taerin opened this issue on Mar 31, 2003 ยท 8 posts
taerin posted Mon, 31 March 2003 at 12:52 PM
Hey all - is there a way to have an object accept lights/gels/shadows from a particular light, but not anything around it accept them? I've got a spotlight with a gel on it - the barren winter tree from the B3D cd, for lack of a better one. This spotlight is tracking the object I specifically want that gel falling on, but I don't want the objects around to have any of this light on them. Is there a way to do that? Bryce 5, Win 2k, if it matters. TIA, - taerin
Rayraz posted Mon, 31 March 2003 at 2:00 PM
Bryce doesn't have object specific lighting, but you could maskrender the tree with the light and combine it with the rest of the scene using Photoshop, PSP or a similar program.
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taerin posted Mon, 31 March 2003 at 2:16 PM
How sad... I was hoping not to have to do that... Oh well. Thanks for the info, Ray! :-)
kromekat posted Mon, 31 March 2003 at 2:24 PM
Well you could also control the lights falloff, so that it doesn't cast beyond a certain distance!?
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treemont posted Mon, 31 March 2003 at 2:32 PM
Attached Link: http://www.renderosity.com/viewed.ez?galleryid=361817
I don't know if this is what you need, but you can also use ranged falloff. Something like this image...
madmax_br5 posted Mon, 31 March 2003 at 3:10 PM
yes, calculate how many units the object is away from the light (make cube between the two and in the atributes look at the axis length)and enter than number plus one for the ranged falloff. Now it will only cast light to that distance so if there is nothing extremly close to the object, it should only shine on the object you want.
clay posted Mon, 31 March 2003 at 4:57 PM
You could also try setting up a negative light on your other objects. Just set negative values on the light to suck the light out of areas in your scene.
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Incarnadine posted Mon, 31 March 2003 at 10:02 PM
One other trick than the ranged lighting is to use the lighting gradient with your gel. Start from pure white and put in a sharp fade to black at the end. Then adjust the light levels to get the amount you need. I would also suggest doing this with a parrallel light sized to suit your target object.
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