From 64b76bd085106fa34ccb7f893d3b6d16467a664f Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+git@gmail.com>
Date: Tue, 10 May 2011 23:10:42 -0400
Subject: [PATCH] convert angles to radians

---
 glslUtil/glslUtil.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/glslUtil/glslUtil.c b/glslUtil/glslUtil.c
index 29b1342..af316f8 100644
--- a/glslUtil/glslUtil.c
+++ b/glslUtil/glslUtil.c
@@ -92,8 +92,8 @@ void guMatrixRotate(guMatrix4x4 *m, GLfloat angle,
         ly /= scale;
         lz /= scale;
     }
-    GLfloat c = cos(angle);
-    GLfloat s = sin(angle);
+    GLfloat c = cos(M_PI * angle / 180.0);
+    GLfloat s = sin(M_PI * angle / 180.0);
     guMatrix4x4 mult;
     GLfloat oc = 1 - c;
     mult[0][0] = lx * lx * oc + c;
@@ -154,7 +154,7 @@ void guPerspective(guMatrix4x4 *m, GLfloat fovy, GLfloat aspect,
             mult[i][j] = 0.0;
         }
     }
-    GLfloat f = 1.0 / tan(fovy / 2.0);
+    GLfloat f = 1.0 / tan(M_PI * fovy / 360.0);
     GLfloat nf = near - far;
     mult[0][0] = f / aspect;
     mult[1][1] = f;