Hi folks, newbie here. :o
Trying to get to grips with Blender, so have started with an easy (I thought!) model of the Death Star trench run from Starwars.
I have created my simple trench, and added a “sun” light at the approprate angle. This is what I get:
Pretty much what I expected.
However, I obviously want the other walls of the trench to be lit by the light bouncing off the first wall. I am assuming (perhaps incorrectly) that I require radiosity to do this.
Following some tutorials, I enabled radiosity, subdivided the trench, set the emit and ambient properties of my material to 0.1 (I also flipped the normals after some head scratching), This is what I get:
This sort of looks ok other than being way too light, but after some fiddling to try and a darken it, I realised that by setting the “emit” to 0.1, the entire trench is emitting light.
ie, if I turn radiosity off again I get:
This is not what I want, I want only the light reflected from the top half of the wall to light the trench, not the entire trench itself to be an emitter!
Am I going about this the wrong way? Should I be doing a raytrace or something instead?