Double sided uv mapping

[worldcrafter]

How can I uv map both sides of one polygon in the retopo room?

 

 

 

also how can i paint transparency from a material on a layer (although that isn't the main aim of the topic)

thanks

[worldcrafter]

I found transparency does work just not with the format i was using, png transparency works fine

[Carlosan]

i usually do transparency erasing layer0 -layer0 its used by internal 3DC operations-

[worldcrafter]

So is it not possible to uvmap both sides of a polygon in 3dcoat?

[Carlosan]

uvmap both sides ?

 

in which program is this possible ?

 

... do you mean

 

View

Backface culling

 

?

[worldcrafter]

No, i mean being able to paint a diffferent texture on each side of the polygon

[Carlosan]

in which program is this possible ?

 

never saw this before, sorry

[worldcrafter]

Sry, i jus thought it was possible - Ive never seen it done in modelling software, but have seen cloth and large leaves with different textures on each side in games.

"metasequoia" (modelling software) can make a one sided face, or double sided face - i thought, on this principle, it was possible, but I Havant found a way yet.

[Carlosan]

googling i found some info

http://forums.epicgames.com/archive/index.php/t-965936.html

 

Ghostdance

06-10-2013, 04:33 AM

Yes it is possible, There is a Material Function Called TwoSidedTexturing with separate inputs for side a and b...
But I would not advise using it as a way to avoid modeling the inside of the mouth, If that's what your thinking?
It would work well for other things. Like making a two sided flag for example.

 

madaboutagmes

06-12-2013, 12:02 PM

Yeah that is 2 sided mats, the same mat but on both sides. Duplicate the plane, and flip the normals, then assign the new texture to that plane. Attach planes and export. Then in UDK you should have 2 different mat tabs where you can assign a mat to each plane

 

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Alden

 

http://blender.stackexchange.com/questions/1032/uv-mapping-plane-single-side

It isn't possible to create a double sided UV map for a plane. The only thing you can do to get around it is duplicate the mesh and move it just behind the plane.


You can't texture both sides because of normals- a plane only has one normal on one side, and double sided normals are not possible. Blender is one of the few programs that chooses to render both sides of the normal. In another program, you would probably only be able to see one side in edit mode or a render.

Hope I helped
Alden

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http://blender.stackexchange.com/questions/1032/uv-mapping-plane-single-side

To the best of my knowledge, Blender does not have a built-in setting for one-sided UV mapping. However, you can trick Blender into thinking that your plane has two distinct sides, which you can then UV unwrap independently.

To do this, add a Solidify modifier, set the 'Thickness' value to 0, and hit 'Apply'. Now, when you go to UV unwrap, you will have two sides to map, one of which you can set to an image and leave the other blank by arranging them in the UV/Image Editor.