

TKOpenGl now uses GLSL programs by default.Added AIS_Manipulator for interactive object transformations in 3D viewer.Improved rendering performance of Wireframe AIS_Shape presentation.Improved STEP AP242 support, including PMI, dimensions and annotations.OCAF persistence without dynamically-loaded plugins.Added Weighted OIT ( Order-independent_transparency) rendering feature.Added support of annotations, saved views and clipping planes to STEP and XDE.Added "Glue" option to Boolean algorithms.Added support of OCAF binary files larger than 2 GiB.Added support of UNICODE filenames with MinGW-w64.Added distance and size culling rendering features.Optimized surface intersection, shape offset and Boolean operation algorithms.


In 1998 the company abandoned software development to concentrate on services, and most of the software development facilities were sold to Dassault Systèmes, developer of competing CATIA. OCCT is available under the LGPL-2.1-only license permitting its usage in open source and proprietary applications.ĬAS.CADE (abbreviated from Computer Aided Software for Computer Aided Design and Engineering) was originally developed in the early 1990s by Matra Datavision, developer of Euclid CAD software as the underlying infrastructure for its future version Euclid Quantum. OCCT is a full-scale B-Rep (Boundary representation) modeling toolkit. that is developed and supported by Open Cascade SAS company. Open Cascade Technology (OCCT), formerly called CAS.CADE, is an open-source software development platform for 3D CAD, CAM, CAE, etc. Linux, FreeBSD, Mac OS X, Windows, Android, iOS and WebAssembly
