Hi, I’m having a problem…
I am modeling an alien face, but when I rendered it to see how it was, there were many triangular holes.
The applyed modifiers are turbo smooth and symmetry.

	Attachment

	Attachment

Can you show us the wires?

Check for extra faces & edges within your model; plus, you may want to double check to see if your vertices are properly welded as you go.

Chris Robinson
http://www.supercoonstudios.com (Under Development)
3ds Max 2011
Dell Precision 690, Intel Xeon Dual Quads @ 2.66 GHz, Dual NVIDIA Quadro FX4500s, 12 GB RAM, Windonws 7 x64

Here it is.
And another thing...When I imported the object to another program, and rendered it, nothing was wrong.

	Attachment

	Attachment

Did you check for extra faces or edges?

Chris Robinson
http://www.supercoonstudios.com (Under Development)
3ds Max 2011
Dell Precision 690, Intel Xeon Dual Quads @ 2.66 GHz, Dual NVIDIA Quadro FX4500s, 12 GB RAM, Windonws 7 x64

Yes. Nothing is wrong.
And I found out it is a problem with mental ray. When I render with the default scanline render, there is no problem.

When I chose mental ray back, the problem disappeared!
Thanks for the fast replies.

I experienced this problem yesterday, but it was caused by me accidentally switching to a “User” view while strip modeling a somewhat small part; either way, when I switched back to the regular “Perspective” view the problem went away & the object rendered correctly - all be it, I cannot get the problem to reproduce itself this morning.

Chris Robinson
http://www.supercoonstudios.com (Under Development)
3ds Max 2011
Dell Precision 690, Intel Xeon Dual Quads @ 2.66 GHz, Dual NVIDIA Quadro FX4500s, 12 GB RAM, Windonws 7 x64

Well I was finally able to reproduce the problem on a consistent basis.  It appears that mr does not like rendering objects with curvature in orthographic views.  It seems like I remember this being a problem before, but I’m not sure.  I do know that I’ve utilized a camera with the orthographic option selected before with mr & it worked fine, but even that does not appear to be working now.  Very rarely have I had to use this option, but it does present it’s self from time to time with things like text & graphic design type projects; although, renders should really only be done in a perspective & not an orthographic (User) view.

I would like to know why it is doing this, but I have not tested any further render settings to find out; truly, this does not look like a settings issue, but could possibly be some type of bug - maybe.  Checkout the brief renders that somewhat depict this problem, & as I have said, this was not done with a lot of detailed analysis at this point in time.

Chris Robinson
http://www.supercoonstudios.com (Under Development)
3ds Max 2011
Dell Precision 690, Intel Xeon Dual Quads @ 2.66 GHz, Dual NVIDIA Quadro FX4500s, 12 GB RAM, Windonws 7 x64

	Attachment