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Leonardo Zide 98c67f3705 Align texture acquisition and scoped ownership

Texture lookup previously acquired references implicitly, and mesh sections and
loader requests paired raw texture pointers with manual release paths. Separate
borrowed lookup from scoped acquisition and explicit load requests/waits to match
the piece data ownership API.

Store lcTextureRef in mesh sections and loader requests, retain references on
section copies, and reset worker-shared request handles on the UI thread before
completion, cancellation, or shutdown. Keep reference primitives internal and use
scoped acquisitions for merge validation. Remove redundant section initialization
and synth-notification resets, and document the resulting ownership contracts.

Validation: macOS Debug build, diff whitespace checks, and 30 offscreen lifecycle
checks covering reference copies/moves, texture dependencies, cancellation,
shutdown, merge conflicts, and existing piece ownership paths. Successful GPU
upload/rendering is not covered by the offscreen checks.

2026-10-19 10:38:51 -07:00

asset-loading.md

Align texture acquisition and scoped ownership

2026-10-19 10:38:51 -07:00

COPYING.txt

Updated license. Fixes #848 .

2023-03-18 16:12:31 -07:00

CREDITS.txt

docs/CREDITS.txt: convert from iso 8859-1 to utf8

2021-09-25 19:17:34 +02:00

leocad.1

Update release version to 26.09

2026-09-18 16:43:20 -07:00

README.md

Update README.md

2026-07-22 17:35:22 -07:00

release-checklist.md

Add release checklist

2026-09-19 17:44:46 -07:00

README.md

About LeoCAD

LeoCAD is a CAD program for creating virtual LEGO(R) models. It's available for free under the GNU Public License v2 and works on the Windows, Linux and macOS Operating Systems.

Installation

You can download the latest version of LeoCAD and its Parts Library from the main website at https://www.leocad.org

It's recommended that you install the latest drivers for your video card since LeoCAD uses OpenGL to take advantage of hardware acceleration for rendering.

LeoCAD for Windows

Download the latest LeoCAD-Windows.exe to your computer, double click on the icon to launch the installer and follow the instructions.

LeoCAD for macOS

Download the latest LeoCAD-macOS.dmg to your computer, double click on the icon to open the archive, copy LeoCAD.app to your Applications folder and then launch it from there.

LeoCAD for Linux

There are multiple ways to install LeoCAD on Linux.

Snap Store

You can find LeoCAD in your distribution's Snap Store. Alternatively, you can enter sudo snap install leocad to install it using the command line.
AppImage

Download the latest LeoCAD-Linux.AppImage, make the file executable (chmod +x) and run it.
Flatpak

You can also install LeoCAD releases as a Flatpak from Flathub: https://flathub.org/apps/details/org.leocad.LeoCAD

Note: there might be a delay for new releases to appear there. If you have it already installed, it will be updated.
From source

If you prefer to compile LeoCAD yourself, go to the GitHub releases page at https://github.com/leozide/leocad/releases/latest and download the source archive from there. If you do not already have a Parts Library installed, you will need to download one and follow the installation instructions. More information on how to compile your own executable is available in the Documentation section of https://www.leocad.org

Online Resources

New users should read the online tutorial located at https://www.leocad.org/docs/tutorial1.html to learn how to use LeoCAD.

Website: https://www.leocad.org
GitHub page: https://github.com/leozide/leocad
Unstable builds: https://github.com/leozide/leocad/releases/tag/continuous

Legal Disclaimer

LEGO(R) is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this software.