Increased epsilon for incident angle equivalence test
Rejiggered epsilon tests so as not to confuse qsort()
Created BSDF version of Walter et al.
Added BSDF version of Walter et al.
Fixed potential bug due with closely-spaced incident angles
Removed accidentally inserted DEBUG define
Hopefully final change to angle collusion method
Changes to speed installation on cloud computing systems
Improved error reporting (slightly)
Forgot to call exit(1)
Changed behavior so bad incident directions are skipped rather than dying
Improved error message
Added protection against negative BSDF values
Fixed format on debug statement
Made more accepting of older Mountain formats
Eliminated unnecessary copy
Fixed bug in SDsampBSDF()
Bug fix for BTDF sample point plotting in debug version (pabopto2rad)
Fixed one minor and one major bug in super-sampling (major bug in transmission)
Minor optimizations should not affect results