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Shape |
Shape |
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XXX: what illusion? |
In order to maintain the illusion of a torn piece, the animation has to |
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In order to maintain the illusion, the animation has to be appropriate: |
be appropriate: having the shape of the jagged edge remain while the |
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having the shape of the jagged edge remain while the viewport moves over |
viewport moves over the canvas would still *feel* like a window. |
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the canvas would still *feel* like a window. The shape of the jagged |
The shape of the jagged edge must be tied to the location on the |
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edge must be tied to the location on the background[Fig.3]. |
background[Fig.3]. |
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We show how the GPU can be used to accomplish this - this is the easy |
We show how the GPU can be used to accomplish this - this is the easy |
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part and we can even do this on unextended OpenGL 1.3. To draw a segment |
part and we can even do this on unextended OpenGL 1.3. To draw a segment |