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View Full Version : How to use weight map to control cel shadow?



moc
04-16-2008, 01:10 PM
Who know that how to use a weight map to control the cel shadow's shape?
these following are the same done by xsi...
http://www.youtube.com/watch?v=YE-AnfhqZqg&feature=related
http://www.youtube.com/watch?v=GWuC2SicwOE


can we do it at the same way?

many thx.

SplineGod
04-16-2008, 04:36 PM
Im not sure if any of the current cel shaders for LW use that method or not.
LW comes with:
AH_Celshader
Super Celshader
BESM

3rd party:
http://d-creation.sakura.ne.jp/plugin/unreal2/index_english.htm

Unreal probably has the most control of all of them.

Surrealist.
04-16-2008, 06:56 PM
William Vaughn also has a video about creating a 2D Cel Shade look with the Node Editor here (http://www.newtek.com/forums/showthread.php?t=77002).

Scroll down to the surfacing section.

Skonk
04-17-2008, 08:43 AM
It would be very nice to get a similar feature to this into lightwave.

spiroz
04-17-2008, 12:52 PM
If you're using nodes for the cel-look you can do it, yes..
You can weightmap between a simple color and a cel-diffused shader..
(hm.. did that make any sense at all..?)

Jim M
04-17-2008, 07:08 PM
Those XSI demos look like its just using weight amps to drive colour... on a single frame.

You can just use gradient based on Light incidence in the colour channel, Nodal or Layers.... With layers you can see this right in your GL window.

SplineGod
04-17-2008, 09:30 PM
If thats the case you could use color by vertex with the airbrush in modeler.

Ztreem
04-18-2008, 01:32 AM
If you only look at the first video it looks like it's that simple, but if you look at video number 2 you'll see it animated, so the weight map need to effect the smoothing of the diffuse channel in some way. I'm sure some node wizard could set something like this up.

Titus
04-19-2008, 11:11 PM
Yes, is not _that_ hard. Actually we're doing the same trick for a project.