I am having a problem with lighting my room with the sun. I don't think its a problem with my window but just in case I put the node group. No matter how much strength I put on it doesn't light up the room.As long as the room has a ceiling, even if I put the sun in the middle of the room, it will not light up. When I turn off cast shadow however the room lights but I know it is not the way lighting is intended. I am fairly new to blender .
You have 3 options.
- Let the room Recieve Transperent
- Use Cycles render
- Let the Sun light cast no shadows
I believe the first one is most helpful.
1. Let the room Recieve Transperent
Change the material applied to the room. (Not the window)
If you scroll down, you can find the Shadow panel. Tick the Recieve transperent.
This works with the default blender render.
2. Use Cycles render
Cycles is a physic based render and let the light penetrate through the window. For links, check the comment on the question.
3. Let the Sun light cast no shadows
I believe this is not your required solution but just in case this was. The ray will IGNORE the ceiling.
Go to the light setting of the sunlight and Switch from Ray shadow to No shadow. (at the Shadow panel)
What I think is best
Combining 1 and 3 might be a neat solution. Make two sunlights and let one light ray shadows, the other, none. This will lighten up the entire room while especially lighting up the wall on the opposite side of the window.