Radiance project is a set of tools which provide an advanced lighting simulation software package.
It allows very detailed definition of materials' and light sources' properties through the use of advanced techniques like brdf and ies files, as well as a powerful mathematical scripting language, resulting in accurate renderings of scenes which are usually imported from CAD and 3D modelers.
It uses the hybrid approach of Monte Carlo and deterministic ray tracing to achieve a reasonably accurate result in a reasonable time.
What's New in This Release:
· Memory requirements for octree were reduced by a factor of 8.
· Byte-swapping input and output was added to rcalc along with extra error checking for source surfaces, a -spec option in falsecolor to restore the original spectral color scale, the ability to incorporate BSDF data in calculations, and support for persistent rendering and for cumulative calculations.
· Ray weights were corrected for material mixtures.
· Bugs in the shadow cache were fixed.
· Pixel alignment was fixed in pcomb for size reduction and enlargement.
- COMPATIBILITY CHANGE:
- Changed ".pic" extension to ".hdr" in all sources and documentation
- to improve interoperability with other software, since this has become
- the de facto extension for Radiance RGBE and XYZE pictures. Since file
- extensions were never more than a convention in Radiance, this does not
- affect operation, but may require the update of scripts, etc. written
- by others that assume the ".pic" suffix for Radiance output.
- Added -N option to objview to support multiprocessing.
- Improved sampling of circular sources (source, sphere, ring types) with
- quite a bit of help from David Geisler-Moroder.
- Added "rpict" and "rvu" variables to rad, and made these as well as
- the "oconv", "mkillum" and "pfilt" variables accept an alternate
- command path in each case. Change suggested by Lars Grobe based
- on similar Radzilla (radz) facility by Carsten Bauer.
- Fixed rad -v N specification to use actual view name if one.
- Fixed error in mkillum calculation where it neglected indirect
- source cont...