; LoadWorldDocumentAsync Example - Extended mode
Graphics3D 320,200,0,2
document=CreateWorldDocument("preview-example","Preview Example")
If document=0 Then RuntimeError WorldDocumentError()
world=LoadWorldDocumentAsync(document,WORLD_LOAD_NO_STREAMING)
While Not WorldReady(world)
    If WorldLoadState(world)=WORLD_LOAD_FAILED Then RuntimeError WorldLoadError(world)
    UpdateAsyncLoads 1.0
    Delay 0
Wend
Print "Immutable runtime mirror is ready"
FreeWorld world
FreeWorldDocument document
EndGraphics
End