From: Ash Tyndall <git@atyndall.net>
Date: Fri, 21 Oct 2011 00:15:03 +0000 (+0800)
Subject: (no commit message)
X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=commitdiff_plain;h=4bcc8e39f5d73c7b210a48d3ca4dcd53ed8fb37e

---

diff --git a/scene.c b/scene.c
index 0c5329b..fe67e13 100644
--- a/scene.c
+++ b/scene.c
@@ -184,7 +184,15 @@ void makeMenu() {
  */
 void windowReshape(int w, int h) {
   glViewport(0, 0, (GLsizei) w, (GLsizei) h);
-  // **NOTE: windowReshape needs to be re-written using glFrustrum and perspective projection calculations
+  glMatrixMode(GL_PROJECTION);
+  glLoadIdentity();
+  if (w <= h)
+    glFrustum(-1.0, 1.0, -1.0*(GLfloat) h / (GLfloat) w,
+      1.0*(GLfloat) h / (GLfloat) w, 2.0, 10.0);
+  else
+    glFrustum(-1.0*(GLfloat) w / (GLfloat) h,
+       1.0*(GLfloat) w / (GLfloat) h, -1.0, 1.0, 2.0, 10.0);
+  glMatrixMode(GL_MODELVIEW);
 }
 
 /**