/// <summary>
/// This is very hacky.
/// </summary>
public static void AddDropShadow(HUDStandardItem item, Cockpit cockpit, Colorf color,
float falloffWidthPx, Vector2f offset, float fZShift, bool bTrackCockpitScaling = true)
{
if (item is IBoxModelElement == false)
{
throw new Exception("HUDUtil.AddDropShadow: can only add drop shadow to IBoxModelElement");
}
float falloffWidth = falloffWidthPx * cockpit.GetPixelScale();
// [TODO] need interface that provides a HUDShape?
var shape = item as IBoxModelElement;
float w = shape.Size2D.x + falloffWidth;
float h = shape.Size2D.y + falloffWidth;
fRectangleGameObject meshGO = GameObjectFactory.CreateRectangleGO("shadow", w, h, color, false);
meshGO.RotateD(Vector3f.AxisX, -90.0f);
fMaterial dropMat = MaterialUtil.CreateDropShadowMaterial(color, w, h, falloffWidth);
meshGO.SetMaterial(dropMat);
item.AppendNewGO(meshGO, item.RootGameObject, false);
BoxModel.Translate(meshGO, offset, fZShift);
if (bTrackCockpitScaling)
{
PreRenderBehavior pb = meshGO.AddComponent <PreRenderBehavior>();
pb.ParentFGO = meshGO;
pb.AddAction(() => {
Vector3f posW = item.RootGameObject.PointToWorld(meshGO.GetLocalPosition());
((Material)dropMat).SetVector("_Center", new Vector4(posW.x, posW.y, posW.z, 0));
float curWidth = falloffWidthPx * cockpit.GetPixelScale();
Vector2f origSize = shape.Size2D + falloffWidth * Vector2f.One;
Vector2f size = cockpit.GetScaledDimensions(origSize);
float ww = size.x;
float hh = size.y;
((Material)dropMat).SetVector("_Extents", new Vector4(ww / 2, hh / 2, 0, 0));
float newWidth = falloffWidthPx * cockpit.GetPixelScale();
((Material)dropMat).SetFloat("_FalloffWidth", newWidth);
});
}
}