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displacement problem

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Gerrit Velthuis
displacement problem
on Feb 12, 2014 at 5:15:21 pm

In the past I made a circular weld seam by putting a Voronoi-noise displacement map (cylindrical texture) on an object.
The (isolated) object is left on the image I attached. I forgot how the object was made.
In a new model I tried to repeat that by using a tube-object (turned into a polygon object) and gave it the same texture (with a little blue shift to make a difference).
The new (blue) object is on the right.

I made all the (texture and material) parameters the same, but I simply can't get the same result.

What am I overlooking ?



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Brian Jones
Re: displacement problem
on Feb 12, 2014 at 5:23:07 pm

did you Optimize the tube after you made it editable?


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Gerrit Velthuis
Re: displacement problem
on Feb 12, 2014 at 5:28:56 pm

Bingo, Brian,thanks.

What is the mechanism behind that ?


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Brian Jones
Re: displacement problem
on Feb 12, 2014 at 6:07:48 pm

most of the parametric objects are disconnected parts when made editable eg. the cylinder is a tube with two caps that, while in the same object, are separate parts. You have to optimize to make them all one piece and get rid of duplicate points occupying the same space (which fixes things like displacement and phong issues if you don't want the parts to act/render separate like that)


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Gerrit Velthuis
Re: displacement problem
on Feb 12, 2014 at 6:19:31 pm

Thanks for the explanation; sounds reasonable.
I'll do some experimenting with that.


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