x

Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

How to avoid Sub Surface Scattering loss when baking lighting?

Hi guys, I'm experiencing a problem with SSS materials for an ice cave environment. As long as you don't bake the lighting, it looks like a charm, but after a bake all the SSS effect seems to be lost.

Any idea on what's going on? I've never tried to use SSS for such an extensive environment, but renderings looks a little bit TOO different after baking...

Take a look to the screenshot to have a better idea. NO BAKING no_baking BAKING alt text

I'll be glad to have some help on this, maybe I'm doing it completely wrong... :D

-peace- Budello

Product Version: Not Selected
Tags:
sss_nobaking.jpg (454.3 kB)
sss_baking.jpg (327.9 kB)
more ▼

asked Jul 11 '14 at 04:24 PM in Rendering

avatar image

Budello
236 6 8 19

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

2 answers: sort voted first

Hi Budello -

I am going to insert foot into mouth here. The SubSurfacce Scattering should only work with Dynamic lighting (Moveable) and it should not work at all with Static Lighting. Stationary will render the SSS from the point of view of the light but will not render the effect of light coming through the material.

Sorry for my mistake and let me know if I can help you further -

Eric Ketchum

more ▼

answered Jul 15 '14 at 05:40 PM

avatar image

Lovecraft_K ♦♦ STAFF
36.7k 702 260 735

avatar image Budello Jul 15 '14 at 06:06 PM

Ahahahhahah, no problem Eric! I just jumped on another project on these two days and I couldn't answer you earlier: anyway, it's exactly like you're saying. No way to have it working, besides of using a Movable light. I've setup a not so strong static to kick in some soft baked shadow and it looks quite well. I'm a bit concerned about performance... :D

Thanks!

-peace- Budello

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

Hi Budello -

The shadowing method used by Stationary Lights can't currently support SSS materials correctly. Try changing your lights to Static or Movable Mobility. Remember that Opacity input controls how far the light travels through the SSS material.

Thank You

Eric Ketchum

more ▼

answered Jul 11 '14 at 05:12 PM

avatar image

Lovecraft_K ♦♦ STAFF
36.7k 702 260 735

avatar image Budello Jul 12 '14 at 11:16 AM

Hi Eric, I've tried to bake using the main light as Static, but the results are exactly the same. It seems like the only way to have the SSS working is leaving light as Movable. Using Movable was my other shot to solve the problem, the second screenshot is with movable Directional. Any other ideas?

Thanks!

-peace- Budello

avatar image Lovecraft_K ♦♦ STAFF Jul 14 '14 at 02:38 PM

Hi Budello -

That is unusual that should work for you. Would you mind taking a screenshot of your material setup, including the material attributes, so I can try to reproduce exactly what you have?

Thanks

Eric Ketchum

(comments are locked)
10|2000 characters needed characters left
Viewable by all users
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question