SimplyMaya Forums

Welcome to the forum, feel free to ask questions here.

Register FAQ Members List Calendar Mark Forums Read

New Thread
 
Thread Tools
Old 16-08-2005, 09:00 PM   #1
syndrome
Subscriber
 
Join Date: Oct 2004
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Default Rendering Sub D in Mental Ray

i have a prob with rendering my sub d head in mental ray

http://www.blkswanstudios.com/syndro...0wip/wip10.jpg

when i render that head in mental ray only the nurbs eye sphere shows up..


i don't know what im doing wrong

any suggestions? thx
syndrome is offline   Reply With Quote
Old 16-08-2005, 10:06 PM   #2
swankymonkey
Subscriber
 
Join Date: Jul 2004
Location: Northern California
Posts: 445
Thanks: 0
Thanked 0 Times in 0 Posts
Default

MR will only render Sub-Ds if they are quads :hug:

Dave
swankymonkey is offline   Reply With Quote
Old 17-08-2005, 06:46 AM   #3
syndrome
Subscriber
 
Join Date: Oct 2004
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Default

damn! so if even one set of polygons is a tri or a penta then it wont render the entire model!?!
syndrome is offline   Reply With Quote
Old 17-08-2005, 11:25 AM   #4
lisa_gonzalez
Subscriber
 
lisa_gonzalez's Avatar
 
Join Date: Jun 2004
Location: London, England
Posts: 301
Thanks: 0
Thanked 13 Times in 13 Posts
Default

A better way for rendering sub-d's in Mental Ray is to use a Mental Ray approximation mesh node attached to your model. I'm not exactly sure of all the ins and outs of how it works, but I know that it does work (I've used it) and you can render a mesh that has tri's in it as a sub-d.

To use it, go to window -> rendering editors -> mental ray -> approximation editor. Select your mesh and click the 'create' button next to the option 'subdivision approx (poly, subdiv). Next click 'edit', set the approx method to 'length/distance/angle, set the length (play around with the number) and check on 'view dependant'. When you render, it will tesselate your mesh and you should see that it is just like a sub-d surface. Another option to this is to use the collapse hierarchy method on your poly mesh, or to simply remove the quads (which isn't very difficult once your used to it).

Mental Ray will not render a sub-d surface that has tris and quads in the base mesh, as it does not allow them to share vertices.

Hope this helps

LisaG

__________________
When in doubt......smile!

http://www.x-menthelaststand.com/
lisa_gonzalez is offline   Reply With Quote
Old 06-09-2005, 03:56 PM   #5
Minstrel
Subscriber
 
Minstrel's Avatar
 
Join Date: Nov 2002
Location: Made in Spain
Posts: 422
Thanks: 0
Thanked 0 Times in 0 Posts
Default

or just convert to polys and smooth 2...it does suck...
Minstrel is offline   Reply With Quote
New Thread

« Previous Thread | Next Thread »

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

1 Month

$34

Month-to-month billing
$34/month
Unlimited access to all videos
Project files to download
Easy to cancel at anytime
 
 

3 months

$87

Billing every 3 months
$29/month
Unlimited access to all videos
Project files to download
Easy to cancel at anytime
Save $5 per month or $15 in total compared to monthly billing with this package.

12 months

$288

Billing every 12 months
$24/month
Unlimited access to all videos
Project files to download
Easy to cancel at anytime
Save $10 per month or $120 in total compared to monthly billing with this package.

Your plan will automatically renew. You can cancel at any time via your PayPal account to avoid being charged again.

You can view the FAQ on our video plans here. You can contact us directly here. By clicking one of the buttons above, you agree to our Terms and Privacy Policy.