Math/Matrix4: Fix cotangent in projection matrix

Former-commit-id: 57ccfc4fd2a1a8245272328204afa6590a5cb3fb
2015-06-26 14:05:50 +02:00
parent b7b5458c79
commit 7dd4965f9a
2 changed files with 5 additions and 1 deletions
--- a/include/Nazara/Math/Algorithm.hpp
+++ b/include/Nazara/Math/Algorithm.hpp
@@ -16,6 +16,10 @@
 #define M_PI 3.141592653589793238462643
 #endif

+#ifndef M_PI_2
+#define M_PI_2  1.5707963267948966192313217
+#endif
+
 #ifndef M_SQRT2
 #define M_SQRT2 1.4142135623730950488016887
 #endif