How to create a bump,diffuse n specular maps?

[viral_zaveri]

Hi guys,
I want to know how to create a Map which includes bump map,diffuse map n specular maps which is being applied on model.Also whats the individual charaterstics of this map like why would we create bump or diffuse map n wht does it do? By creating this texture we get a real time feeling.I saw most of the people in the industary use such type of texture. I tried a lot but cant achive the thing, so plz anybody from the industary can explain the procedure for creating this 3maps..........

Regards,
viral

[Digitaldruid]

Diffuse colour refer's to the colour/texture of a illuminated object as seen by our eye. every object has a unique diffuse this is what makes every obeject unique.

Bump map refer's to the surface abberation/"roughness" of a object it is used to simulate surface deatails and depth Eg: smooth plastic or a shiny metallic object normally would not have a bump map but a objects like brushed metal ,bricks,rough wood,concrete etc would need a bump map to show the roughness/coarseness on the surface. most often "99%" of the time the bump map is a grey scale image which is either extracted from a diffuse or handpainted by the texture artist in photoshop.

specular map is a map which specifies how much light is refelcted off a object
at a specific point. this map is normally used for achieving a high level of control over the objects specular levels.

regarding the specifics of creating the respective maps will be covered in the next post today evening

[mayurcool123]

thanks Digitaldruid its so informative for me my query is wats the diff between diffuse and color map and y does not lambert material support specular map if i put it to face of a character
waiting ur reply

[mayurcool123]

couple of days back i have posted a model in game art section a low poly soldier model i applied lambert material to the model and painted a color map and bump map but how can i put a specular map some part of his face like chicks and forehead if uv got some time plz see that model


waiting for ur reply



regards
mayur

[satan]

my query is wats the diff between diffuse and color map

They are same. For certain copyright issues different 3d programs use different terms for the same feature. For example something called 'Jiggle' in Maya might be called 'Flex' for 3dsmax.

[mayurcool123]

thanks satan it cleared my long time doubt

[Digitaldruid]

this is the Diffuse map
<a href="http://img401.imageshack.us/my.php?image=handdeffuserb4.jpg" target="_blank"><img src="http://img401.imageshack.us/img401/2388/handdeffuserb4.th.jpg" border="0" alt="Free Image Hosting at www.ImageShack.us" /></a>
this is the Bump map
<a href="http://img502.imageshack.us/my.php?image=handbumpmm8.jpg" target="_blank"><img src="http://img502.imageshack.us/img502/1637/handbumpmm8.th.jpg" border="0" alt="Free Image Hosting at www.ImageShack.us" /></a>
this is the specular map
<a href="http://img299.imageshack.us/my.php?image=handreflectionqs4.jpg" target="_blank"><img src="http://img299.imageshack.us/img299/2127/handreflectionqs4.th.jpg" border="0" alt="Free Image Hosting at www.ImageShack.us" /></a>

click on thumbnails for enlarged version of image


note- do not confuse between specular map and reflection map. specular map is used to indicate the specular intensity over a object. I.E - its a gray scale image similar to the bump but reflection map is usually a "environment map" used to fake reflections

[mayurcool123]

so why does not lambert material support specular map
or if i wanna texture a human skin how to go about it

[Digitaldruid]

Descrpition of Lamber shading material - Creates a matte surface without specular highlights. Lambert is the default shading material.
source - maya help reference. in simple words u cant get a specular hilglights with lambertian material. uselful for simulating rough surfaces such as bricks,concrete. all this means u cant get specular highlights with lambert shader.

lambert shader can be sufficient for creating elementry skin material. besides good/realistic looking skin especially for games has to do more with finely painted texture maps rather than materials in maya. you can try creating a procedural skin texture in maya

[Digitaldruid]

sorry about my second post consecutive post. i wanted to create this post to clear the confusion regarding "colour" and "diffuse"
1) In Maya the "Colour panel" refers to the diffuse map
2) "Diffuse panel" refers to "Diffuse intensity" which could be controlled with a slider which affects the entire map or with a "Alpha map" which can selectively control the Diffuse level in a particular region the
3)In 3DS max there is no seperate panel to control "Diffuse intensity" but similar results can be achieved by using a mask map under the "Diffuse Colour" slot.

btw my apologies to the original topic poster for hijacking his topic.

@ viral
dude I'll try to mail u a p.s.d file containing all 3 maps on separate layers if u can gimme your e-mail mail address

[viral_zaveri]

Hi Digitaldruid,
Thanks for the info and some doubts have been cleared. Also like to know more how to create this 3maps and apply it to the model or charater. My email id is dazzling_viral@yahoo.com.
If u have any related link/tutorial then plz mail me and also if u know how to transfer high poly details to lowpoly models then do tell me.


Regards,
viral

[viral_zaveri]

Hi Digitaldruid,
I havent still received any of the PSD file via mail which u were going to send.........So plz do send the file a m waiting to know n learn more abt the mapping.........

Thanks,
Regards,
viral.

[Digitaldruid]

oh god i'am so sorry. i lost track of this thread i'll send you the file soon.

[mayurcool123]

hi viral

see if this can help you out i got today while surfing it maya related


link:http://www.bratz-designs.net/images/staff/7162tutorial%20copy.jpg

[viral_zaveri]

Hey thanks for the link (Mayurcool):) .........though i work on max, came to know lot more things........
Digitaldurid m waiting for the psd file which u are going to mail........plz mail it as u get time...........:)
There was 1query......after making a charater in high n low poly, whts the procedure to transfer high poly details to lowpoly.....


Thanks,
Regards,
Viral.....

[mayurcool123]

thanks viral:)
hi got one more cool link regarding your query right now cant find it on my pc will search and send you its really very good for normal mapping and has given specific to every software though i haven't read it properly but me too facing the problem while generating normal map i think i have to do some more googling to get enough info on this ...

[satan]

There was 1query......after making a charater in high n low poly, whts the procedure to transfer high poly details to lowpoly.....


Thanks,
Regards,
Viral.....

[NOTE:- Before proceeding, you must have your lowpoly model properly unwrapped so there's least amount of pixel stretching, and that it will be essential.]

- Have both your lowpoly and highpoly shown in the viewport.
- Select the lowpoly and hit '0' (zero).
- The RTT window will open.
- If you don't, learn how to use it from the 'Official User Reference' (not the tutorial).
- Just make sure you don't enable 'Automatic Unwrapping' inside it.
- Then manually adjust the cage so it bakes the normal information of the highpoly as precisely as possible.

This is just a hint towards the direction where you should head. I'm sorry that I don't have the time to make it all 'descriptive'. :)

[Digitaldruid]

dude i mailed you a complete scene with textures about 2 days back did you get it

[viral_zaveri]

Hey dude i havent received any of the mail.........i did checked out....
My emial id is viral_sharma@indiatimes.com or also can mail me at dazzling_viral@yahoo.com............
Could u solve my another query...........??? How could we transfer high poly details to polwpoly one........whts the procedure ......do u have any link for this where i can understand it more in detail or any tuts/links.......
:)

Viral........

[satan]

Check this out. Nice one:- http://www.3dtotal.com/team/Tutorials_3/making_of_arion/makin_of_arion01.asp