Making Crystal , help

ayoub44

hi guys ,

in last time i was try to make a crystal model
but it's too difficult ... i search for some tuto :

[ame]http://www.youtube.com/watch?v=P7SHCdSd0aM[/ame]

but this not wath i want .. any help to make a good crystal like this one

http://www.ripten.com/wp-content/uploads/2009/03/ffcc-site-launch.jpg

thanks

PogoP

I would take a simple base mesh (perhaps even a box) into Zbrush and use the planar brushes to make that.

In Max, I'm not really too sure. Or do you mean in terms of shader work?

ayoub44

@Pogop : good way to make , i'm going to try it thanks man

greevar

Actually, you could take a geosphere in max and shape it to your desired general form. Then you could use the optimize modifier to get the random faceted look.

Edit:

I just did this in about a minute:

ayoub44

@greevar : smart way to use , so i try to make a one .. with texture too



texture is just some color , noise , some gradient to give that reflect effect

need some help with texture .. any one can help help

SpeCter

These thick white edges look wrong . Chrystals have sharp thin edges.
And crystals should not be "noisy".
And you should use a specular map, i really helps to get the lighting right.

equil

your diffuse isn't really helping. you should be fine with just a cubemap and some specular highlights.

here's a quick test. All that's happening is that I'm doing a cubemap lookup on the backfaces (the inside), then again on the frontfaces, and finally a specular highlight. there's some color and usually I guess you'd add glow on top of that too.

throttlekitty

This might end up being too complicated, but similar to how many people create rocks. I once took a base mesh, and applied a semi noisy image as a displacement map, and baked that out to polygons. This gave me a lot of extra polygons in strange places that I then start collapsing semi-randomly until I got to a point where I could start shaping things better. Working this way gave me lots of interesting shapes from the start that I probably wouldn't have originally made by hand.

ayoub44

@specter : thanks for the crits , i'm going to fix it thanks again
@equil : awesome , but i try to make it , but didn't work with me ... did you use just metalbump for this one , ^^ can you explaine how you make it ?
@throttlekitty : ya man , this is a good way , thanks