glsl: Use M_PI_* macros.
authorMatt Turner <mattst88@gmail.com>
Sun, 6 Apr 2014 05:03:04 +0000 (22:03 -0700)
committerMatt Turner <mattst88@gmail.com>
Tue, 15 Apr 2014 16:24:09 +0000 (09:24 -0700)
commitd877c643bea7a40e37d13d8a967c06fd006d1622
tree344a9b51785bab1ccd9442f00e2c82c057ebe6a2
parent4f20b7d3ddaac1d9f7822ef1b9cbed07b3ef35fe
glsl: Use M_PI_* macros.

Notice our multiple values for M_PI_2, which rounded ...32 up to
...4 and ...5.
src/glsl/builtin_functions.cpp