/// <summary>
/// Projects the ghost</summary>
private void ProjectGhost(DomNode ghost,
Ray3F rayw,
HitRecord?hit)
{
ITransformable xformnode = ghost.Cast <ITransformable>();
IBoundable bnode = ghost.As <IBoundable>();
AABB box = bnode.BoundingBox;
Vec3F pt;
if (hit.HasValue && hit.Value.hasNormal)
{
Vec3F rad = box.Radius;
Vec3F norm = hit.Value.normal;
Vec3F absNorm = Vec3F.Abs(norm);
Vec3F offset = Vec3F.ZeroVector;
if (absNorm.X > absNorm.Y)
{
if (absNorm.X > absNorm.Z)
{
offset.X = norm.X > 0 ? rad.X : -rad.X;
}
else
{
offset.Z = norm.Z > 0 ? rad.Z : -rad.Z;
}
}
else
{
if (absNorm.Y > absNorm.Z)
{
offset.Y = norm.Y > 0 ? rad.Y : -rad.Y;
}
else
{
offset.Z = norm.Z > 0 ? rad.Z : -rad.Z;
}
}
Vec3F localCenter = box.Center - xformnode.Translation;
pt = hit.Value.hitPt + (offset - localCenter);
}
else
{
float offset = 6.0f * box.Radius.Length;
pt = rayw.Origin + offset * rayw.Direction;
}
if (ViewType == ViewTypes.Front)
{
pt.Z = 0.0f;
}
else if (ViewType == ViewTypes.Top)
{
pt.Y = 0.0f;
}
else if (ViewType == ViewTypes.Left)
{
pt.X = 0.0f;
}
xformnode.Translation = pt;
}
