perf: Added array index optimization to calcomp routines
fix: made it so '+f' works as '+forward' instead of trying to load file
fix: Repaired issue with reciprocity and BSDF sampling, thanks to Jon Sargent
fix: Allow different front/back diffuse reflectance in BSDF library
feat(bsdf2ttree): made it so options/parameters may differ per input SIR
fix(bsdf2klems, bsdf2ttree): increased command-line buffer to accommodate comments in Windows
fix(bsdf2klems, bsdf2ttree): preventing issues on Windows with newlines in commands
feat(bsdf2klems, bsdf2ttree): added XML header comments copying useful information from SIR inputs
Removed redundant include files
Added incident patch sampling for more accurate result
Increased default -n option to 1024 (was 256)
Added search to -f for genrev, gensurf, genworm, bsdf2klems, bsdf2ttree, & pcomb
Removed unnecessary calls to c_ccvt()
Minor cosmetic fixes
Prepare for SCons build on Win32 and Win64
Minor cleanup and fixes
Added tristimulus color support for RBF and XML input
Fixed check for number of arguments to allow 3-argument BSDFs
Added missing initialization call
Improved progress bar feedback
Eliminated unnecessary calculation (remnant from previous change)
Added grazing angle extrapolation to BSDF interpolation
Changed progress bar to erase itself when done
Disabled DEBUG statements in BSDF programs and added progress bars
Changed secant correction to patch centers for better normalization
Added tracking of BSDF sample name
Added -l option to limit maximum number of RBF lobes for interpolation
Eliminated matrix transpose, which wasn't working anyway
Added ability to use Dx, Dy and Dz instead of last 3 function parameters
Added code to emit front/back transmission if missing on XML input
Fixed problem with acos(1) returning NaN
Fixed same correlated sampling problem for XML input
Fixed correlated sampling problem for functional BSDFs
New bsdf2klems tool seems to pass basic tests
Untested implementation of Klems conversion from radial basis function
Added bsdf2klems tool -- RBF interpolation currently unimplemented
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