I have been working on an archetecture in blender along with several other projects. I would like to make lights in the pool, halls, rooms, etc. I have turned emit under shaders in the materials section up to 1 but it does not seem to cast light into the area around the model lights.
I have been placing lamps in the modeled lights as a work around but would like to know if there is a better way to get light to come off objects.
Help plz any comments apreciated.
hi, make sure you turned on ‘radio’ in both the materials and render buttons.
Hi DonFi.
Yes it can be achievable. One trick is to use ordinary lamps with no shadows with “Sphere” option set and controlling the Dist value.
Below is an example. Download the blend file for reference.
Thanks, Modron, Iluvblender, I did need to turn radio on in render… Ouch on the time it takes to render that way though. At least 2 times longer.
the more you subdivide the better the result, and the longer the render time.
I was kinda hoping that was the case (subdivision = better results) and figured that the other would be as well (better results = more time spent in render) Floating point math eats comp cycles… every programer knows that.
This may be kind of a dumb question but if I am rendering just to get an idea of how something will look and I have radio turned on, how much would lowering the render rez help speed up the render? like steping it down to 320 x 240? Will I get significant improvements. some rooms in my house are taking like 1 hour 10 to 20 minutes to render at the default setting 800 x 600. I could live with the smaller image as a “proof” of sorts. With out radio turned on they were rendering at under 10 minutes.
You could also test by rendering just a part of the scene where you expect to see radiosity effects. In the camera view (Numpad 0) use Shift-B and outline the area you want to render. Toggle the Border button in the Render panels to turn it off.