Drag the light bulb around and then press start when ready. Use turbo mode (shift + click green flag) It will take a minute or 2 to be done. You will know it is complete because the global clones variable will be equal to 0.
Please don't try and break it by moving the light bulb whilst it's still going. Also, it should seem fairly obvious, but taking the light bulb outside the box will cause it to break :O This isn't for 3D, I'm just testing to see if a realistic lighting engine on Scratch is possible. This may be developed further later to allow customisation of rooms, doors, etc.
