KIRI Engine is rolling out version 4.2 today with three updates. 3DGS to Mesh 3.0, a 20% speed improvement on the mesh conversion pipeline, and a new Measuring and Scaling tool aimed at 3D printing workflows.
The biggest change is 3DGS-to-Mesh 3.0. When we first covered 3DGS to Mesh 2.0 back in November 2024, the feature was already a step up from the original. Version 3.0 pushes that further, with improvements primarily focused on large surface stability and thin structure retention.
Floors, walls, and tabletops come through with less wobbling and distortion, and thin structures like lamp stands or stanchions hold together instead of breaking apart. The KIRI team tested 3.0 on a human sized Gundam display near their office. In previous versions, the figure came through recognizably, but surrounding details like rope stanchions would fall apart. In 3.0, those details survive.
The team shared several before and after comparisons showing the difference. Furniture holds its shape better, rooms come through much cleaner overall, and small scale geometry like carved surfaces and cabinet edges show noticeably less breakdown. For anyone bringing KIRI scans into Blender or a slicer for 3D printing, this should mean less cleanup work on the mesh before it's usable downstream.
Alongside the quality bump, the 3DGS to Mesh pipeline is now 20% faster. To use the new version, update to KIRI Engine 4.2 and select the 3DGS Scan function when creating your scan. KIRI Engine will generate both the 3DGS model and the mesh from the same capture.
The other addition in 4.2 is a Measuring and Scaling tool, designed to solve a common headache of models opening in slicers at the wrong size. The tool lets users select two points on a model to get an AI estimated distance, then enter the real world measurement to rescale the model before export. It's not precision metrology, but it cuts out the step of having to open a separate app just to fix dimensions.
KIRI Engine 4.2 is available now on both the App Store and Google Play.
