A mouse controlled
brightness filter is placed in the first (bottom)
layer, a blur filter in the second (middle)
layer and a lens effect in the third (top)
layer. By clicking the applet, the brightness
filter will switch to the second layer, then
the third layer and finally back to first
layer again.
About
MultiLayers
When working
with images or with graphical functions such
as filters, it is possible to apply them in
multiple (or different) layers.
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