static void DrawFalloffSphere(float radius, PolyLineProc& lp)
{
float u;
Point3 pt[3];
lp.SetLineColor(GetUIColor(COLOR_SEL_GIZMOS));
// XY
pt[0] = Point3(radius,0.0f,0.0f);
for (int i=1; i<=NUM_SEGS; i++) {
u = float(i)/float(NUM_SEGS) * TWOPI;
pt[1].x = (float)cos(u) * radius;
pt[1].y = (float)sin(u) * radius;
pt[1].z = 0.0f;
lp.proc(pt,2);
pt[0] = pt[1];
}
// YZ
pt[0] = Point3(0.0f,radius,0.0f);
for (int i=1; i<=NUM_SEGS; i++) {
u = float(i)/float(NUM_SEGS) * TWOPI;
pt[1].y = (float)cos(u) * radius;
pt[1].z = (float)sin(u) * radius;
pt[1].x = 0.0f;
lp.proc(pt,2);
pt[0] = pt[1];
}
// ZX
pt[0] = Point3(0.0f,0.0f,radius);
for (int i=1; i<=NUM_SEGS; i++) {
u = float(i)/float(NUM_SEGS) * TWOPI;
pt[1].z = (float)cos(u) * radius;
pt[1].x = (float)sin(u) * radius;
pt[1].y = 0.0f;
lp.proc(pt,2);
pt[0] = pt[1];
}
}
