CGTalk > Software Specific Forums > Autodesk 3ds max
Login register
Thread Closed share thread « Previous Thread | Next Thread »  
 
Thread Tools Search this Thread Display Modes
Old 02-13-2013, 02:16 AM   #1
Carltheshivan
Veteran
portfolio
Tim Hess
Silver Spring, USA
 
Join Date: Dec 2006
Posts: 37
Select via texture map grayscale values? Is this possible?

I have a model that I want certain parts to be subdivided more than others. the model has an animated displacement map, with the higher areas being ruff and bumpy while the lower areas are smoother. Obviously the ruff parts will need more polygons than the smooth parts to look right, but I don't want to bump up the polycount for the entire model with a meshsmooth as there will be a lot of wasted polys on the smooth parts. I cannot rely on selecting them directly since the displacement map is animated and therefore the parts I need subdivided change as the scene plays out. the scene is already several million triangles and my CPU is not gonna look kindly on adding too many more.

If I could use a texture map to select polys based on its light/dark values (polys below a brightness threshold are unselected while polys above that threshold are selected) I could use a meshsmooth modifier to subdivide those parts only and have a nicely optimized model.

Is there any way at all to do this?
 
Old 02-13-2013, 05:19 AM   #2
Toonman2
Free Particle
 
Toonman2's Avatar
portfolio
Sergio Muciņo
Rigging Artist
Rodeo FX
Canada
 
Join Date: May 2010
Posts: 326
Volume Select can do this, if I remembrer correctly...
 
Old 02-13-2013, 05:31 AM   #3
Carltheshivan
Veteran
portfolio
Tim Hess
Silver Spring, USA
 
Join Date: Dec 2006
Posts: 37
Thumbs up

Indeed it does! Thank you so much!
 
Old 02-13-2013, 05:31 AM   #4
CGTalk Moderation
Lord of the posts
CGTalk Forum Leader
 
Join Date: Sep 2003
Posts: 1,066,481
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
__________________
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
 
Thread Closed share thread


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright Š2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 07:34 PM.


Powered by vBulletin
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.