Please login or register.

Login with username, password and session length
Advanced search  

News:

Forum rules - please read before posting, it can save you a lot of time.

Author Topic: Problem with alpha masks  (Read 3156 times)

0 Members and 1 Guest are viewing this topic.

FogGobbler

  • Regular poster
  • ***
  • Karma: 0
  • Offline Offline
  • Posts: 228
    • View Profile
Problem with alpha masks
« on: February 18, 2007, 08:04:55 PM »
Hi, everybody!

I´ve really got a problem, you could call it a mental blockage in my brain, if you want  ::)

I´m using the 3d-program cinema 4d to render my backgrounds. Am I right that the foreground objects have to be a sprite i put on the background, so that the character can move behind it?

Well, how can i isolate the foreground objects in my picture? I´ve got the option in my renderer to just render a single object and then i´ve got a nice and clean alpha, but since i´m rendering with GI the colors of this object are not correct anymore.

How do you seperate the foreground-objects from your background?

I hope you understand what i´m talking about?  :-\

Thankful for any reply,
Oli
Logged

Mnemonic

  • WME developer
  • Administrator
  • Addicted to WME forum
  • *
  • Karma: 41
  • Offline Offline
  • Gender: Male
  • Posts: 5683
    • View Profile
    • Dead:Code Site
Re: Problem with alpha masks
« Reply #1 on: February 18, 2007, 08:30:43 PM »
What's GI?
Logged
Yes, I do have a twitter account
Please don't send me technical questions in private messages, use the forum. ::wave

metamorphium

  • Global Moderator
  • Addicted to WME forum
  • *
  • Karma: 12
  • Offline Offline
  • Gender: Male
  • Posts: 1511
  • Vampires!
    • View Profile
    • CBE software s.r.o.
Re: Problem with alpha masks
« Reply #2 on: February 18, 2007, 08:47:57 PM »
Global illumination I presume.
Logged
J.U.L.I.A. Enhanced Edition, Vampires!, J.U.L.I.A., J.U.L.I.A. Untold, Ghost in the Sheet

FogGobbler

  • Regular poster
  • ***
  • Karma: 0
  • Offline Offline
  • Posts: 228
    • View Profile
Re: Problem with alpha masks
« Reply #3 on: February 18, 2007, 09:38:53 PM »
Yep, GI=global illumination.

So, found out how to do it, had a bit of masking problem.  ::)

Many greetings,
Oli
Logged

Razorback

  • Lurker
  • *
  • Karma: 1
  • Offline Offline
  • Gender: Male
  • Posts: 37
  • Open the pod bay doors.
    • View Profile
    • CG Portfolio
Re: Problem with alpha masks
« Reply #4 on: February 18, 2007, 09:53:30 PM »
Another way to do it is to render everything and then if you have photoshop or a similar program you can cut around the sprites you need with the polygonal lasso tool and save them on a seperate layer. Then you crop the image to a good size around the sprite ,disable the background layer and save as a PNG.

Thats how I do it.
Logged
 

Page created in 0.063 seconds with 24 queries.