Added const modifier to key and other parameters in lookup.h
Continued ANSIfication, and other fixes and clarifications.
Removed spurious warning about triangle-less patches
Moved paths.h out of rtio.h and included it manually where R_OK was needed
Returned to 32-bit (x2) uv coordinates, since 16-bits was sometimes inadequate
Reduced compile warnings, and other compatibility fixes.
Reduced texture coordinate size to 16-bits/sample
Eliminated copystruct() macro, which is unnecessary in ANSI. Reduced ambiguity warnings for nested if/if/else clauses.
Added prototypes and includes from patch by Randolph Fritz. Added more required includes and reduced other compile warnings.
Fixed serious bug in ranimate where mesh instances were not being freed
Fixed potential bug in reference counting of mesh'es and instance's
Replaced most outdated BSD function calls with their posix equivalents, and cleaned up a few other platform dependencies.
Changed instances of "int4" to "int32" and "int2" to "int16"
Changed (char *) casts for memory copies to (void *) and other fixes
Added (void *) cast to realloc calls
Bug fix in mesh uv coordinate range checking
Added -a option to obj2mesh to incorporate materials in mesh
Returned old behavior with flat surfaces and improved documentation
Numerous bug fixes in new mesh code
First working version of new "mesh" primitive, obj2mesh converter
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