# load source picture
Src = ImageSource(file="source.png", start=0, end=0, fps=1, pixel_type="RGB32")

# create white screen with source width and height
Blank_1 = BlankClip(Src, color=$FFFFFF)

# weave 3 source lines with 1 blank line, then turn left
Interleave(Src, Src, Src, Blank_1)
AssumeFieldBased.Weave
AssumeFieldBased.Weave
Weaved_1 = TurnLeft

# weave 3 source lines with 1 blank line, then turn right
Blank_2 = BlankClip(Weaved_1, color=$FFFFFF)
Interleave(Weaved_1, Weaved_1, Weaved_1, Blank_2)
AssumeFieldBased.Weave
AssumeFieldBased.Weave
Weaved_2 = TurnRight

# create the shadow version
ShadowBrightness = 2.0 / 3
ShadowOffsetX    = 2
ShadowOffsetY    = 2
Shadow = Src.Levels(0, 1.00, 255, round(ShadowBrightness * 255), 255).BilinearResize(Weaved_2.Width, Weaved_2.Height).Blur(1.58).AddBorders(ShadowOffsetX, ShadowOffsetY, 0, 0, $FFFFFF).Crop(0, 0, -ShadowOffsetX, -ShadowOffsetY)

# put the Weaved_2 version over the shadow version
Layer(Shadow, Weaved_2, "darken")