F3D vs OmniView 3D

F3D is free software for viewing 3D data, browsing models, and generating renderings. It supports lighting and materials for realistic rendering, animations with GPU-accelerated skinning for character rigs, and visualization tasks such as CAD, Gaussian splatting, volume rendering, and scientific work. Its supported formats include VTK, STL, DICOM, STEP, OBJ, glTF, FBX, USD, IFC, and Gaussian splat files, among many others. Packages are available for Windows, macOS, Linux, and Android, and a browser viewer can open or accept dropped files and provides rendering and display controls. Developers can use a Python package, a beta JavaScript/WebAssembly package, or the libf3d C++ library with Python and Java bindings. F3D is distributed under the BSD 3-Clause License. Some capabilities have specific limits: FBX PBR materials and Alembic materials are unsupported, while Gaussian splatting requires OpenGL 4.3, which macOS does not support. Documentation also says volume rendering and HDRI need a decent GPU. Plugins can vary by package.

OmniView 3D lets industrial teams upload CAD models, view them interactively and share them through browser links. Recipients can open shared models on mobile, tablet or desktop without an account or software installation. Listed formats include STEP, IGES, GLB, glTF, OBJ, FBX, STL, PLY, DAE, 3DS, 3MF, DXF, AMF and OFF. Viewing tools include exploded assemblies, automatic dimensions, annotations, hologram mode and interactive catalogs. Models can be embedded with an iframe or shared by URL; listed integrations include ecommerce platforms and sales CRMs. The free Starter plan includes three models and 100 MB, with a watermark and automatic deletion of shared models after three days. Pro costs $59 a month excluding tax, and Business costs $179 a month excluding tax. Both paid plans offer a three-day trial requiring a payment card. Proprietary CAD files such as SolidWorks must be exported as STEP, and native IFC import is not available.