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 13-03-2003, 02:41 PM   #1
undseth
Subscriber
 
undseth's Avatar
 
Join Date: Aug 2002
Posts: 1,135
Thanks: 0
Thanked 0 Times in 0 Posts
Question Displacement

You may find this question a bit silly, but I want to ask;

Do I have to have a high polycount model to use a displacement map?

Or is it possible to use it "straight" on a "simple" nurbs-surface or polygon mesh?
__________________
I do not support Bush! Nor Saddam! Long live UN!
undseth is offline   Reply With Quote
Old 13-03-2003, 03:00 PM   #2
roach105
Subscriber
 
roach105's Avatar
 
Join Date: Dec 2002
Location: T.O Baby!
Posts: 1,016
Thanks: 0
Thanked 1 Time in 1 Post
Default

Hey Undseth, discplacement will depend on the number of polys you are using. so yes, high poly count more detail.
roach105 is offline   Reply With Quote
Old 13-03-2003, 03:21 PM   #3
undseth
Subscriber
 
undseth's Avatar
 
Join Date: Aug 2002
Posts: 1,135
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Ah ok. Thats too bad. It's not easy getting a good displacement without having a really dense poly mesh.

Thanks roach!
__________________
I do not support Bush! Nor Saddam! Long live UN!
undseth is offline   Reply With Quote
Old 13-03-2003, 06:17 PM   #4
kbrown
Moderator
 
kbrown's Avatar
 
Join Date: Sep 2002
Location: London, UK
Posts: 3,198
Thanks: 0
Thanked 8 Times in 8 Posts
Default

I wouldn't underline this. Afaik displacement mainly depends on tessellation and displacement settings of the poly object. To get good results from a single poly plane you'd need to up these values quite a bit. Imho Maya's displacement implementation sucks. Slow as heck...
__________________
Kari
- My Website
- My IMDB

Do a lot, Fail a lot and Learn a lot!
kbrown is offline   Reply With Quote
Old 13-03-2003, 06:34 PM   #5
kbrown
Moderator
 
kbrown's Avatar
 
Join Date: Sep 2002
Location: London, UK
Posts: 3,198
Thanks: 0
Thanked 8 Times in 8 Posts
Default

Here's some proof

This is a single poly plane displaced with a fractal texture. The result isn't even what I expected... ewww...
__________________
Kari
- My Website
- My IMDB

Do a lot, Fail a lot and Learn a lot!
kbrown is offline   Reply With Quote
Old 17-03-2003, 06:55 PM   #6
undseth
Subscriber
 
undseth's Avatar
 
Join Date: Aug 2002
Posts: 1,135
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Yay, I found out something!

After connecting the height field to the shader group (if I remember correctly), I check this setting in the objects attribute editor.

"Feature displacement"

This way, you can create a displacement on a single polygon. And the result is fantastic!

Ooops, seems like Kbrown already said so....

Btw, the manual "states" that the extra sample rate should be set lower than the initial sample rate.
__________________
I do not support Bush! Nor Saddam! Long live UN!
undseth 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 On
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.