Frequently asked questions
What is mesh simplification?+
Mesh simplification (or decimation) reduces the number of triangles in a 3D model while keeping its overall shape. MeshCrunch uses quadric-error metrics, which collapse edges in a way that preserves silhouette, UVs, and normals.
What 3D formats do you support?+
Import: OBJ, STL, PLY, GLB, glTF, FBX, 3MF, DAE. Export: OBJ, STL, PLY, GLB, glTF, 3MF, DAE, USDZ. In-browser preview currently covers OBJ, STL, PLY, GLB, and glTF.
What is a LOD chain and why do I need one?+
A level-of-detail (LOD) chain is a set of progressively simpler versions of the same model. Engines swap to a lighter LOD as an object moves farther from the camera, saving GPU time without a visible drop in quality.
How large can my files be?+
The free tier accepts files up to 50 MB. Pro raises that to 2 GB per file, and Enterprise removes the limit.
Is my model uploaded to your servers?+
Preview happens entirely in your browser — nothing is uploaded until you start a processing job. Processed files are stored only as long as needed to deliver your result.
Do you have an API?+
Yes — programmatic job submission is available on Pro and Enterprise plans. Contact us for access while it's in private beta.