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Micro Bevels


sibarrick

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  • 7 months later...

So I am revisiting this while I have a moment, and I noticed that among my semi-broken vop network (which is pretty easy to correct), I've run into a couple issues and wanted your guys' thoughts. Firstly, I am using the rayhit vop to get the normals of the sampled displaced point, and I am pretty sure it returns the surface normal rather than the geometric normal. Any idea how to get the rayhit vop to return the geometric normal?

 

Also in the patent above, there is one equation which makes little sense to me:

 

f = [1 - (D/R)] • [1 - (Ns•Hn)]2

 

where D R are floats and NHare vectors. They use the same notation for multiplying the two expressions as they do for vectors, so I assume they are not referring to the dot product, though obviously a dot product returns a float which is what this equation should return. Anyone know what is going on here?

 

Thanks!

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