Open the new LDD model (it will have CAM_SET in the name) and capture it to a 3DXML file with 3DVIA Printscreen. This saves a new LDD model with the camera set in the proper position for 3DXML capturing. Launch 3DXML to OBJ and enter your LDD model name in the first text box, then click 'Move camera'. Save your LDD model in 3DXML to OBJ's 'Models' folder. LDD should have high-quality rendering options disabled.ģDVIA Printscreen must be launched BEFORE LDD.3DVIA Printscreen should be configured so 'Capture of textures' is on, and 'Group by textures' is off.I've only made this to work with LDD captures, compatibility with captures from other programs is not guaranteed. It will automatically name materials and textures with their official LEGO names/IDs. For example, a small house model that's 50350 tris exported from LeoCAD is only 13548 tris with this method - and with some additional tricks, only 2586 tris. The resulting models are far more optimized than exports from other LEGO building software, thanks to LDD's hidden stud/tube removal. Not many programs can load 3DXML files, so I made a program to convert them to OBJ. It was discontinued years ago, but can still be downloaded from the web archives ( direct installer link). 3DVIA Printscreen can capture LEGO Digital Designer models and save them as 3DXML files.

Ldd models