SimplyMaya Forums

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

Home / forum / Lounges / Members Lounge / ? about alpha and shadows.
Register FAQ Members List Calendar Mark Forums Read

New Thread
 
Thread Tools
Old 18-02-2003, 08:17 PM   #1
crgowo
Registered User
 
crgowo's Avatar
 
Join Date: Sep 2002
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Default ? about alpha and shadows.

what i want to do is render and object with a shadow and composite but have the shadow be .5 in the alpha grey in the alpha channel so its just appears darker on that spot where the shadow is but still see the bottom layer or the composite. when i try and render out an object taht has a shadow the floor is included in teh alpha so i make add it to a scene layer and turn off visibility but then i get no shadow since there is no floor for the shadow to be on. How do you do this. thanks for your help
crgowo is offline   Reply With Quote
Old 18-02-2003, 08:48 PM   #2
crgowo
Registered User
 
crgowo's Avatar
 
Join Date: Sep 2002
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Default

ok i know it has something to do with Matte Opacity but when i set my value to .5 teh entire plane is .5. how do i make the plane be in the alpha, black, and the shadows casted on it .5 or so on. thanks.
crgowo is offline   Reply With Quote
Old 18-02-2003, 08:57 PM   #3
mtmckinley
The Maya Mountain
 
mtmckinley's Avatar
 
Join Date: Aug 2002
Location: Seattle, WA
Posts: 8,245
Thanks: 1
Thanked 25 Times in 25 Posts
Default

I'm not understanding your question.. perhaps a screenshot would help?
__________________
-Mike
www.mtmckinley.net
The Maya Toolbelt
mtmckinley is offline   Reply With Quote
Old 19-02-2003, 02:36 AM   #4
crgowo
Registered User
 
crgowo's Avatar
 
Join Date: Sep 2002
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Default

well lets just say i want to render a shere that i want to composite on live footage later. i setup the lighting to be the same as the live footage so teh shadows are the same. Well assuming i dont have to worry about reflections how do i render only the shere to to compositied on live footage with a shadow. and in the alpha channel of a frame the shadow is grey, where the sphere is its white and everything else is black? i dont have a site to upload screenshots to show you
crgowo is offline   Reply With Quote
Old 19-02-2003, 03:22 AM   #5
mtmckinley
The Maya Mountain
 
mtmckinley's Avatar
 
Join Date: Aug 2002
Location: Seattle, WA
Posts: 8,245
Thanks: 1
Thanked 25 Times in 25 Posts
Default

you might need to render the sphere and the shadow seperately.
__________________
-Mike
www.mtmckinley.net
The Maya Toolbelt
mtmckinley is offline   Reply With Quote
Old 19-02-2003, 03:27 AM   #6
crgowo
Registered User
 
crgowo's Avatar
 
Join Date: Sep 2002
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Default

how? thats what i wanna find out.
crgowo 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.