+ glBegin(GL_LINES);
+ glColor3f(0.2, 1, 0.2);
+ for(i=0; i<rope->num_masses; i++) {
+ for(j=i+1; j<rope->num_masses; j++) {
+ if(rsim_have_spring(rope, i, j)) {
+ glVertex3f(rope->masses[i].p.x, rope->masses[i].p.y, rope->masses[i].p.z);
+ glVertex3f(rope->masses[j].p.x, rope->masses[j].p.y, rope->masses[j].p.z);
+ }
+ }
+ }
+ glEnd();
+
+ glBegin(GL_POINTS);
+ glColor3f(1, 0.2, 0.2);