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leonhard

"explosion view" algorithm

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Hi leonhard,

Sorry, I can't think of any good strategy for weighing the normals/vertices, that is, not one that will always work. If you start weighing vertices based on distance from the parent object, it will probably break when using asymetrical shapes or rotated symetrical shapes.

For example, if the bolt is positioned relative to the parent object at an angle that is a few degrees smaller or larger than 90 degrees, the outward pointing normals will incorrectly influence the explode vector... The effect might not be noticable for one explosion step, but the error is there and probably will show dramatically for objects with a 'deep' hierarchy.

I don't have time to look into those papers suggested by Sneftel, but please keep us posted about your progress. It's an interesting problem and at least I am quite interested in the solution :)

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@remigius: Probably I'll give the normal averaging method a try to see if the error is too big. Another problem I need to take care of are several possible removal directions. Think of a rod in a box that can be moved freely in along its axis. It'd be bad if the directions / normals would cancel each other out this time, resulting in no direction at all.
I'll post the results of my tests here, but this may take some time as the implementation of this project hasn't yet begun. Thanks again for your help!

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