Lightmapping a closed indoor area?

Questions & Answers
1

Hello,

I’ve been doing my first steps with Beast,

first I’ve quickly modeled a Cornell-Box using Blender, with the front side removed,

and a flat cube with a self-illuminated diffuse shader above as the light source,

everything went right more or less as you can see in this screenshot:

screenshot

Then I tried to make a room, so I closed the Cornell-Box, filling the front side,

I hit the Bake button again, and suddenly, there’s been no lighting calculated,
just a dark-gray Lightmap,

but this is just in the case of the emissive flat box,

it works well with a Directional, Point or Spotlight.

So, my question is,
is there a way to use somehow the emissive box light inside of a Cube, Room,

or any closed area in general?

Thanks in advance. :slight_smile:

2

Did you increase the Emission (Lightmapper) property of the self-illum material? If you got grey, the light probably just isn’t strong enough.

3

Ok problem solved,

the box with the Self-Illum shader was a standard Unity Cube, so I deleted that and added a new one in Blender,

now it's part of the cornell-box mesh with generated Lightmap UVs and marked as "Static".

alt text

A bit rough around the edges but it "works" this time. :)

So thank you very much for your help Warwick Allison.