[PD] distortion of gem visuals

[vade]

Id say probably a shader as you thought. Depending on the type of  
distortion you want to correct it could be pretty simple :)

On Dec 15, 2008, at 12:45 PM, punchik punchik wrote:

> hello list, i want to project some gem visuals to a concave surface,  
> and i was wondering if there is a way to distort the gem window in a  
> way that it can fix the distortion generated by the surface, for  
> example if i distort the gem windows as fisheye and i project to the  
> concave surface the image is gonna appear fine . Which do you think  
> is the best way of doing this in puredata? is it possible to use  
> pixel shaders to do this? or which ideas do you have for doing this?  
> maybe theres a program designed or libraries for doing this? any  
> idea would be appreciated
>
>
>
> many thanks
>
> pun.
>
>
>
>
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