[StainlessS]

Elliptical_Marker.avs, EllipticalMarker_Experiment2.avs, and BouncingBallMovie.avs update. Perhaps complete.

EDIT: Hoop

Import("Elliptical_marker.avs")
Return Elliptical_Marker(320,320,iRad=0.75,oSoft=0.5,iSoft=0.5)

EDIT: Hoop-La

Import("Elliptical_marker.avs")
# View inner HUB and out Exterior (Not Black)
A=Elliptical_Marker(320,320,iRad=0.75,oSoft=0.5,iSoft=0.5,cExt=128,chub=128)
# Inverted Inner/outer fading
B=Elliptical_Marker(320,320,iRad=0.75,oSoft=0.5,iSoft=0.5,cExt=128,chub=128,oFI=0,OFO=255,IFI=255,IFO=0)
Return StackHorizontal(A,B)

EDIT:
Hoop-La-La

Import("Elliptical_marker.avs")
WW=320  HH=320  iRad=0.75 oSoft=0.5  iSoft=0.5  
BlankClip.KillAudio
Sym=Colorbars.BicubicResize(WW,HH).KillAudio
msk=Elliptical_Marker(sym.width,sym.height,iRad=iRad,oSoft=oSoft,iSoft=iSoft)
OverLay(Last,Sym,x=(width-Sym.width)/2,y=(height-Sym.height)/2,mask=msk)

EDIT: Hoop-LaLaLa

Import("Elliptical_marker.avs")
msk1=Elliptical_Marker(320,320,iRad=0.75,oSoft=0.5,iSoft=0.5)
msk2=Elliptical_Marker(240,240,iRad=0.50,oSoft=0.5,iSoft=0.5)
msk3=Elliptical_Marker(120,120,iRad=0.25,oSoft=0.5,iSoft=0.5)
M=msk1
M=OverLay(M,msk2,x=(M.width-msk2.width)/2,y=(M.height-msk2.height)/2,mask=msk2)
M=OverLay(M,msk3,x=(M.width-msk3.width)/2,y=(M.height-msk3.height)/2,mask=msk3)
Sym=Colorbars(width=M.Width,height=M.Height).KillAudio
BlankClip
OverLay(Sym,x=(width-Sym.width)/2,y=(height-Sym.height)/2,mask=M)