Rewrite scene file lexer and parser by hand

mmp / pbrt-v3

Source code for pbrt, the renderer described in the third edition of "Physically Based Rendering: From Theory To Implementation", by Matt Pharr, Wenzel Jakob, and Greg Humphreys.

http://pbrt.org

BSD 2-Clause "Simplified" License

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Rewrite scene file lexer and parser by hand #169

Closed mmp closed 6 years ago

mmp commented 6 years ago

This substantially reduces time parsing very complex scene descriptions.

Removed the old flex/bison-based parser.