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How can i get a harsh exadurated shadow on my model in vray?
show user profile  xcloudx
I have a model that is evenly lit but i want to add a very harsh looking shadow around the sides of the model. Could any of you guys possibly help me with this? I'm not sure how exactly to go about doing it.
I've tried using a falloff but i can't get the shadows as dark as i would like them to be, and in my test scene using just HDRI for lighting it looks fine but in my real production scene with many lights it looks strangely metalic?

read 1113 times
2/18/2012 1:25:34 PM (last edit: 2/18/2012 1:25:34 PM)
show user profile  Bolteon
lighting with falloff = not the way to do it.

light with.... light. (and the lack of it)

-Marko Mandaric

read 1098 times
2/18/2012 2:24:29 PM (last edit: 2/18/2012 2:24:29 PM)
show user profile  xcloudx
Thats the problem though, my scene is brightly lit how i want it but i want a harsh shadow around the back of that character model to give it a sort of toony unrealistic look and to stand out againts the scene. I tried the toon shaders but thats not the kind of effect im looking for.
read 1089 times
2/18/2012 4:46:13 PM (last edit: 2/18/2012 4:53:33 PM)
show user profile  BishBashRoss
Post up all the material settings.

read 1079 times
2/18/2012 4:57:16 PM (last edit: 2/18/2012 4:57:16 PM)
show user profile  xcloudx
Thats it really, its just that falloff plugged straight into the diffuse channel of a fresh new vraymtl.
and the rest of the falloff parameters are defaults
read 1061 times
2/19/2012 12:43:29 AM (last edit: 2/19/2012 12:44:27 AM)
show user profile  9krausec
perhaps in the scene set up 2 sets of light.. One set that will affect the scene, and another set (in the same location) that will exclude the scene, but only affect the models.

That way you can have control as to how the models are lit (making the toony and what not), not have the model's lights affect the scene (to get that contrast) and still have the models look like they are interacting with the light sources..

Just an idea.

- Portfolio-

read 1057 times
2/19/2012 12:50:52 AM (last edit: 2/19/2012 12:50:52 AM)
show user profile  Bolteon
post up a ref of what you want it to look like, and we'll help you get there.

-Marko Mandaric

read 1054 times
2/19/2012 12:55:07 AM (last edit: 2/19/2012 12:55:07 AM)
show user profile  xcloudx
Here's what i'm trying to get it to look like. I've got the rimlight done, its just this shading im having trouble with

I've had a little more playing around with it and i got rid of the metal look by reducing the left side of the falloff, but i still cant get the shadows to be darker
read 1012 times
2/20/2012 1:13:07 PM (last edit: 2/20/2012 1:15:51 PM)
show user profile  Bolteon
what you're seeing there has nothing to do with shader setup; it's all in the lighting.

-Marko Mandaric

read 1006 times
2/20/2012 1:17:28 PM (last edit: 2/20/2012 1:17:28 PM)
show user profile  BishBashRoss
Why is your output amount set to 2? Also post up the bitmaps if possible. What does a 50 percent grey sphere look like next to both renders?


I believe they use a bunch of shader tricks to get the cartoony look it that game. Vaguely remember seeing a breakdown of sorts somewhere.

read 1005 times
2/20/2012 1:20:52 PM (last edit: 2/20/2012 1:23:17 PM)
show user profile  Undersky
Exclude him from your lights and create a separate light rig for him.
Demo reel, 2010
read 998 times
2/20/2012 1:25:22 PM (last edit: 2/20/2012 1:25:22 PM)
show user profile  Bolteon
of course the shader work plays a part in it but that just delineates whether it looks cartoony or realistic... outside of that it's good lighting.

one way or another, that's shadow/light play in action; not shader hackery.

-Marko Mandaric

read 996 times
2/20/2012 1:29:19 PM (last edit: 2/20/2012 1:29:19 PM)
show user profile  BishBashRoss
and the shader uses a falloff trick to create a fake rim light effect....

read 993 times
2/20/2012 1:37:31 PM (last edit: 2/20/2012 1:37:31 PM)
show user profile  xcloudx
Well i'll have a play with how you suggested using a separate light setup and see how it goes.
Here's the grey spheres you wanted to see and the textures its using.
I have a rim material, its just on a separate material that i combine together later. I included that too if you wanna see it, though i still need to tweak it a bit.

Also yeah wops, i changed that output back to 1 now.
read 989 times
2/20/2012 1:55:22 PM (last edit: 2/20/2012 1:57:37 PM)
show user profile  BishBashRoss
Strange. It looks a little like your material is reflective, are you sure that it's not?

read 982 times
2/20/2012 2:19:21 PM (last edit: 2/20/2012 2:19:21 PM)
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