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Old 04-07-2013, 03:27 PM   #1
maikukai
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Creating normal maps, help.

It is possible to create normal maps in C4D. I've got the texture I've made applied to my model, now what? If anyone could point me to a tutorial or some documentation I'd really appreciate it.
 
Old 04-07-2013, 05:57 PM   #2
AdamT
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Quote:
Originally Posted by maikukai
It is possible to create normal maps in C4D. I've got the texture I've made applied to my model, now what? If anyone could point me to a tutorial or some documentation I'd really appreciate it.


Need a little more explanation. What kind of texture have you created? Are you trying to turn displacement mapping into a normal map? Using the sculpt tool or a texture created somewhere else?
 
Old 04-07-2013, 07:50 PM   #3
maikukai
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Sorry, I guess that was kind of vague. I guess my ultimate question is, what's the best way to create a normal map from an image I created in photoshop? The image wraps around a model I created. (I'm am skinning a character for a video game.)

Can any of it be done in Cinema4d/BodyPaint? I'm a veteran C4D used but haven't used Bodypaint before and didn't know if it had this functionality. I'm on a Mac, so normal mapping apps are pretty scarce. I have a simple 2D normal map creator but it's a bit convoluted and doesn't produce the best results. And from what I understand, making normal maps in a 2D app like Photoshop isn't a true normal map. Is that correct? Anyway, any information you could provide would be greatly appreciated.

Last edited by maikukai : 04-07-2013 at 08:21 PM.
 
Old 04-07-2013, 08:11 PM   #4
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If I understand your question, just put your Grayscale heightmap (bump map) into a Normalizer Shader in the Normal material channel.
Then you can bake that texture out.
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Old 04-07-2013, 09:07 PM   #5
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Couple of Mac options for you, Crazy Bump is a free beta at the moment:

http://www.crazybump.com
http://www.allegorithmic.com/products/b2m/overview
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Old 04-07-2013, 09:21 PM   #6
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Quote:
Originally Posted by LoopCorp
Couple of Mac options for you, Crazy Bump is a free beta at the moment:

http://www.crazybump.com
http://www.allegorithmic.com/products/b2m/overview

That's what the normalizer shader does.
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Old 04-07-2013, 09:23 PM   #7
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I've been using crazybump. Great piece of software. I was just wondering if I could do this in Cinema 4D. Noseman's suggestion pointed me in the right direction but I need to read up on baking textures. I've got everything set up like he suggested but when I bake, the data from the lights isn't showing up.
 
Old 04-07-2013, 10:01 PM   #8
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Originally Posted by fluffouille
That's what the normalizer shader does.


But they do a lot more besides, just trying to help
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Old 04-07-2013, 10:37 PM   #9
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Yes, that's true. Not trying to put your post down, sorry if it came across that way.
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Old 04-08-2013, 12:40 AM   #10
maikukai
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So is there any advantage in creating a normal maps in a 3D app like C4D vs. a 2D app like Crazy Bump? (Edit: A little off topic but I found this helpful http://iamsparky.wordpress.com/crazybump/ )

Last edited by maikukai : 04-08-2013 at 12:57 AM.
 
Old 04-08-2013, 08:26 AM   #11
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height2normal

http://www.biomekk.com/?itm=13

height2normal is the tool for your job=)
 
Old 04-08-2013, 12:10 PM   #12
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Quote:
Originally Posted by maikukai
So is there any advantage in creating a normal maps in a 3D app like C4D vs. a 2D app like Crazy Bump?


I Think it depends from where the normal its being generated. The new sculpting system p.e. can bake normal map based on real geometry deformation, while a 2D package (or a shader) will always try to guess the geometry based on color, brightness and contrast of the pixels. That's my 2 cent
For mac there is also PixPlant: http://www.pixplant.com/
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Old 04-28-2013, 08:09 PM   #13
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Okay. This thread really needed a stupid question, so I'm going to be the one to offer it:
What are the advantages of using normal maps, as opposed to bump maps? Neither "actually" deform geometry, like a displacement map with SPD enabled. So, what are the advantages?
 
Old 04-28-2013, 09:22 PM   #14
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Displacement in the mesh caused by normal maps will interact with lighting, bump won't, for one thing.

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Old 04-28-2013, 11:28 PM   #15
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Thanks, Brian.
I just tried a test on a project I'm working on, that has a simple hero object with a bump map. I swapped out the bump, for a normal map, and I must say that the result is clearly better! There are no lights in the scene - only reflections - and it looks substantially more "lifelike".
 
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