Radiosity is the new thing that is making me want to eat shards of glass. Particularly because the documentation and tutorials available seem to want to impart every single piece of conceivable information except how to actually render with Radiosity. Perhaps I’m just reading the wrong tutorials. Here’s how far I’ve gotten:
I start blender.
I add a cube.
I flip the normals.
I put a sphere inside the cube.
I add a white material to the sphere.
I add a plane and move it close to the ceiling of the cube. I make sure the normal faces downward.
I give it a white material and set it’s emit value to 0.5
I add a blue material to the walls and ceiling of the cube, and a red one to the floor.
I go into the radiosity buttons.
I crank the hemires up full.
I crank the iterations to 500.
I select all the meshes.
I click “collect meshes”
I click “gour”
I click “go”
I wait. It does some stuff. Things look fantastic… in the 3D editor window.
I go to the Render buttons.
I switch on the Radiosity rendering.
I hit Render.
I wait.
I yell “WTF” and other profanities.
(Top image is the editor window after clicking “Go”, the bottom is the render.)
Now replace mesh, so the illumination is attached to your mesh.
Go into render window, deselect all, (shadow, ray, radio, etc…) and render.
In few seconds You’ll have your image.
move the camera and render again. Few seconds and another render is done
Now You could do an animation of the camera into the door and render all frames in few time
