fix: Regression introduced in previous change (almost 5 years ago!)
Minor optimization shouldn't affect behavior
Clarified antimatter behavior in documentation and code comments
Minor code clean-up
Fixed bug in shadow cache related to antimatter holes
Extensive changes to enable rtrace -oTW option for tracking ray contributions
Continued ANSIfication. There are only bits and pieces left now.
Eliminated copystruct() macro, which is unnecessary in ANSI. Reduced ambiguity warnings for nested if/if/else clauses.
Replaced inline copyright notice with #include "copyright.h"
Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
changed modifier checking to take most recent definition
fixed problem with redefined modifiers in clip set
made mixtures work with materials
updated revision number for release 2.0
portability fixes
Initial revision
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