displacement mapping!?

[OXIGEN]

if your anwear is 'serch the forum' i'v done than and didnt find what i need because i am new
Thanks

[OXIGEN]

I am working by this tutorial: http://home.nc.rr.com/craigvance/Tutorial.htm
And after no.13 i dont understand

[bravmm]

maybe missed this one, displacement is fairly simple:
http://forums.cgsociety.org/showthread.php?t=225726&highlight=displacement

hope this helps,

rob

[OXIGEN]

:bounce::bounce::bounce::bounce:Thanks a lot!
I have to make a model with texture for today! First displacement map and then the texture:)
Anyone have tips or tutorial for how to make human skin? And Zbrush tut will be great

thanks thanks thanks thanks thanks thanks thanks thanks thanks thanks thanks thanks

[bt3d]

1. Create your object
2. give your object a material (phong for example)
3. define a useful texture projection (maybe finetune it with the texture editor)
4. go into the rendertree, get a texture/image node and plug it into the displacement slot of the material (since the displacement port uses float information a color2scalar conversion is added automatic)
5. fine tune the geometry approximation / displacement settings of your object

In the rendertree you can add a Change_Range node (can be found under Nodes/math) between the color2scalar and the displacement slot to adjust the displacement. By default XSI calculates the displacement by an image as 0 for black and 1 for white. By using the Change_range node you can change this range of 0 to 1 to for example -0,5 to 0,5 (so that black is -0,5, midgrey is 0 and white is 0,5). Don't forget to take a closer look at the geometry approximation settings of your object, since this is the place where you setup the maximum displacement amount (max. displ.) and 'quality' (parametric, LDA, fine).
Hope this helps a little bit

[bt3d]

ups, to late, seems you already have the answers you need :)

[CiaranM]

Here's my workflow:
http://forums.cgsociety.org/showthread.php?t=256023

Hope it helps!

[OXIGEN]

bt3d; CiaranM- Thanks thanks.... I start to love this forum
CiaranM-Well I undertand 70% of your explenation. Any way i can contact you by mail or irc or msn because I realy need your help.
I am going on some curses for Softimage amd now we are having a modeling competiton. I am making a caracter (some kind of barbarian) that is half done. So i need to make displacement map fast because tomorow i need to be done! So if you or anyone else can help me today to make it!? Cous I realy need your help now. I know that thisdays I was a little boaring but It was because I was modeling my caracter and it is all because I am a little sceared. I am realy sorry. Today I will be on-line all day after 10-11 a.m. so if there is anyone who would like to help me please let me know. Thanks a lot

Regards

P.S. My first question: Assign explicit UVs. Set target resolution to 4096 with appropriate spacing between UV islands e.g. 5-10. How to do this?
Sorry I am not good at english and I am realy very new in 3D.

[CiaranM]

I'd love to help, but I'm affraid I don't have XSI and an internet connection at the same time, so I have to work from memory. I con remember though that there is a very helpful section in the XSI manual about rendermapping. There, it is explained in quite some detail how to create unique UVs on a model. You can ignore most of the discussion about rendermapping as it is not relevant right now, but pay attention to the bit about UV creation.

Sorry I can't be of more help.

[OXIGEN]

Thanks antway;)
I have finished my caracter without displacementmap:)
Tommorow i will send you what I have done for the competition (and take some time to wote for me ;) )
Thanks and see you

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