I found index of refraction while playing around inside the materials but it doesn't seem to work at all. I hooked up an index of refraction to the refraction value and turned it up, no use.

Is there any way to get an ior (index of refraction) in Poser (im in 6). Why have the value there if its not going to do anything??

any material experts out there, let me know!

I see now, sorry to waist space in the forum here. i was putting it in value instead of color. I would think you would want an index value in the value slot but i guess i was wrong.

Thanks

From what I understand from reading Bagginsbill, you have to hook up a refract node to the refraction input and make sure raytrace is on...

Here is a list of common refraction indexes.... http://www.robinwood.com/Catalog/Technical/Gen3DTuts/Gen3DPages/RefractionIndexList.html

If this isn't correct, hopefully someone will correct me  :-)

Sweet list jefflnlkpt2...thanks for sharing, copied and saved!

Quote - I found index of refraction while playing around inside the materials but it doesn't seem to work at all. I hooked up an index of refraction to the refraction value and turned it up, no use.

Is there any way to get an ior (index of refraction) in Poser (im in 6). Why have the value there if its not going to do anything??

any material experts out there, let me know!

The phrase "I hooked up a/an" should be followed by a node type. You followed it with "index of refraction". There is no such node. I don't know what you really mean.

There are a couple nodes that implement refraction (Refract and Fresnel) and they have an IOR parameter in them. The node is not an IOR, it is the implementation of Refraction.

The Poser surface does not contain any refraction or reflection algorithms. The channels with such names are just outputs where you're supposed to plug in nodes that do those types of things.

That explains why I see what i see BB. Thank you for the clairification. The implementation of refract is what i am seeing in the refract node. I think it can pass for index for now. Unless, of course you can show me a setup that you use for glass or crystal objects (would be much appreciated). I'm new to the wonderful world of materials room. I usually just exported poser figures to maya.

Here is the set up I used........
I don't know the mat room like you do (i'm not sure anybody does)......Will Poser 8 have a real index of r (since the rendering has been improved)

Quote - The implementation of refract is what i am seeing in the refract node. I think it can pass for index for now.
......Will Poser 8 have a real index of r (since the rendering has been improved)

Sorry to dive in here, but I'm trying hard to understand what the issue is.

Poser implements refraction and the Fresnel effect using, respectively, the Refract node and the Fresnel node. To correctly calculate these effects for any material, Poser needs to know the index of refraction for the material, so you have to enter this value on whichever node you are using. It is a real index of refraction... as real as it gets in this 3D world.

What am I missing? :O)

Thats what I was thinking ( I started the post cause i put the ior in the wrong place to begin with :P ), but I take BB's word as gospel when it comes to the materials room. But, it looks like it's refractinf to me. Maybe overly so. I think the values are alittle off from real world values, but again, what do I know. The shpere in the picture has a value of 1.15.... it looks to me like glass. A value of 1.3 really was overkill. maybe its just because it's a sphere and not another obj.

I don't know the diff. index vs implement....... a rose by any other name....

Okay.... phionix, I think this is just a misunderstanding of language, and maybe a misunderstanding of what the Refract node actually does. I will try to clarify what I am saying...

The phrase "Poser implements refraction" means that Poser supports refraction; in other words, it is able to make a surface appear refractive.

The word "index" means a numerical value.

So it's meaningless to compare the two words "implement" and "index".

Now to the Refract node:-

Your sphere is refracting, because you are using a Refract node. The output of the Refract node is the actual appearance (in colours) of the refracted light coming from the material, based on the Index of Refraction that you have specified in the node. This colour value has to be added to the Poser_Surface node using one of the Color input channels. (It does not have to be plugged into the Refraction_Color channel, it could equally go into the Alternate_Diffuse channel, for example).

So your sphere is refracting just like a solid glass sphere. Or a very powerful magnifying glass. And that is exactly what it looks like, to me.

Quote -

There are a couple nodes that implement refraction (Refract and Fresnel) and they have an IOR parameter in them. The node is not an IOR, it is the implementation of Refraction.

quote]

I guess i misunderstood BB's reply. Now that I read it again i understand.

Thanks u guys!!