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[atyndall/cits2231.git] / scene.c

diff --git a/scene.c b/scene.c
index b85ed9f..3e0f34f 100644 (file)
--- a/scene.c
+++ b/scene.c
@@ -464,24 +464,20 @@ void makeMenu() {
  * @param h New height\r
  */\r
 void windowReshape(int w, int h) {\r
-  glViewport(0, 0, w, h);                    // Reset The Current Viewport\r
-  glMatrixMode(GL_PROJECTION);               // Select The Projection Matrix\r
-  glLoadIdentity();                          // Reset The Projection Matrix\r
-\r
-  // Calculate The Aspect Ratio Of The Window\r
-  gluPerspective(45.0f,45.0f,0.1f,100.0f);\r
-\r
-  glMatrixMode(GL_MODELVIEW);                // Select The Modelview Matrix\r
-  glLoadIdentity();                          // Reset The Modelview Matrix\r
-\r
-      /*glViewport(0, 0, w, h);\r
-    glMatrixMode(GL_PROJECTION); /* switch matrix mode\r
-    glLoadIdentity();\r
-    if (w <= h)\r
-      gluOrtho2D(-2.0, 2.0, -2.0 * (GLfloat) h / (GLfloat) w, 2.0 * (GLfloat) h / (GLfloat) w);\r
-    else\r
-      gluOrtho2D(-2.0 * (GLfloat) w / (GLfloat) h, 2.0 * (GLfloat) w / (GLfloat) h, -2.0, 2.0);\r
-    glMatrixMode(GL_MODELVIEW); /* return to modelview mode */\r
+  GLdouble near = -10.0;\r
+  GLdouble far = 10.0;\r
+\r
+  glViewport(0, 0, (GLsizei) w, (GLsizei) h);\r
+  glMatrixMode(GL_PROJECTION);\r
+  glLoadIdentity();\r
+  if (w <= h) \r
+    glOrtho(near, far, near*(GLfloat)h/(GLfloat)w,\r
+             far*(GLfloat)h/(GLfloat)w, near, far);\r
+  else\r
+    glOrtho(near*(GLfloat)w/(GLfloat)h,\r
+             far*(GLfloat)w/(GLfloat)h, near, far, near, far);\r
+   glMatrixMode(GL_MODELVIEW); \r
+   glLoadIdentity();\r
 }\r
 \r
 /**\r
@@ -502,19 +498,38 @@ void display() {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);\r
    glLoadIdentity();\r
 \r
-   glTranslatef(-1.5f, 0.0f, -6.0f);\r
-\r
+   glTranslatef( 0.0f,  0.0f,  0.0f);\r
    glBegin(GL_QUADS);\r
-     glColor3f(1.0f,0.0f,0.0f);     // Set The Color To Red\r
-     glVertex3f(-1.0f, 1.0f, 0.0f); // Top left\r
-     glVertex3f( 1.0f, 1.0f, 0.0f); // Top Right\r
-     glVertex3f( 1.0f,-1.0f, 0.0f); // Bottom Right\r
-     glVertex3f(-1.0f,-1.0f, 0.0f); // Bottom Left\r
+     glVertex3f( 0.0f,  1.0f, -1.0f);\r
+     glVertex3f( 0.0f,  1.0f,  1.0f);\r
+     glVertex3f( 0.0f, -1.0f,  1.0f);\r
+     glVertex3f( 0.0f, -1.0f, -1.0f);\r
    glEnd();\r
 \r
+\r
+   glTranslatef( 0.0f, 0.0f, -5.0f); // Move into the Screen 10.0\r
+   glutSolidTeapot(1);\r
+\r
+   glMatrixMode(GL_MODELVIEW);\r
+   glLoadIdentity();\r
+   gluLookAt(0.7f, 0.4f, 0.9f, -2.0f, -1.0f, -7.0f, 1.0f, 10.0f, 1.0f);\r
+\r
+\r
+   glMatrixMode(GL_PROJECTION);\r
+  glLoadIdentity();\r
    glutSwapBuffers();\r
 }\r
 \r
+/**\r
+ * init function, sets OpenGL's starting state\r
+ */\r
+void init() {\r
+  glMatrixMode(GL_PROJECTION);\r
+  glLoadIdentity();\r
+  gluPerspective( 60, 1, 0.1, 1000.0);\r
+  glMatrixMode(GL_MODELVIEW);\r
+}\r
+\r
 /**\r
  * Main function\r
  * @param argc Number of arguments\r
@@ -540,11 +555,11 @@ int main(int argc, char **argv) {
     glutInitWindowSize(500, 500);\r
     glutCreateWindow("Scene Editor");\r
 \r
-    glShadeModel(GL_SMOOTH);                        // Enables Smooth Shading\r
-    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);                   // Black Background\r
-    glClearDepth(1.0f);                         // Depth Buffer Setup\r
-    glEnable(GL_DEPTH_TEST);                        // Enables Depth Testing\r
-    glDepthFunc(GL_LEQUAL);                         // The Type Of Depth Test To Do\r
+    glShadeModel(GL_SMOOTH); // Enables Smooth Shading\r
+    glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // Black Background\r
+    glClearDepth(1.0f); // Depth Buffer Setup\r
+    glEnable(GL_DEPTH_TEST); // Enables Depth Testing\r
+    glDepthFunc(GL_LEQUAL);  // the type\r
 \r
     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);          // Really Nice Perspective Calculations\r
 \r
@@ -553,5 +568,8 @@ int main(int argc, char **argv) {
     glutMouseFunc(mouse);\r
 \r
     makeMenu();\r
+\r
+    init();\r
+\r
     glutMainLoop();\r
 }\r