Author Topic: Tesselation problems  (Read 5453 times)

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Offline hwolter

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Tesselation problems
« on: March 10, 2010, 07:08:48 am »
Hi

I'm testing keyshot and experienced a serious problem with something that seems to be related to the tesselation of surfaces.

On big and flat surfaces, when applying a rather reflective material (stainless horizontal), I see some long lines crossing them (looks like if it would be the edge of a triangle of a tesselated surface).

Why does that happen?

Regards,

Henrique


Offline hwolter

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Re: Tesselation problems
« Reply #1 on: March 10, 2010, 08:23:58 am »
I'm adding a quick image to illustrate the problem. In the image, what the arrow is indicating is NOT a reflection.


Offline hwolter

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Re: Tesselation problems
« Reply #2 on: March 10, 2010, 08:42:26 am »
Another info I have just noticed: This problem has been happening only with Ansiotropic materials, when ''roughness x'' has a different value from ''roughness y''..........

guest84672

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Re: Tesselation problems
« Reply #3 on: March 10, 2010, 10:13:17 am »
Please make sure to increase tessellation in your modeling software.

Offline hwolter

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Re: Tesselation problems
« Reply #4 on: March 10, 2010, 11:33:37 pm »
I have tryed incresing the tesselation in the 3D software I use (AutoStudio), but it doesn't solve the problem, but simply splits one big problem into many small ones. I don't know if I explain myself, but if before, let's say, I had one big triangle which bothered me, now I have many smaller ones...

Offline hwolter

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Re: Tesselation problems
« Reply #5 on: March 10, 2010, 11:44:26 pm »
By the way, it could be useful to know that this never happened with Hypershot.

guest84672

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Re: Tesselation problems
« Reply #6 on: March 11, 2010, 01:46:54 am »
Can you share the model so we can take a look? Either post it here, or send to [email protected]

BTW. KeyShot = HyperShot - it is the same. But we will certainly look into the issue.

guest84672

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Re: Tesselation problems
« Reply #7 on: March 11, 2010, 06:35:07 am »
Just sent you an email, Harold. Looks fine to me using the latest version. Please let me know what parameters you were using.