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Sat, May 31, 2008 at 11:50:45 PM | revit 2009 - lights




Joined: Sun, Oct 14, 2007
23 Posts
4.5 Stars: 2 Votes

I am working in Revit Architecture 2009 and have placed some lights in a space.  Whenever I render the space with artificial lighting the photo is completely dark, even though the lights are turned on in the space... any thoughts?

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Mon, Jun 2, 2008 at 3:55:13 PM | revit 2009 - lights



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Joined: Thu, Dec 16, 2004
792 Posts
4 Stars: 29 Votes

Unfortunately, your eyes render a 60W bulb much brighter than the camera that is built into Mental Ray  Actually, Mental Ray renders an image the way a real camera would see it.  If you have ever taken interior photos you'll notice that your camera always tries to use the flash.  This is because it is too dim in a room for the camera to pick up enough light for an exposure.  This is what is happening to your rendered scene.  Try setting the exposure settings to "brighter" as opposed to the darker setting it comes set at by default.  Play around with it and see if this works.


Also, if you are using a model that was done in 2008 and you just opened it in 2009, replace the llights with the newer lights that are provided with 2009.  When you render, it should report how many artificial lights are being rendered in the scene.  If it says 0, you need to check your lights.  One other posibillity is that you are using the Sun and Shadows only setting.  You need to be sure you are telling it to render Artificial Lights.





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