added files

git-svn-id: svn://anubis/misc/opengl@80 bd8a9e45-a331-0410-811e-c64571078777

spincube/Makefile

@@ -0,0 +1,16 @@
+
+CFLAGS := -Wall
+LDFLAGS := -lglut -lGL -lGLU -lXmu -lXext -lXi -lX11 -lm
+TARGET := cube
+OBJS := cube.o
+
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+	$(CC) -o $@ $^ $(LDFLAGS)
+
+%.o: %.c
+	$(CC) -c -o $@ $< $(CFLAGS)
+
+clean:
+	-rm -f *.o *~ $(TARGET)

spincube/cube.c

@@ -0,0 +1,76 @@
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include <GL/glut.h>
+
+float r = 0.0;
+
+void init(void) 
+{
+	glClearColor (0.0, 0.0, 0.0, 0.0);
+	glShadeModel (GL_FLAT);
+}
+
+void idle(void)
+{
+	r += 0.2;
+	glutPostRedisplay();
+}
+
+void drawcubes(int level, double size)
+{
+	glutWireCube(size);
+	if (!level)
+		return;
+	double a = 0.0;
+	int i;
+	for (i = 0; i < 4; i++)
+	{
+		glPushMatrix();
+			glRotatef(a, 0.0, 1.0, 0.0);
+			glTranslatef(size * 0.375, size * 0.625, size * 0.375);
+			glRotatef(r, 0.0, 1.0, 0.0);
+			drawcubes(level - 1, size * 0.25);
+		glPopMatrix();
+		a += 90.0;
+	}
+}
+
+void display(void)
+{
+	glClear (GL_COLOR_BUFFER_BIT);
+	glColor3f (1.0, 1.0, 1.0);
+	glLoadIdentity ();             /* clear the matrix */
+		/* viewing transformation  */
+	glTranslatef(0.0, -1.0, -5.0);
+	glRotatef(40.0, 1.0, 0.0, 0.0);
+	glRotatef(r, 0.0, 1.0, 0.0);
+
+	drawcubes(4, 2.0);
+
+	glFlush ();
+	glutSwapBuffers();
+}
+
+void reshape (int w, int h)
+{
+	glViewport (0, 0, (GLsizei) w, (GLsizei) h); 
+	glMatrixMode (GL_PROJECTION);
+	glLoadIdentity ();
+	gluPerspective(60.0, 4.0/3.0, 1.5, 20.0);
+	glMatrixMode (GL_MODELVIEW);
+}
+
+int main(int argc, char** argv)
+{
+	glutInit(&argc, argv);
+	glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGB);
+	glutInitWindowSize (800, 600); 
+	glutInitWindowPosition (-1, -1);
+	glutCreateWindow (argv[0]);
+	init ();
+	glutDisplayFunc(display); 
+	glutReshapeFunc(reshape);
+	glutIdleFunc(idle);
+	glutMainLoop();
+	return 0;
+}