Why do you "see through" cloth?

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Why do you "see through" cloth? // Tech Forum

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Post by spyfrog // Aug 6, 2008, 12:08am

spyfrog
Total Posts: 181
I have played a bit with the built in cloth in TS 7.6 and I am confused.

I simply let a cloth enabled plane fall over one simple cube.

The plane is quad divided several times and the cube isn't modified at all.


The plane wraps beautiful around the cube. Look how the beautiful(?) fish scale plane looks. But, what is this small red parts? It seams like the cube shines throught the plane... can you stop that from happening? I might be a bit hard to see in this image but it is more visible in the realtime render and in other images. Look at the closest right corner and you see the red shine through.

It looks strange, almost like the cloth is extremly thin. I have tried to increase the thikness in the cloth settings and even used a cube instead of a plane but I still see the cube throught.


Suggestions?

Post by Georg // Aug 6, 2008, 12:29am

Georg
Total Posts: 270
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have you tried to change the facetting of your staining to smooth. It may literally iron out these effects, I had similar observations.

Post by TomG // Aug 6, 2008, 4:15am

TomG
Total Posts: 3397
You could increase the density of the polys in the cloth, increase the accuracy of the cloth calculations, change a few other settings in cloth too for how bendable it is etc. Those all might help, especially the first two.


If you want a final scene, you could "bake" the cloth into position then adjust it with a few manual tweaks too using things like soft select to avoid introducing any harsh sharp-edged poly edits.


HTH!

Tom

Post by trueBlue // Aug 6, 2008, 6:23am

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Total Posts: 1761
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The plane wraps beautiful around the cube. Look how the beautiful(?) fish scale plane looks.
In the Mesh Editor Settings enable "Preserve Unwrap" might help.

Post by spyfrog // Aug 6, 2008, 11:09am

spyfrog
Total Posts: 181
have you tried to change the facetting of your staining to smooth. It may literally iron out these effects, I had similar observations.


I can't find where to change that setting - in previous versions this was easy to do with the material toolbar but now I can't find the setting - where is it? :rolleyes:

Post by W!ZARD // Aug 6, 2008, 11:55am

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Total Posts: 2603
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It's in the default tool bar along with all the other material related icons - UV, Inspect, ME and so on. Took me a while to find it too but it's actually in quite a logical place!

Post by spyfrog // Aug 6, 2008, 12:06pm

spyfrog
Total Posts: 181
It's in the default tool bar along with all the other material related icons - UV, Inspect, ME and so on. Took me a while to find it too but it's actually in quite a logical place!


Thank you W!zard, I found it.

However, I still have the same problem... I guess the best way to fix it is to simply move the underlaying object down a few pixels after the animation is finished and the object have taken the form you want it to have - then it can't shine through.


Now my only question is how to make an object from the finished animation of the cloth? :D

Post by Jack Edwards // Aug 7, 2008, 1:11am

Jack Edwards
Total Posts: 4062
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Check the "continue" check box on the physics panel in the LE. Then select and flatten the cloth object. That will convert it to an editable mesh.

Post by Johny // Aug 7, 2008, 5:06am

Johny
Total Posts: 672
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With litle trick on LE, we can solve this "see through cloth" problem. And we can get desire result as shown on below video. :)

(ops cant attach wmv five now :()

Post by Johny // Aug 7, 2008, 5:53am

Johny
Total Posts: 672
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Duh, I think my isp doing dirty business by slow down my connection. almost two hours of upload tried with error. :(

here the video post with other isp. succes on one tried :)

Post by trueBlue // Aug 7, 2008, 7:11am

trueBlue
Total Posts: 1761
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Thanks Johny! :)
So what is the trick?

Post by spyfrog // Aug 7, 2008, 11:37am

spyfrog
Total Posts: 181
Duh, I think my isp doing dirty business by slow down my connection. almost two hours of upload tried with error. :(



here the video post with other isp. succes on one tried :)


This looks good and shows no bleeding of the underlying object.

But you don't tell us what the trick is? ;)

Post by Johny // Aug 8, 2008, 4:07am

Johny
Total Posts: 672
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Your're welcome trueBlue. But I think I didn't post the trick yesterday, because I want to test if others member who watch the before video can see something odd or not on attached video. :D
Spyfrog, here the very simple trick I talked about. ;)

Here I also attach 100% D3D transparent Material for beginer user. (import it into your D3DMaterial library - click & drop at your obj for apply this material)
OPS!!! Norm not allow us to attach RsMat File??? (so please find it inside Zip file).

PS: You can make your transparent obj appear again by apply other D3DMaterial to it. Or go inside LE of the obj, inside material list, then change 'AlphaTest' to disable or change 'AlphaTestValue' to zero if its hard to apply other materials to invisible obj. :D

HTH!
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