Making realistic sunlight + fire settings for Unity

Hi there, a couple questions!

  1. I have a room here, and I need to emulate sunlight streaming through the window. Are there any settings in specific optimal for this?

  2. The room will eventually be imported to Unity. There’s a fireplace there; how should I go about putting the fire in the fireplace? Doesn’t have to be realistic, just wanted to know if there are any settings to make sure no lag happens…I’m new to being a game dev, Unity especially.

Thank you so much, apologies if my wording wasn’t the best or my questions, either lol.