\r
}\r
\r
+static GLfloat floorVertices[4][3] = {\r
+ { -20.0, 0.0, 20.0 },\r
+ { 20.0, 0.0, 20.0 },\r
+ { 20.0, 0.0, -20.0 },\r
+ { -20.0, 0.0, -20.0 },\r
+};\r
+\r
+/* Draw a floor (possibly textured). */\r
+static void\r
+drawFloor(void)\r
+{\r
+ glDisable(GL_LIGHTING);\r
+\r
+ //if (useTexture) {\r
+ // glEnable(GL_TEXTURE_2D);\r
+ //}\r
+\r
+ glBegin(GL_QUADS);\r
+ glTexCoord2f(0.0, 0.0);\r
+ glVertex3fv(floorVertices[0]);\r
+ glTexCoord2f(0.0, 16.0);\r
+ glVertex3fv(floorVertices[1]);\r
+ glTexCoord2f(16.0, 16.0);\r
+ glVertex3fv(floorVertices[2]);\r
+ glTexCoord2f(16.0, 0.0);\r
+ glVertex3fv(floorVertices[3]);\r
+ glEnd();\r
+\r
+ /*if (useTexture) {\r
+ glDisable(GL_TEXTURE_2D);\r
+ }*/\r
+\r
+ glEnable(GL_LIGHTING);\r
+}\r
+\r
+\r
/**\r
* Display function\r
*/\r
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);\r
glLoadIdentity();\r
\r
- glTranslatef( 0.0f, 0.0f, 0.0f);\r
+ /*glTranslatef( 0.0f, 0.0f, 0.0f);\r
glBegin(GL_QUADS);\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
+ 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
+ drawFloor();\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
\r
makeMenu();\r
\r
- glMatrixMode(GL_PROJECTION);\r
- glLoadIdentity();\r
- gluPerspective( 60, 1, 0.1, 1000.0);\r
- glMatrixMode(GL_MODELVIEW);\r
+ init();\r
+\r
+ glMatrixMode(GL_PROJECTION);\r
+ gluPerspective( /* field of view in degree */ 40.0,\r
+ /* aspect ratio */ 1.0,\r
+ /* Z near */ 20.0, /* Z far */ 100.0);\r
+ glMatrixMode(GL_MODELVIEW);\r
+ gluLookAt(0.0, 8.0, 60.0, /* eye is at (0,8,60) */\r
+ 0.0, 8.0, 0.0, /* center is at (0,8,0) */\r
+ 0.0, 1.0, 0.); /* up is in postivie Y direction */\r
\r
glutMainLoop();\r
}\r