public bool Overlaps(BBox b)
{
bool x = (pMax.x >= b.pMin.x) && (pMin.x <= b.pMax.x);
bool y = (pMax.y >= b.pMin.y) && (pMin.y <= b.pMax.y);
bool z = (pMax.z >= b.pMin.z) && (pMin.z <= b.pMax.z);
return (x && y && z);
}
public BBox MotionBounds(BBox bBox, bool p)
{
throw new NotImplementedException();
}
public BBox Apply(BBox b)
{
BBox ret = new BBox(Apply(new Point(b.pMin.x, b.pMin.y, b.pMin.z)));
ret = Geometry.Union(ret, Apply(new Point(b.pMax.x, b.pMin.y, b.pMin.z)));
ret = Geometry.Union(ret, Apply(new Point(b.pMin.x, b.pMax.y, b.pMin.z)));
ret = Geometry.Union(ret, Apply(new Point(b.pMin.x, b.pMin.y, b.pMax.z)));
ret = Geometry.Union(ret, Apply(new Point(b.pMin.x, b.pMax.y, b.pMax.z)));
ret = Geometry.Union(ret, Apply(new Point(b.pMax.x, b.pMax.y, b.pMin.z)));
ret = Geometry.Union(ret, Apply(new Point(b.pMax.x, b.pMin.y, b.pMax.z)));
ret = Geometry.Union(ret, Apply(new Point(b.pMax.x, b.pMax.y, b.pMax.z)));
return ret;
}
public override BBox WorldBound()
{
BBox worldBounds = new BBox();
for (int i = 0; i < nverts; i++)
worldBounds = Geometry.Union(worldBounds, p[i]);
return worldBounds;
}
public override BBox ObjectBound()
{
BBox objectBounds = new BBox();
for (int i = 0; i < nverts; i++)
objectBounds = Geometry.Union(objectBounds, WorldToObject.Apply(p[i]));
return objectBounds;
}
public static BBox Union(BBox b, BBox b2)
{
BBox ret = new BBox();
ret.pMin.x = Math.Min(b.pMin.x, b2.pMin.x);
ret.pMin.y = Math.Min(b.pMin.y, b2.pMin.y);
ret.pMin.z = Math.Min(b.pMin.z, b2.pMin.z);
ret.pMax.x = Math.Max(b.pMax.x, b2.pMax.x);
ret.pMax.y = Math.Max(b.pMax.y, b2.pMax.y);
ret.pMax.z = Math.Max(b.pMax.z, b2.pMax.z);
return ret;
}
public static BBox Union(BBox b, Point p)
{
BBox ret = new BBox();
ret.pMin.x = Math.Min(b.pMin.x, p.x);
ret.pMin.y = Math.Min(b.pMin.y, p.y);
ret.pMin.z = Math.Min(b.pMin.z, p.z);
ret.pMax.x = Math.Max(b.pMax.x, p.x);
ret.pMax.y = Math.Max(b.pMax.y, p.y);
ret.pMax.z = Math.Max(b.pMax.z, p.z);
return ret;
}