X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=scene.c;h=021962126e093ba94391bbfa15640caf70da6f2e;hb=41e8eb95882abe806e22b182768d2dd9361953d2;hp=166cf8c9bd09c1f7c23c53fa9a4133d8ade0861a;hpb=b5bd8adb4a5e60d470e04288ece0ee98e214fb3e;p=atyndall%2Fcits2231.git

diff --git a/scene.c b/scene.c
index 166cf8c..0219621 100644
--- a/scene.c
+++ b/scene.c
@@ -464,7 +464,21 @@ void makeMenu() {
  * @param h New height
  */
 void windowReshape(int w, int h) {
+  GLdouble aspect = (GLfloat) h / (GLfloat) w;
+  GLdouble n = 10.0;
 
+  glViewport(0, 0, w, h);
+
+  glMatrixMode(GL_PROJECTION); /* switch matrix mode*/
+  glLoadIdentity();
+
+  if (w <= h) {
+    gluOrtho2D(-n, n, -n * aspect, n * aspect);
+  } else {
+    gluOrtho2D(-n * aspect, n * aspect, -n, n);
+  }
+
+  glMatrixMode(GL_MODELVIEW); /* return to modelview mode */
 }
 
 /**
@@ -485,16 +499,15 @@ void display() {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();
 
-   glTranslatef(-1.5f, 0.0f, -6.0f);
-
    glBegin(GL_QUADS);
+     glColor3f(1.0f,0.0f,0.0f);     // Set The Color To Red
      glVertex3f(-1.0f, 1.0f, 0.0f); // Top left
      glVertex3f( 1.0f, 1.0f, 0.0f); // Top Right
      glVertex3f( 1.0f,-1.0f, 0.0f); // Bottom Right
      glVertex3f(-1.0f,-1.0f, 0.0f); // Bottom Left
    glEnd();
 
-   glFlush();
+   glutSwapBuffers();
 }
 
 /**
@@ -521,10 +534,18 @@ int main(int argc, char **argv) {
     glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
     glutInitWindowSize(500, 500);
     glutCreateWindow("Scene Editor");
+
+    glShadeModel(GL_SMOOTH);                        // Enables Smooth Shading
+    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);                   // Black Background
+    glClearDepth(1.0f);                         // Depth Buffer Setup
+    glEnable(GL_DEPTH_TEST);                        // Enables Depth Testing
+    glDepthFunc(GL_LEQUAL);                         // The Type Of Depth Test To Do
+
+    glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);          // Really Nice Perspective Calculations
+
     glutReshapeFunc(windowReshape);
     glutDisplayFunc(display);
     glutMouseFunc(mouse);
-    glEnable(GL_DEPTH_TEST); // Enable hidden surface removal
 
     makeMenu();
     glutMainLoop();