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zonozz

Using GL drawing a special line

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Hello, everyone:

 

I've googled how to draw a line which like the paint brush, but I'm going to let the line behind gradually disappearing along with the mouse move. Do you guys have some ideas?

 

Thanks.

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Maybe this will help you with line drawing. Once you got that down, making it taper off should simply be a matter of adding a gradient to the alpha channel based of the lines length.

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