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translucent material...
show user profile  missy
Hiya boys (and ladies) long time no see..

I'm having to do an ear piece which is made from a soft translucent plastic. When I place the piece on the table, the wood grain behind is barley visible and distorted.

On mine although I sorta have the translucency I want but you can see the grain really clearly, I have tried to play with IOR but it doesn't seem to be making much difference. Any tips?


read 274 times
1/19/2012 3:03:07 PM (last edit: 1/19/2012 3:03:07 PM)
show user profile  BishBashRoss
You want to play with refraction glossiness I believe. An example picture would be helpful though.

read 270 times
1/19/2012 3:09:25 PM (last edit: 1/19/2012 3:09:25 PM)
show user profile  missy
Hiya Bish

I just tried that quickly and it seemed to remove my translucency

translucent rubbish

The one on the left is getting close to what I want... but see the woodgrain behind it, I don't want to see that. When I look at the real thing on the desk (that why I'm using this bg atm) I can see the colour of the wood but not the grain.


read 259 times
1/19/2012 3:55:24 PM (last edit: 1/19/2012 3:55:57 PM)
show user profile  Garp
The lower the glossiness, the blurrier the refraction.
If it makes the object look more opaque, try to increase the transparency (or lower the opacity, I dunno what material/renderer you're using).

read 253 times
1/19/2012 4:37:27 PM (last edit: 1/19/2012 4:37:27 PM)
show user profile  Mr_Stabby
the translucency parameter wont help you here as it doesn't actually make things translucent, just makes certain amount of light pass through and illuminate the other side of the object (and that object only) but yea up the refraction and lower the refraction glossiness until you get what you want, IOR for common plastics is anywhere between 1.2 to 2, most commonly 1.45 though. If you still dont get what you want you might have to use a physical SSS shader since these are made for the sort of thing you are describing if i understood you correctly (foggy refraction materials like jade)

read 246 times
1/19/2012 5:25:58 PM (last edit: 1/19/2012 5:30:11 PM)
show user profile  missy
Thank you for your help/answers. I will have another go later and let you know how I get on.

@mrstabby, yeah foggy but not hard like jade. You know those super bouncy ball well it sort of feels (and bounces) like that. There is a some give to the material, it needs to be supple as I imagine it would be quite painful to the ears if it was hard.


read 217 times
1/20/2012 11:49:28 AM (last edit: 1/20/2012 11:49:28 AM)
show user profile  Mr_Stabby
how hard it looks you can control with roughness(makes things look more porous like soft things often are), ior(generally the higher the IOR the more malleable the material) and reflection gloss(hard finishes are often very high gloss)

read 200 times
1/20/2012 3:55:03 PM (last edit: 1/20/2012 3:55:03 PM)
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