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# 1 24-08-2004 , 12:39 PM
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subDivs get transparent when converted from NURBS

Hi

This problem, I don't understand. This is what I do:

1. I create a NURBS plane (or any other NURBS object)

2. I convert it to a subDiv surface

3. I assign a blinn material to it

4. I connect the color of the blin to a tif file

the surface now looks like it's 50% transparent. But it's not when rendered. Why does this happen? If I just create a subDiv plane and attach the blinnmaterial, there is no problems.

This is what I get (the converted subDiv to the right):
user added image


: ) Jakob

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# 2 24-08-2004 , 02:32 PM
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Ummm.... Maybe you should check the convertion settings.


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# 3 24-08-2004 , 10:47 PM
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it could have shading or texture info in the coverstion. Re-asign a shader and that might fix it.

# 4 25-08-2004 , 06:25 AM
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hi

I've already checked the settings, can't find any shading options there.

I've also reasigned the texture, but that doesn't work. If I asign aplain lambert, then the problem isn't there, but if I put on a texture with a image mapped to it's color.... it gets transparent.

wierd!

Thanks for replying anyway.


: ) Jakob

<i>It's the "hard", that makes it great! - Tom Hanks</i>
# 5 25-08-2004 , 06:28 AM
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... again, it can't be a shading option, since it doesn't show on the render. Right?


: ) Jakob

<i>It's the "hard", that makes it great! - Tom Hanks</i>
# 6 25-08-2004 , 07:00 AM
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it's the uvs. Make sure that it has uvs assigned to it or it will be transparent.

Alan


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# 7 25-08-2004 , 09:15 AM
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Thanks Alan!

That's it. It doesn't have UV's... How can it not have UV's? I thought UV's came along as a nescesary thing, just like vertex. How can I apply UV's? done it with the automatic mapping, but that not always be what you need.


: ) Jakob

<i>It's the "hard", that makes it great! - Tom Hanks</i>
# 8 25-08-2004 , 10:34 AM
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Nurbs do not have a UV map to convert.

# 9 25-08-2004 , 11:01 AM
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true but when converted to subd they need uvs user added image


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