texturing 2 sides-different textures...

[leigh]

What program are you using? Check your software documentation for tips on this...

[Goodie2Shoes]

well, thats not an answer - with all the respect!
i don't think that answers like that are legal :D
heck, if everybody would do that - then cgtalk can go offline right now...

[leigh]

You misunderstand - the way in which you would apply a texture to both sides of a surface is different in different programs. Since you did not mention what software you are using, the only advice I could give is that you should read your manual.

At any rate, this is a RTM question... Forums aren't here for providing information that is already adequately covered in software manuals, but for sharing techniques and stuff that are not in manuals :)

[Flinch]

If you want a really basic answer to your question without a relation to any 3d-prog. then maybe this helps you:

Every 3d-object (poly,patch,nurbs or whatever...) has a normal. You want to texture e.g. a simple plane with different textures on both sides, so you have to find a way to determine which side you're "seeing". Therefore you can use the dot-product I.N (I is the camera ray direction vector and N your normal). If the result is > 0 you're watching at one side of the plane, if it's <=0 you're watching at the other side.
So now you just have to check your manual how you could do this in your favourite application.



:beer:

[Goodie2Shoes]

i have max 4.2
the thing is - i made a model of a box that can be opened - so there is a situation that you need to see the outside *AND* the inside at the same time [+2 different textures]...
i didn't find - how to texture 2 sides with 2 different textures...

[Goodie2Shoes]

i got it !!!
i needed to choose 2 sides material - in the material editor... thanks anyway!

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