Indirect light in Carrara 8 Pro

Comments

• wetcircuit Posts: 0

  February 2013 edited December 1969

  Have you turned off Interpolation?

  I saw there was a listing in the bug tracker that using a saved IRRADIANCE MAP function is not working, but I do not know the details...
• ThomasSc Posts: 125

  February 2013 edited December 1969

  Hello, thank you for your post. Yes, I have turned off "Interpolation." It didn't change anything.
• evilproducer Posts: 9,040

  February 2013 edited February 2013

  You may not want to hear this, but turn of IL for animations. Learning how to set up a light rig to simulate GI is well worth the effort from both a skill set perspective and a render speed perspective. PIXAR and all the other CG studios don't use it. They simulate it. That being said, if it's a bug, then it should be corrected.

  Post edited by evilproducer on February 2013
• Gillisgraphics Posts: 13

  February 2013 edited December 1969

  My Daughter is having a "Pixar Movie Marathon" Birthday party and I was creating this, for fun.
  http://dl.dropbox.com/u/15568105/PixarLamp_LPG_BDay2.mov
  I think I am having the same issue you describe as well. It was working well before I had IL turned on.
• 3dView Posts: 0

  February 2013 edited December 1969

  Evilproducer is pretty on target with that advice for animations. Now Short ones like yours would be fine if that bug gets squashed , but I have almost always tried to work around it for longer animations as the time to render can be prohibitive. That said ------yes it does look nice but with IL but in Carrara there has always been a price of long renders with it. Sometimes if you really need it to look a certain way you just have to pay the price . But maybe bring a few I7's to the party. Smiles

  Rich
• ThomasSc Posts: 125

  February 2013 edited December 1969

  Hi,

  Here is a low-res picture.
  https://www.dropbox.com/s/4kz82s157f2epjg/file_animation.jpg

  I wasn't able to reproduce the result without IL. So, I would like to create the animation with IL :)
• wavyeye Posts: 18

  February 2013 edited December 1969

  The saved IR map is only useful for flythrough scenes where only the camera moves like architectural promos.
  If you have animated objects then you will need to use direct lighting as EvilProducer said.

  However....
  There is a halfway house you could try which I found quiet effective.
  Do a high res full GI beauty render with just the set and not the (moving) characters, then project this onto the set as a shadow catcher.
  Turn down the quality for the GI and render your animated characters over the top, when I did this a few years ago I had to use Shader Plus from DCG, but maybe Daz has changed the camera mapping / shadow catching / GI since then.
  Or create light rigs for each character as in regular studio animation techniques and render with direct light.
  I found rendering the background out at two up gave nice crisp results.
  Always use the lowest quality settings you can get away with.

  Personally I'm using Blender more and more because of its CUDA support and render times at 10% of Cararras with my GPU.
• ThomasSc Posts: 125

  February 2013 edited December 1969

  Hello,

  It's the problem gillisgraphics has with its animation. In another animation with a moving character, I used an irradiance map and it worked fine (no flickering). There were some shadow problems though, but with a little effort in After Effects, it turned out to be fine. However, for this animation I have, even an irradiance map for static scenes produces flickering :(

  Render time isn't a problem. It takes for HD almost 2 days, but that's ok.

  Thanks for your efforts woodscreation, I tried multipass and other approaches but wasn't able to find a solution that suits my needs :( / frankly speaking, it just HAVE TO WORK. What's the point anyway?

  Regards,
  Thomas