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"

No radiosity or light bouncing

alt text alt text

I was looking at documentation and I found the engine does include radiosity/light bouncing. There's a nice example with a red cloth illuminating a room in red (imagelink) . I tried to create a similar effect but I got nowhere really. Is there some sort of radiosity setting I am missing from somewhere in my scene? I'm using the default example map to build. The material on the floor is "demowall" (from the content examples) and the one on the cube is "basicwall" with the base color shifted to red.

Product Version: Not Selected
more ▼

asked Jun 16 '14 at 02:03 PM in Rendering

avatar image

11 2 4 5

avatar image Jacky Jun 16 '14 at 03:36 PM

Did you build the lights? That documentation is on Lightmass - static lighting, so you need to build lighting in order to see the light bounce.

avatar image Trumo Jun 16 '14 at 06:08 PM

Yes I built the lights at all the quality levels.

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

1 answer: sort voted first

When you rebuild with lightmass you should be getting bounce lighting.

It looks like there is actually a subtle amount of red bounce light hitting the floor in your second image. It is more obvious if you scroll down the window so that the actual red cube itself is not visible.

You could try selecting your directional light and increasing the indirectlightingscale and/or saturation. Also you may want to reduce the intensity of the EnvironmentColor or AmbientCubemap since it could be washing out the bounce lighting by adding the opposite color.

more ▼

answered Jun 16 '14 at 06:23 PM

avatar image

2k 56 24 118

avatar image Trumo Jun 16 '14 at 06:49 PM

Please don't mark this as solved yet.

I've built all the lights and there's still no radiosity. See for yourself in this example project I created right now (it shoulde be up in a couple of minutes dropbox is slow today) : https://dl.dropboxusercontent.com/u/17171702/Bouncing.zip

avatar image RyanB STAFF Jun 16 '14 at 06:53 PM

Hmm I did not mean to mark it solved. I am not sure why that is happening. Seems to be every answer I post is now marking threads as solved.... doh

did you try jacking up the indirectlighting scale and turning down the blue skylight?

avatar image Trumo Jun 16 '14 at 09:32 PM

Where is the indirectlighting scale? I have found the indirect lighting intensity and saturation in the directional light properties.

In the lightmass importance volume I can't find anything like that.

In the world settings I found indirect smoothness, quality and occlusion fraction and number of bounces.

avatar image RyanB STAFF Jun 16 '14 at 09:33 PM

I meant the indirect lighting intensity option that you found in the light properties.

avatar image Jacky Jun 16 '14 at 07:06 PM

Just to make sure, do you have a lightmass importance volume in the scene?

avatar image Trumo Jun 16 '14 at 09:24 PM

It's the barebones example map and I just added red cubes. It does have a lightmass importance volume. I set the floor to a matt color and packaged it in the above zip file.

(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