Must have a feature set comparable to SunFlow. Must be written in a language that is appropriate to the community: Java or C++ (possibly C) there are JavaScript and Python options that have not been considered. Must be open source preferably, LGPL, MIT or Apache license (or equivalent). 
Must create output images via a ray tracer algorithm such that existing knowledge within the community keeps its value, this excludes options such as Reyes rendering as seen in Renderman. This newer engine would need to satisfy several requirements in order to be considered a valuable addition to the program in particular it must have these attributes: So this article was initiated to see if an alternative rendering engine can be found (and eventually added to Sweet Home 3D) to provide more options in the future. In particular it can make no attempt to use the graphics processor in any manner. As SunFlow is no longer maintained, it has not been and will not be brought up to date to use the latest techniques delivered by both academic research and graphic processing hardware progress. This is largely due to the excellent open source library SunFlow which is embedded and used. 
Sweet Home 3D is widely praised in the design community for its good photo rendering capabilities.
Bidirectional engine luxcorerender software#
The purpose of this article is to present some performance and output comparisons of open source ray tracing software that could be used as alternatives to the current photo generation engine embedded in Sweet Home 3D, i.e.
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