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I modeled my room using an Add-on called Archimesh to make more easily windows doors and so on when I finally modeled the room and rendered it I faced 2 problems which are:

  1. I added a sunlight that passes through the window of the room there is light in the room however it is really dim and the glass material of the WINDOW is not transparent I watched how BlenderGuru made the material for the glass and mine still is solid despite the fact that light is coming through the room.

  2. The next problem is rendering I used the Cycles render engine to render the room and got a really grainy image in the sampler I tried increasing the render value to 1000 still looks like crap.

Render of my room

enter image description here

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