Vilters - this render can't use one single infinite light. The "sun" is outside and low, and isn't going to light the room - just one wall, through the blinds.

The slavish rule to follow is not "one light for all situations" - it is "one light in every place that there would be a light in real life".

So - if the room has a ceiling light, you should have a ceiling light.

If the room has a desk lamp, you should have a desk light.

Etc.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)