}\r
\r
\r
+static GLfloat lightColor[] = {0.8, 1.0, 0.8, 1.0}; /* green-tinted */\r
+static GLfloat lightPosition[4];\r
+static float lightAngle = 0.0, lightHeight = 20;\r
+\r
+\r
/**\r
* Display function\r
*/\r
glEnd();*/\r
\r
\r
- glTranslatef( 0.0f, 0.0f, -5.0f); // Move into the Screen 10.0\r
- glutSolidTeapot(1);\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
\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
+ /* Reposition the light source. */\r
+ lightPosition[0] = 12*cos(lightAngle);\r
+ lightPosition[1] = lightHeight;\r
+ lightPosition[2] = 12*sin(lightAngle);\r
+ //if (directionalLight) {\r
+ lightPosition[3] = 0.0;\r
+ //} else {\r
+ // lightPosition[3] = 1.0;\r
+ //}\r
+\r
+ glPushMatrix();\r
+ glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);\r
+\r
+ glEnable(GL_BLEND);\r
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);\r
+ drawFloor();\r
+ glDisable(GL_BLEND);\r
+\r
+ glutSolidTeapot(1);\r
+\r
+ glPushMatrix();\r
+ glDisable(GL_LIGHTING);\r
+ glColor3f(1.0, 1.0, 0.0);\r
+\r
+ /* Draw a yellow ball at the light source. */\r
+ glTranslatef(lightPosition[0], lightPosition[1], lightPosition[2]);\r
+ glutSolidSphere(1.0, 5, 5);\r
+\r
+ glEnable(GL_LIGHTING);\r
+ glPopMatrix();\r
+\r
+ glPopMatrix();\r
+\r
+ glutSwapBuffers();\r
}\r
\r
+\r
/**\r
* Main function\r
* @param argc Number of arguments\r
\r
glutInit(&argc, argv);\r
\r
- glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);\r
+ //glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);\r
+\r
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STENCIL | GLUT_MULTISAMPLE);\r
+\r
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\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
+ // glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Really Nice Perspective Calculations\r
\r
glutReshapeFunc(windowReshape);\r
glutDisplayFunc(display);\r
\r
makeMenu();\r
\r
- init();\r
+ //init();\r
+\r
\r
- glMatrixMode(GL_PROJECTION);\r
+ glEnable(GL_CULL_FACE);\r
+ glEnable(GL_DEPTH_TEST);\r
+ glEnable(GL_TEXTURE_2D);\r
+ glLineWidth(3.0);\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
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
+ glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, 1);\r
+ glLightfv(GL_LIGHT0, GL_DIFFUSE, lightColor);\r
+ glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, 0.1);\r
+ glLightf(GL_LIGHT0, GL_LINEAR_ATTENUATION, 0.05);\r
+ glEnable(GL_LIGHT0);\r
+ glEnable(GL_LIGHTING);\r
+\r
glutMainLoop();\r
}\r