Forums >> Revit Building >> Technical Support >> Animations - Solar Angles

Marquand

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Joined: Mon, Mar 20, 2006
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I would like to use shadows on my animations, but I noticed that when I do that, the angle of the sun moves with the angle of the camera. Am I doing something wrong? I just want the solar angle to remain unchanged during the length of the animation.

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itsmyalterego

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Joined: Thu, May 28, 2009
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In your sun settings, you probably have the sun coming from the upper right, or something similar, so that's always relative to your camera.  You can create a single day still setting, and even give revit the latitude and longitude,  time of year and time of day for your shadows.

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Marquand

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Joined: Mon, Mar 20, 2006
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That sounded pretty plausible, but as it turns out it was not the sun angle that was changing. As the camera moved, there was a clip distance at which point Revit no longer cast shadows. So it made it look like the shadows were declining. I am playing with the actual 'far clip' setting on the Views and that seems to affect it. Its odd; even though the shadows were well withing the far clip distance, shadow casting seems to have its own far clip, which may be a percentage of the visibility far clip. So I just set far clip to a thousand feet and it seems to be working now.

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itsmyalterego

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Joined: Thu, May 28, 2009
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You can also just turn off far clipping--set it to no clip.  Unless you have a humongous site, this is probably preferable.   

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