Shows lines going through plain defined faces of golden gut.
Shows the plain defined faces of the golden cut.
Just shows curved line.
Fills face below curve

rotates image to right
rotates image to left
continues rotation until an angle of 90 degree is reached. After that rotation is stopped.
image shrinks smaller and smaller
image grows larger and larger
center of image follows cursor
moves center of image like tetris ball from corner to corner
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