"Coke-Bottle" Glasses
pbateman28
Posts: 22
Just a small accessory item that could be fun. A set of THICK eye glasses that distort the wearers eyes like a magnifying glass.
I trired playing with the material settings, but my understanding is that the shape needs to be correct to work properly.
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The problem is the lack of volumetric rendering, I believe. I don't think that IRAY has the capability to create a glass like materials that distorts things like a lens would. (I could be wrong, I am no expert.
A work around would be to get glasses and then make the eyes literally bigger with a morph. :)
Does DS have no way to change the refraction index?
You'd need to apply a dformer to the lens and change the shape/thickness of it. Once you do that, refraction works fine.
You might find this thread of interest: How to make refractive glasses in Iray?
Uh, that's not remotely true. Iray totally has volumetric rendering. You just need to define a realistic shape, then you can set how refractive it is (weight) and what IOR it has. You can also color the volume in various ways, including a flat tint (refraction color), SSS, and transmission color (which increases intensity from edge to a certain depth into the substance).
What Iray lacks is a way to make nonlinear or adjustable volume effects, to get 'wispy edges' that other renderers might have.
It's actually FAR easier to make, say, a murky milky/silty fluid in Iray than it is in 3DL.
Since you're here Oso3D, do you know if Iray does volumetric distortion (I don't know what the correct term is, but those heat vapors you see on a distant road or coming out of a jet engine)? I've tried everything I can think of with Iray, but haven't had any luck.
Nothing obvious, but I wonder ... normally IOR doesn't take a map but my OMS1 shader sets ior on two layers.
I need to fix something in OMS1 soon so once I poke at it I can try this.
This is based on my assumption that what you'd want is a graduation of ior over the surface.
Yes, I just want a small area where there's some distortion and it fades out gradually. Here's a render where I faked it using a disc in front of the camera, but I'd like the real thing if possible. Maybe I'll give it another try one of these days.
Ok, here's a test that worked pretty well. One layer is basically invisible (IOR 1), the other uses Refraction Roughness to create the blurring effect (very handy for thin refractive surfaces)
First shows where the effect is, second is all purty like.
(A simple plane with OMS1 shader on it)
(Placed plant behind so you can see the effect better)
Yeah, that looks good. I think mine is pretty much the same thing, but I used discs and parented them to the camera so I could move it where I need it. It's a pain to set up, but I think it makes things more realistic without having to do post work.
This is the setup I used for the pic above.
Try the Felton puppet glasses. You just need to hide the black dots in the center. Otherwise they look just like this, and they distort the eyes big time. Especially the closer they are to the eyes, as in Z Trans -1.
https://www.daz3d.com/felton-the-puppet-for-genesis-8-male
The glasses were designed for the puppet obviously, so you may have to change the scale a bit if you fit them to a Gen 8 Character.