Downloading Lumion LiveSync for Autodesk AutoCAD 3.60.37 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The actual developer of the program is Act-3D B.V. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Lumion is industry-leading 3D rendering software designed for architects. It enables users to create high-quality visualizations of architectural designs quickly and intuitively, supporting real-time rendering, ray tracing, and seamless integration with major CAD/BIM tools. Lumion offers features for both concept design and detailed presentations, as well as cloud-based collaboration and AI-powered material generation.
You may want to check out more software, such as Autodesk AutoCAD Language Pack - Deutsch, Autodesk AutoCAD Civil 3D 2018 Object Enabler 64 Bit or Autodesk AutoCAD LT 2015 Service Pack 1, which might be related to Lumion LiveSync for Autodesk AutoCAD.
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