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The purpose of this functionality is to bring a basic ray-tracing solution to existing OCCT visualization toolkit (TKOpenGL). Currently ray-tracing visualization core supports sharp shadows, specular reflections, transparency and adaptive anti-aliasing. However, the basis for all ray-tracing algorithms is versatile, allowing you to add new ray-tracing features easily (such as ambient occlusion). All ray-tracing computations are performed on the GPU using OpenCL framework, allowing real-time rendering performance. It is important to note, that real-time ray-tracing is possible using high-performance GPUs with support of OpenCL 1.1 and higher (such as NVIDIA GeForce 660 or ATI/AMD Radeon 7850). When using low-end GPUs (such as NVIDIA GeForce 640) the ray-tracing performance may slow down significantly. Therefore, even with NVIDIA GeForce 640 you can render scenes with the millions of triangles. The support of OpenCL-enabled CPUs and integrated graphics cards is not guaranteed.
Open CASCADE Technology source repository
-----------------------------------------
This directory contains sources of Open CASCADE Technology (OCCT), a collection
of C++ libraries providing services for 3D surface and solid modeling, CAD data
exchange, and visualization. OCCT can be best applied in development of
software dealing with 3D modeling (CAD), manufacturing / measuring (CAM) or
numerical simulation (CAE).
The OCCT code is subject to the Open CASCADE Technology Public License Version
6.5 (the "License"). You may not use the content of the relevant files except in
compliance with the License. Please see the LICENSE file or obtain a copy of the
License at http://www.opencascade.org and read it completely before using this
software.
In order to build OCCT libraries from these sources for use in your program,
you need to:
1. Download, build, and install the required third-party libraries.
Follow the instructions provided in the documents titled "Building 3rd party
products for OCCT" on http://dev.opencascade.org/?q=home/resources for
installation and building.
2. Install and configure WOK development environment.
See http://dev.opencascade.org/?q=home/resources for the latest build of the
WOK and instructions of configuring it.
3. Use WOK to generate build scripts or project files for your compiler,
then build the libraries.
Note that you may use also the pre-processed source packages that include
makefiles and projects, or binary packages, available for official releases of
OCCT at http://www.opencascade.org. In this case however you will not be able
to re-generate derived files after changing the CDL files (requires WOK).
The current version of OCCT can be consulted in the file
src/Standard/Standard_Version.hxx
For more information regarding OCCT code development please consult the official
OCCT Collaborative Development Portal:
http://dev.opencascade.org