I have problem with rendering in cycles render in this building.
I placed lots of different lamps and increased the amount of emission in the lamp, but it didn't work.
If I render, it shows this:
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1$\begingroup$ Your file link is broken $\endgroup$– stackerCommented Dec 25, 2014 at 20:28
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$\begingroup$ Sory tis is work www54.zippyshare.com/v/3023371/file.html $\endgroup$– Vojtěch HořánekCommented Dec 25, 2014 at 20:32
1 Answer
All the walls etc. only have a glossy shader with 0 roughness. This means light will be reflected specularly, without being scattered. In other words, every surface is acting as a perfect mirror.
See How do you make a lamp light up glossy surfaces? for a more detailed explanation of why this is a problem.
To fix this, try using a diffuse shader instead:
Though eventually you'll want to set up a mix of different shaders (probably a bit of both diffuse and glossy) with textures, etc.