Open Cascade Technology: Difference between revisions

Revision as of 11:45, 18 August 2021

Revision as of 11:58, 18 August 2021

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* Added support of OCAF binary files larger than 2 GiB.

* Added "Glue"<ref>{{Cite web|title=Gluing Options in Boolean Component - Forum Open Cascade Technology|url=https://dev.opencascade.org/content/gluing-options-boolean-component|access-date=2021-08-18|website=dev.opencascade.org}}</ref> option to Boolean algorithms.

* Added "Glue" option to Boolean algorithms.

* Added support of annotations, saved views and clipping planes to STEP and XDE.

* Added Weighted OIT ([[Order-independent_transparency]]) rendering feature.

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* WOK (Workshop Organization Kit) has been replaced by [[CMake]] building scripts.

* CDL files have been replaced by pre-generated C++ headers.

* Built-in GPU-accelerated Ray-Tracing / Path-Tracing rendering engine.

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!Open CASCADE Technology 6.9

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|2015-09-28

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* Introduced "Fuzzy"<ref>{{Cite web|title=Fuzzy Boolean Operations - Forum Open Cascade Technology|url=https://dev.opencascade.org/content/fuzzy-boolean-operations|access-date=2021-08-18|website=dev.opencascade.org}}</ref> Boolean operations with specified global tolerance.

* Introduced built-in multi-threading parallelization tools as alternative to [[Threading_Building_Blocks|TBB]] library.

* Improved robustness of surface-surface intersection and curve on surface projection.

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* Introduced multi-threaded version of Boolean operation algorithm.

* Introduced limited [[OpenGL ES]] 2.0 support in 3D viewer.

* Added VIS / TKIVtk component<ref>{{Cite web|title=VTK integration services in OCCT - Forum Open Cascade Technology|url=https://dev.opencascade.org/content/vtk-integration-services-occt|access-date=2021-08-18|website=dev.opencascade.org}}</ref> providing a B-Rep shape presentation builder for [[VTK]] viewer.

* Added support of [[Stereo_display|stereoscopic displays]]<ref>{{Cite web|title=Stereoscopic rendering in Open CASCADE Technology - Forum Open Cascade Technology|url=https://dev.opencascade.org/content/stereoscopic-rendering-open-cascade-technology|access-date=2021-08-18|website=dev.opencascade.org}}</ref> within 3D viewer.

* Added frustum culling feature improving rendering performance.

* Ray-Tracing engine has been switched from [[OpenCL]] to [[OpenGL_Shading_Language|GLSL]] implementation.

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|6.7.1

|2014-04-30

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|* '''License has been changed to [[GNU_Lesser_General_Public_License|LGPL]] 2.1'''.

* Built-in GPU-accelerated Ray-Tracing rendering engine<ref>{{Cite web|title=Ray tracing as alternative rendering method for OCCT visualization component - Forum Open Cascade Technology|url=https://dev.opencascade.org/content/ray-tracing-alternative-rendering-method-occt-visualization-component|access-date=2021-08-18|website=dev.opencascade.org}}</ref> using [[OpenCL]].

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!Open CASCADE Technology 6.6

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=== License change ===

Since 18 December 2013 with version 6.7.0 Open Cascade Technology is available under the [[LGPL]] 2.1 with additional exception.<ref>{{cite web|url=https://dev.opencascade.org/resources/licensing/|title=OCCT license}}</ref><ref>[https://dev.opencascade.org/index.php?q=node/908 OCCT license change]</ref> Versions before that were licensed under the "Open Cascade Technology Public License" which was [[License compatibility|not compatible]] with the [[GPL]]<ref>{{cite web|title=OCCT FAQ|url=https://dev.opencascade.org/resources/faq/|work=dev.opencascade.org|publisher=Open Cascade|access-date=25 June 2021}}</ref> and was considered non-free by the [[Fedora Project|Fedora project]].<ref>{{cite web|last=Callaway |first=Tom |title=Licensing:Main – Bad Licenses |url=https://fedoraproject.org/wiki/Licensing:Main?rd=Licensing |work=fedoraproject.org |publisher=Red Hat, Inc. and others|access-date=18 May 2013}}</ref>

== Functionality ==