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XRT is a raytracing based programmable rendering system for photo-realistic image synthesis built around a plug-in architecture design.


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XRT 1.2.0 released

Posted: 02 Oct 2011 13:22
Tags: downloads

sponza.topview.jpg

Apart from the improved BVH accelerator highlighted in my previous post, there are two other important changes in this version:

  • the code is now compiled with Visual C++ 2010. That affects the list of dependencies (listed in the Downloads page) required to run XRT.
  • a new OBJ generator imports geometry and materials from the Alias/Wavefront object format. There are still some rough edges (especially, I need to extend the list of supported illumination models) but I can already render nice scenes such as the Crytek Sponza Atrium or the Ajax model from Jotero. Given the wealth of OBJ models available on the Internet, the gallery will get even bigger!

For a complete list of changes, see the change log.

Post scriptum

The BVH accelerator code makes heavy use of SSE4 instructions. As a result, it will bomb on older processors that do not support this instruction set. If this is a problem for anyone, I can still provide an SSE4-less accelerator.

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