[michaelplogue]

Man! I've been playing with this all evening, and I'm having a heck of a time getting SSS to work. I guess I'm going to have to actually read the dang manual (horrors! ). experimentation just dosen't seem to be getting me anywhere........

[Mihai]

When you say mix your sss bsdf with a dielectric im not sure exactly what you mean. I thought to have sss you have to have transmittance on which makes it a dielectric. Does one layer just need to be set up like you would do glass, and make this the lower weightmap then make a sss bsdf with transmittance turned on with the higher weightmap.

Perhaps transmittance=dielectric is wrong, I'm not sure, but in essence the typical dielectric material you make in Maxwell such as glass, has a surface roughness control, which scatter the rays at the surface, while the sss component controls the scattering inside the volume. So in this case with the orange juice, you would need both of these since it's pretty transparent but there is some scattering going on in the volume. I think you could achieve most of the look of orange juice just with one dielectric type bsdf, set to orange and pretty low transmittance, and just add another bsdf with sss to complete the look. So the orange dielectric would be dominant.

[Thomas An.]

So in this case with the orange juice, you would need both of these since it's pretty transparent but there is some scattering going on in the volume. I think you could achieve most of the look of orange juice just with one dielectric type bsdf, set to orange and pretty low transmittance, and just add another bsdf with sss to complete the look. So the orange dielectric would be dominant.

Orange juice does not seem to have a rough surface to me at all. (At least not the kind of OJ that I usually get).

Orange juice is basically a liquid with suspended solids. Everything happens beneath the surface, while the surface itself is a pure (glaze); a liquid.

My feeling is that proper OJ would need:
a) Either a more advanced implementation of SSS (than what Maxwell currently has), or..
b) True stacked layer capability so that we can indicate a few millimeters of clear liquid in the perimeter before the murkiness begins.

[Eric Lagman]

Maybe just change the colors of this material http://mxmgallery.maxwellrender.com/sea ... oconut#705

or this one http://mxmgallery.maxwellrender.com/sea ... 519&mode=0

I was planning on starting another thread to try and get a candle wax material that looks good also. Creating a material that glows at the top of the candle where the flame is but then dissapates is almost impossible. For a feature that has only 2 settings getting a sss material to look right is one of the biggest challenges of a material in maxwell I have come across.

[Boris Ulzibat]

Orange juice does not seem to have a rough surface to me at all. (At least not the kind of OJ that I usually get).

Orange juice is basically a liquid with suspended solids. Everything happens beneath the surface, while the surface itself is a pure (glaze); a liquid.

My feeling is that proper OJ would need:
a) Either a more advanced implementation of SSS (than what Maxwell currently has), or..
b) True stacked layer capability so that we can indicate a few millimeters of clear liquid in the perimeter before the murkiness begins.

That's what i think too! The proper OJ can also be made if there is a true object's volume properties simulation - variable density, like pulp in orange juice, or dust in air, or mud in water.

[michaelplogue]

I agree with Thomas. With my experimentation, the only way to get a good SSS is to have a high roughness on the material - which eliminates the 'gloss' you would have with a liquid like juice - which as he says is really just water with solid particles in suspension..

I got something close by putting an SSS material on the main object. I then made a copy of the object and used the 3ds Max shell modifier to make it evenly larger than the 'juice' object. With this larger object, I put a clear glossy material in order to give it some shine.

It seems to me that it's impossible to make a single, "stand alone" glossy SSS material with the existing system.

[Eric Lagman]

I agree with Thomas. With my experimentation, the only way to get a good SSS is to have a high roughness on the material - which eliminates the 'gloss' you would have with a liquid like juice - which as he says is really just water with solid particles in suspension..

I got something close by putting an SSS material on the main object. I then made a copy of the object and used the 3ds Max shell modifier to make it evenly larger than the 'juice' object. With this larger object, I put a clear glossy material in order to give it some shine.

It seems to me that it's impossible to make a single, "stand alone" glossy SSS material with the existing system.

I have also just got around to messing with sss the past few days, and it is very difficult to get it to work right. I have been trying all day to get a candle that looks right and to no avail. I have done tons of searches and found a lot of other people struggling to achieve the desired results with sss and 1.1 There seems to be a lot of nice results with past versions though.

I did see this post scroll down to bottom and see sandys result. http://www.maxwellrender.com/forum/view ... 6&start=15 If that stature were an orange yellow instead of a red it might look like orange juice. This result may not pan out though since most of the time you dont have the sun right behind your sss object. I would be curious to see those same settings he has in an enviornment with emitters.

[Mihai]

One test:



It's a mix of a regular dielectric with a lambert sss, and another lambert with no sss just to boost the yellow a bit. Material is in additive mode. Gave a better effect here.

[glypticmax]

Closer, but I wouldn't drink it.
We Native Floridians are kinda picky about our orange juice.
You guys really picked a hard one here.
I'm following this with great interest and support for your efforts.
Good luck with it.

[Eric Lagman]

Wow that looks really good. Looks like some of the image searches for orange juice to me. Certain pictures had more yellow in them, and the orange juice I drink looks more yellow than orange, but this can be fixed by adjusting the colors. Right now it looks more like tang.

[michaelplogue]

One test:

It's a mix of a regular dielectric with a lambert sss, and another lambert with no sss just to boost the yellow a bit. Material is in additive mode. Gave a better effect here.

Hey! You've got a pretty good simulation of Tang there (the breakfast of astronauts!).

How does it appear when looking at it directly (not through the glass). Were you able to get a nice gloss on it?

[Stephen]

Boris, if you post the file it would help in checking the material.

I have something close I think It looks good, but I would like to see how it looks on the pouring portion of your model before I serve it up.

I think Mihai has nailed a mango drink.

[mverta]

I'm assuming you guys have tried adding a second layer in Additive mode, with low roughness and weight for the missing gloss...?

_Mike

[Boris Ulzibat]

http://www.bambr.net/renders/orange.mxs

Here is the file!


I have another problem with it:
I understood how to make a liquid in glass when the liquid is still, but when it is dynamic, this way (with an infinitesmall gap) doesn't work... or i don't know how it works here...

[Stephen]

http://www.bambr.net/renders/orange.mxs

Here is the file!


I have another problem with it:
I understood how to make a liquid in glass when the liquid is still, but when it is dynamic, this way (with an infinitesmall gap) doesn't work... or i don't know how it works here...

It's giving me access denied. I don't have permission