smooth hole in cylinder

Introduction to Maya - Rendering in Arnold

This course will look at the fundamentals of rendering in Arnold. We'll go through the different light types available, cameras, shaders, Arnold's render settings and finally how to split an image into render passes (AOV's), before we then reassemble it i

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# 1 22-10-2013 , 04:04 PM

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Hi this one has probably been asked a thousand times, but..

Would someone be able to help with the correct topology on this one.

Graham

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# 2 22-10-2013 , 09:09 PM

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I am not sure why you had to add the edges running into the top and bottom sections. You could control that curvature with the edges running around the middle.

But to be honest it would help to see what shape you are trying to model because it's hard to suggest anything from just the images you've posted.

I see lots of tri's and really long slim poly faces which are going to pinch and crease.

You should avoid long slender poly faces and narrow triangular faces on a curved surface.

"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675

Last edited by ctbram; 23-10-2013 at 11:14 AM.

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# 3 22-10-2013 , 09:14 PM

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Ofcourse, here is a pic from the net..

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# 4 22-10-2013 , 09:16 PM

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ah then I'd say your geo is a bit over kill. give me a sec and I'll post something I think will be a bit cleaner.

"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675

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# 5 22-10-2013 , 10:46 PM

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Okay here you go. Sorry I got all blabby again and went on for 10 minutes for something that takes 2 minutes. It's uploading now so it might take a couple minutes before it's viewable.

https://youtu.be/vrlWOzwOT5E

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"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675

Last edited by ctbram; 23-10-2013 at 11:11 AM.

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# 6 22-10-2013 , 10:51 PM

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looking forward to it.

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# 7 23-10-2013 , 12:11 AM

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Explaining why things happen is not blabbing on and on. Your tutorials are always detailed and helpful. Thanks!

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# 8 23-10-2013 , 02:04 PM

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Agreed, thanks for that Rick. I'll give you a look when its done.

Graham

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# 9 23-10-2013 , 03:46 PM

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Strangely enough when I try to extrude my holes inwards - it sharpens the shape into a more square looking hole.

I've deleted history and am on maya 2013..

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# 10 23-10-2013 , 07:08 PM

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Looks kind of like you have some laminar faces in there. Try mesh>cleanup... and check non-manifold, laminar faces, faces with zero area, and edges with zero length and see if that fixes things.

"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675

Last edited by ctbram; 23-10-2013 at 07:11 PM.

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# 11 25-10-2013 , 11:31 AM

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Ya, I don't know what happened there. but eventually got there.

here are two renders with default settings - physical Sun & sky with simple exposure, then with the photographic node.

If anyone knows how to get good results with the photographic - do share.

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