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Hash, Inc. - Animation:Master

Replacing 5-pointer with 4-pointers


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Here's my picture of how to deal with a 5-pointer. Note that the spline running through the corner terminates in a CP not attached to any others, the "dangling CP" that has left common memory:

 

Refer to http://www.hash.com/forums/index.php?showtopic=6213 for the rest of the discussion if you've ignored the 'ignore me' topic.

post-7-1086655372.jpg

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Trust me, I wouldn't do it unless absolutely necessary. The only reason I conjectured on such a thing was a query from another user where 5-pointers were absolutely outlawed.

 

However, the reason for the dangling CP is to try and get the curvature of the "bad" 3rd spline to match up with the other two "good" splines running through the patch.

 

Note the second picture is actually how Hash internally does it's thing - but I think there is a little bit of extra black magic thrown in to keep things smooth nowadays.

 

I remember back in 8.5 - you could always tell a 5-point patch by the telltale triangle that the creasing spline would cause.

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