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3 Dimensional Chat / How do i do non-shiny normalmap?

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Cyborg ART
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Posted: 9th Oct 2008 20:35
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When i create a normalmap and use it in FPSC or Xnormal 3D Viewer the normalmap makes the model to look shiny. How do i do to make it matte?
I use the Xnormal Normalmap plugin for Photoshop.


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Jenqui
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Posted: 9th Oct 2008 21:35
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The normal map doesent store any reflection information, it only tells the 3d software how high, low, left, right, up, down etc. to render the faces of a model. Look into specutalor maps.

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Cyborg ART
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Posted: 9th Oct 2008 21:47
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Hmm, then how do I do a non reflective specular?


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AndrewT
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Posted: 9th Oct 2008 22:01
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Quote: "Hmm, then how do I do a non reflective specular?
"


Not totally sure what you're asking here, but I'm pretty sure FPSCX10 supports specular maps as well as normal maps. Specular maps are greyscale images that store the specularity, or "shinyness", of your model. Bright parts of the specular map make that part of the model shinier, and vice versa.

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Irradic
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Posted: 10th Oct 2008 05:56 Edited at: 10th Oct 2008 05:58
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I think I understand your problem. Do the models look like they are wet ? I find that to be a quiet annoying side effect of some normal map shaders. Changing the spec map won't help, some versions of normalmap shaders don't even have separate spec maps.
If that's the case and the models indeed look shiny/wet, let me know...I'll post you a matte looking normalmap shader.

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dark coder
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Posted: 10th Oct 2008 09:11
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Quote: "Changing the spec map won't help"


Of course it will, in all shaders I've seen the specular term is merely multiplied by the specular map, thus if you make the specular map have a value of 0 in every pixel there will be no visible specular, only normal mapping. I dunno about FPSC but in my shaders I always put the specular map in the alpha channel of the normal map.

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Irradic
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Posted: 10th Oct 2008 12:45 Edited at: 10th Oct 2008 12:46
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Quote: "Of course it will"

I guess it all comes down to the shader code. I tested shaders that still look like wet plastic even after using a almost black specular.
Adding the real spec map would just make it look worse.
Anyway I somehow missed that the discussion was about the FPSC shader.
I never used FPSC, I'm not sure if the normalmap shader that I have here would even work inside FPSC.

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Cyborg ART
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Posted: 10th Oct 2008 23:37
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Tried with black speculars, but it didnt change anything.


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Jenqui
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Posted: 11th Oct 2008 01:36
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Sorry I couldent help, dont use FPSC all my modeling is used in darkbasic where I can control how the shaders work, but look in to crazybump a program I use to create normal, spec, occlusion, and displacement maps works great.

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Deathead
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Posted: 11th Oct 2008 02:00
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Can I see the texture flats? Of your Specular, Ambient, Normal and Diffuse.


"Your greatest teacher is your harshest critic"-Butterfingers
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Cyborg ART
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Posted: 11th Oct 2008 11:13
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Diffuse:


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Cyborg ART
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Posted: 11th Oct 2008 11:16
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and Normal, it appeares that it turned out grey when exported into .dds
The specular is juts a 0,0,0 black with a 0,0,0 alfa channel.


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Jenqui
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Posted: 11th Oct 2008 13:05
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You dont use a black and white .dds do you? I hope what you export to is in color or it wont work as a normal map

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Aertic
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Posted: 11th Oct 2008 17:24
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You're doing the normal map wrong, read this tutorial, its about making them NON-ULTRA-SHINY ingames, the tut is mainly for source engine but it still works; http://www.fpsbanana.com/tuts/4501
Also its bad in grammer and ect, but its still okay.
Oh there's this one, using gimp to make normal maps is much effective then the NVidia plugin for photoshop; http://www.fpsbanana.com/tuts/6641


"Your greatest teacher is your harshest critic"-'Butterfingers'
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