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git-svn-id: svn://anubis/misc/opengl@81 bd8a9e45-a331-0410-811e-c64571078777
This commit is contained in:
josh 2008-11-30 22:26:44 +00:00
parent 07b6e80e7b
commit 0b030e341f
1 changed files with 47 additions and 46 deletions
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93
spincube/cube.c
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@ -1,76 +1,77 @@
#include <GL/gl.h> #include <GL/gl.h>
#include <GL/glu.h> #include <GL/glu.h>
#include <GL/glut.h> #include <GL/glut.h>
float r = 0.0; float r = 0.0;
void init(void) void init(void)
{ {
glClearColor (0.0, 0.0, 0.0, 0.0); glClearColor (0.0, 0.0, 0.0, 0.0);
glShadeModel (GL_FLAT); glShadeModel (GL_FLAT);
} }
void idle(void) void idle(void)
{ {
r += 0.2; r += 0.02;
glutPostRedisplay(); glutPostRedisplay();
} }
void drawcubes(int level, double size) void drawcubes(int level, double size)
{ {
glutWireCube(size); glutWireCube(size);
if (!level) if (!level)
return; return;
double a = 0.0; double a = 0.0;
int i; int i;
for (i = 0; i < 4; i++) for (i = 0; i < 4; i++)
{ {
glPushMatrix(); glPushMatrix();
glRotatef(a, 0.0, 1.0, 0.0); glRotatef(a, 0.0, 1.0, 0.0);
glTranslatef(size * 0.375, size * 0.625, size * 0.375); glTranslatef(size * 0.375, size * 0.625, size * 0.375);
glRotatef(r, 0.0, 1.0, 0.0); glRotatef(r, 0.0, 1.0, 0.0);
drawcubes(level - 1, size * 0.25); drawcubes(level - 1, size * 0.25);
glPopMatrix(); glPopMatrix();
a += 90.0; a += 90.0;
} }
} }
void display(void) void display(void)
{ {
glClear (GL_COLOR_BUFFER_BIT); glClear (GL_COLOR_BUFFER_BIT);
glColor3f (1.0, 1.0, 1.0); glColor3f (1.0, 1.0, 1.0);
glLoadIdentity (); /* clear the matrix */ glLoadIdentity (); /* clear the matrix */
/* viewing transformation */ /* viewing transformation */
glTranslatef(0.0, -1.0, -5.0); glTranslatef(0.0, -1.0, -5.0);
glRotatef(40.0, 1.0, 0.0, 0.0); glRotatef(40.0, 1.0, 0.0, 0.0);
glRotatef(r, 0.0, 1.0, 0.0); glRotatef(r, 0.0, 1.0, 0.0);
drawcubes(4, 2.0); drawcubes(4, 2.0);
glFlush (); glFlush ();
glutSwapBuffers(); glutSwapBuffers();
} }
void reshape (int w, int h) void reshape (int w, int h)
{ {
glViewport (0, 0, (GLsizei) w, (GLsizei) h); glViewport (0, 0, (GLsizei) w, (GLsizei) h);
glMatrixMode (GL_PROJECTION); glMatrixMode (GL_PROJECTION);
glLoadIdentity (); glLoadIdentity ();
gluPerspective(60.0, 4.0/3.0, 1.5, 20.0); gluPerspective(60.0, 4.0/3.0, 1.5, 20.0);
glMatrixMode (GL_MODELVIEW); glMatrixMode (GL_MODELVIEW);
} }
int main(int argc, char** argv) int main(int argc, char** argv)
{ {
glutInit(&argc, argv); glutInit(&argc, argv);
glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGB); glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGB);
glutInitWindowSize (800, 600); glutInitWindowSize (800, 600);
glutInitWindowPosition (-1, -1); glutInitWindowPosition (-1, -1);
glutCreateWindow (argv[0]); glutCreateWindow (argv[0]);
init (); init ();
glutDisplayFunc(display); glutDisplayFunc(display);
glutReshapeFunc(reshape); glutReshapeFunc(reshape);
glutIdleFunc(idle); glutIdleFunc(idle);
glutMainLoop(); glutMainLoop();
return 0; return 0;
} }