advanced rendering for AutoCAD
If I set a render to Interior Daylight and turn the lights to ON, the lights don't actually light up. It seems like the lights should light up regardless if make a noticeable difference in the lighting of the render.
Render set to Interior Lighting:
Same scene set to Interior Daylight (lights turned ON):
Make sure your scale is accurate and the value that you're using for your light intensity is accurate. Scale is important to make sure the light source isn't too big-- that does affect its brightness relative to the sun. Making the light source smaller will result in a brighter surface. You can use the cursor when rendering (or in the image editor) to measure the brightness of the source's surface. For reference, a 100 watt light bulb is about 100,000 cd/m^2 (that would be brighter than anything else in the scene-- even snow.)
It's legitimate to turn the sun and perhaps the sky down to 60% or so-- they are calibrated for the brightest day. Any more than that is not recommended.
If you want me to take a look, I'd be happy to.