internal float SAHofPair(SSAABB boxa, SSAABB boxb)
{
SSAABB pairbox = boxa;
pairbox.ExpandToFit(boxb);
return(SAH(ref pairbox));
}
internal float SAHofPair(ssBVHNode <GO> nodea, ssBVHNode <GO> nodeb)
{
SSAABB box = nodea.box;
box.ExpandToFit(nodeb.box);
return(SAH(ref box));
}
internal SSAABB AABBofPair(ssBVHNode <GO> nodea, ssBVHNode <GO> nodeb)
{
SSAABB box = nodea.box;
box.ExpandToFit(nodeb.box);
return(box);
}
private void expandVolume(SSBVHNodeAdaptor <GO> nAda, SSAABB targetBox)
{
var boxCopy = box;
box.ExpandToFit(targetBox);
var expanded = !boxCopy.Equals(box);
if (expanded && parent != null)
{
parent.childExpanded(nAda, this);
}
}
public static SSAABB GetBoundingBox(this LoadResult obj)
{
var bbox = new SSAABB();
foreach (var g in obj.Groups)
{
foreach (var f in g.Faces)
{
if (f.Count != 3)
{
throw new NotImplementedException("Non triangular face found in obj");
}
var v0 = obj.Vertices[f[0].VertexIndex - 1].ToVector3();
var v1 = obj.Vertices[f[1].VertexIndex - 1].ToVector3();
var v2 = obj.Vertices[f[2].VertexIndex - 1].ToVector3();
var t = new Triangle(v0, v1, v2, null);
bbox.ExpandToFit(t.BoundingBox);
}
}
return(bbox);
}