first commit

CS4451/oglexamples/light.c

@@ -0,0 +1,59 @@
+#ifdef _WIN32
+#include <windows.h>
+#endif
+#include <GL/glut.h>
+#include <stdlib.h>
+
+void init(void) 
+{
+   GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 };
+   GLfloat mat_shininess[] = { 50.0 };
+   GLfloat light_position[] = { 1.0, 1.0, 1.0, 0.0 };
+   glClearColor (0.0, 0.0, 0.0, 0.0);
+   glShadeModel (GL_SMOOTH);
+
+   glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
+   glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
+   glLightfv(GL_LIGHT0, GL_POSITION, light_position);
+
+   glEnable(GL_LIGHTING);
+   glEnable(GL_LIGHT0);
+   glEnable(GL_DEPTH_TEST);
+}
+
+void display(void)
+{
+   glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+   glutSolidSphere (1.0, 20, 16);
+   glFlush ();
+}
+
+void reshape (int w, int h)
+{
+   glViewport (0, 0, (GLsizei) w, (GLsizei) h);
+   glMatrixMode (GL_PROJECTION);
+   glLoadIdentity();
+   if (w <= h)
+      glOrtho (-1.5, 1.5, -1.5*(GLfloat)h/(GLfloat)w,
+         1.5*(GLfloat)h/(GLfloat)w, -10.0, 10.0);
+   else
+      glOrtho (-1.5*(GLfloat)w/(GLfloat)h,
+         1.5*(GLfloat)w/(GLfloat)h, -1.5, 1.5, -10.0, 10.0);
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+}
+
+int main(int argc, char** argv)
+{
+   glutInit(&argc, argv);
+   glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
+   glutInitWindowSize (500, 500); 
+   glutInitWindowPosition (100, 100);
+   glutCreateWindow (argv[0]);
+   init ();
+   glutDisplayFunc(display); 
+   glutReshapeFunc(reshape);
+   glutMainLoop();
+   return EXIT_SUCCESS;
+}
+