KeyShot Forum

Technical discussions => General discussion => Topic started by: hwolter on March 10, 2010, 07:08:48 am

Title: Tesselation problems
Post by: hwolter 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

Title: Re: Tesselation problems
Post by: hwolter 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.

Title: Re: Tesselation problems
Post by: hwolter 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''..........
Title: Re: Tesselation problems
Post by: guest84672 on March 10, 2010, 10:13:17 am
Please make sure to increase tessellation in your modeling software.
Title: Re: Tesselation problems
Post by: hwolter 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...
Title: Re: Tesselation problems
Post by: hwolter on March 10, 2010, 11:44:26 pm
By the way, it could be useful to know that this never happened with Hypershot.
Title: Re: Tesselation problems
Post by: guest84672 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.
Title: Re: Tesselation problems
Post by: guest84672 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.