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. SunFlow.
Sweet Home 3D is widely praised in the design community for its good photo rendering capabilities. This is largely due to the excellent open source library SunFlow which is embedded and used. As SunFlow is no longer maintained, it has not been and will not be brought up to date to use the latest techniques delivered by both academic research and graphic processing hardware progress. In particular it can make no attempt to use the graphics processor in any manner. 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. 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:
The following candidate list comes primarily from this Wikipedia article but also from other Internet searches.
Table 1. CandidatesContinue reading