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View Full Version : any way of controlling shadows in LW?



erikals
06-26-2009, 06:30 AM
i've wondered about this for some time, is there any way of manually controlling shadows this in LW?

http://www.youtube.com/watch?v=peI18FqIrms
http://www.scribd.com/doc/2052970/Material-Retouch

Captain Obvious
06-26-2009, 07:33 AM
That just looks like vertex mapping, to be honest.

erikals
06-26-2009, 08:57 AM
hi,
no, not just vertex mapping, the question is more of how one controls the node setup.

dpont
06-26-2009, 10:05 AM
You can control shadow amount with Shadows node
(last DP Kit x32 update fixed an issue with area soft shadows),
mixing a Color output (without shadows)
with the regular shadows output blended with 'Multiply',
the shadow amount is controled
with something input in the Mixer Opacity,
here a distance spot->sphere in a gradient,

No gradient and gradient,
74667 74668

A simple weight map(negative to positive)
could be used as control.

Denis.

erikals
06-26-2009, 10:26 AM
sweet, http://forums.cgsociety.org/images/smilies/smile.gif
thank you Denis, i will try this http://forums.cgsociety.org/images/smilies/smile.gif

dpont
06-26-2009, 10:36 AM
The node tree,
74669

Debis.

erikals
09-10-2014, 08:53 AM
:bump:

Denis, thank you so much for helping me out back in the days,

i was wondering if you could help me a bit again...

i have this other challenge where i try to replace only the self-shadow of an object,
do you know if this is possible with regular nodes, without using buffers ?

here's an image that explains a bit more >

http://www.erikalstad.com/cgtemp/replace-shadow.png

Slartibartfast
09-10-2014, 09:45 AM
I don't understand exactly what you want to do, but could this help?
I don't think it's self shadow, but rather the shading on the sphere. You can alter it's appearance with nodes like the example below. But that's probably not what you ment?!

124122

erikals
09-10-2014, 10:45 PM
thank you, this is close, i'm testing a bit further... http://erikalstad.com/backup/misc.php_files/smile.gif