From: Ash Tyndall <git@atyndall.net>
Date: Sun, 9 Oct 2011 11:17:09 +0000 (+0800)
Subject: (no commit message)
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=def47f5467d5b96672c25d79034c88471d580724;p=atyndall%2Fcits2231.git

---

diff --git a/scene.c b/scene.c
index c93b652..30d982a 100644
--- a/scene.c
+++ b/scene.c
@@ -460,34 +460,25 @@ void makeMenu() {
 
 /**
  * Called when window is resized
- * @param width New width
- * @param height New height
+ * @param w New width
+ * @param h New height
  */
 void windowReshape(int w, int h) {
-  /*glViewport(0, 0, (GLsizei)width, (GLsizei)height);
-  printf("Width: %d, height: %d\n", width, height);
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  gluPerspective( 60 * ((GLfloat)height/(GLfloat)width), (GLfloat)width/(GLfloat)height, 0.1, 1000.0);
-  glMatrixMode(GL_MODELVIEW);
-
-  GLdouble near = 0.1;
-  GLdouble far = 1000.0;
-  GLdouble a = (GLfloat)height/(GLfloat)width;
-  GLdouble fov = 60;
-  glFrustum( -a*near*tan(fov/2),  a*near*tan(fov/2),  -a*near*tan(fov/2),  a*near*tan(fov/2), near, far  )*/
-  glViewport(0, 0, (GLsizei) w, (GLsizei) h); // what's GLsizei? Why is it called inside glViewPort?
-   glMatrixMode(GL_PROJECTION); // is it necessary to reset the projection matrix?
+  GLdouble near = -10.0;
+  GLdouble far = 10.0;
+
+  glViewport(0, 0, (GLsizei) w, (GLsizei) h);
+   glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
-   if (w <= h)  // is this calculation universal, could I use it on another program?
-      glOrtho(-5.0, 5.0, -5.0*(GLfloat)h/(GLfloat)w,
-               5.0*(GLfloat)h/(GLfloat)w, -5.0, 5.0);
+   if (w <= h) 
+      glOrtho(near, far, near*(GLfloat)h/(GLfloat)w,
+               far*(GLfloat)h/(GLfloat)w, near, far);
 
    else
-      glOrtho(-5.0*(GLfloat)w/(GLfloat)h,
-               5.0*(GLfloat)w/(GLfloat)h, -5.0, 5.0, -5.0, 5.0);
-   glMatrixMode(GL_MODELVIEW); // why do I set to GL_MODELVIEW at the end?
-   glLoadIdentity(); // why does it get a reset?
+      glOrtho(near*(GLfloat)w/(GLfloat)h,
+               far*(GLfloat)w/(GLfloat)h, near, far, near, far);
+   glMatrixMode(GL_MODELVIEW); 
+   glLoadIdentity();
 }
 
 /**
@@ -508,7 +499,7 @@ void display() {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();
 
-   glTranslatef(0.0f,0.0f,-4.0f); // Move into the Screen 10.0
+   glTranslatef(0.0f,0.0f,-5.0f); // Move into the Screen 10.0
 
    glutSolidTeapot(1);