jmart714 Posted July 3, 2010 Share Posted July 3, 2010 Is there a way to change the direction of the source light when using Ambiance Occlusion. I've set up a scene that has no lights in it, I just want to use Ambiance Occlusion for light, however, it seems like the source of light is directly above the object. I need it to come in from the side, but I'm not sure there is a way to do this. My other option is to use lights and turn on Radiosity? Quote Link to comment Share on other sites More sharing options...
Fuchur Posted July 3, 2010 Share Posted July 3, 2010 Is there a way to change the direction of the source light when using Ambiance Occlusion. I've set up a scene that has no lights in it, I just want to use Ambiance Occlusion for light, however, it seems like the source of light is directly above the object. I need it to come in from the side, but I'm not sure there is a way to do this. My other option is to use lights and turn on Radiosity? Radiosity will increase the rendering-times heavily... You've got more options so... for example: Why not rotate all the objects? Use Spotlights with soft-shadows created by z-buffer-lights, etc. There is no "click and go"-option like AO, but you can create nearly any look with z-buffers too and the renderingtime will be sooo much shorter. See you *Fuchur* Quote Link to comment Share on other sites More sharing options...
Hash Fellow robcat2075 Posted July 3, 2010 Hash Fellow Share Posted July 3, 2010 is your object on a ground plane? The light may appear to come from above because that is the least occluded direction for the all-over light to come from. The ground plane blocks all ambient light from below. Show a picture if you're doubtful, but that's generally the way AO looks. If you want a hazy light source that really comes from a direction, create an "area light" by putting a light on a a path constraint that zig-zags across some shape that you want light to come from. Render with multi pass, set your motion blur to 20% and set the ease on the path constraint to go from 0% at 0:00 to 20% at 0:00.2 (that's 1/5th of a frame) Quote Link to comment Share on other sites More sharing options...
jmart714 Posted July 3, 2010 Author Share Posted July 3, 2010 Thanks guys. I'll look into these options. I thought about rotating my camera and all my objects, but I wasn't sure if I was missing something with AO. Looks like I've got some testing to do. Quote Link to comment Share on other sites More sharing options...
Xtaz Posted July 3, 2010 Share Posted July 3, 2010 The simplest way to do it is to put a decentralized ground above the object ( project attached ) ... the result is this .. ao.zip Quote Link to comment Share on other sites More sharing options...
zandoriastudios Posted July 6, 2010 Share Posted July 6, 2010 You can use an image for the illumination, instead of global color--so just use an image that defines the direction of the light. Quote Link to comment Share on other sites More sharing options...
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