

Credit from Choates to Icosa Foundation •

+$5.00USD
Completed
Contribution #530657
$
Today’s balance

$700.17 USD

Total raised

$16,403.03 USD

Total disbursed

$15,702.86 USD

Estimated annual budget

$2,032.51 USD

Connect

Let’s get the ball rolling!

News from Icosa Foundation

Updates on our activities and progress.

Icosa Foundation: 2022–2026

Four years of open 3D creation, preservation and growth · It’s been a while. Our last substantial Open Collective update was published at the start of 2022. At that point, Open Brush 1.0 had ju...
Read more
Published on August 28, 2026 by Andy Baker

2021 Retrospective and Open Brush 1.0!

Hello everyone, Mike here, and hello to 2022! The last year has been an amazing time for Tilt Brush, now set free into the hands of the community. I’d like to take this opportunity to review the year we’ve just had, and look forward to what...
Read more
Published on January 8, 2022 by Mike Nisbet

Oculus Rift release and 0.4.0

Hi everyone! Mike from the Icosa team here. We're pleased to announce we have just launched on the Oculus Rift store!...
Read more
Published on August 12, 2021 by Mike Nisbet