Rendering in VRay

[mister3d]

Everything seems to be correct. I'm not sure what you mean by "depth", but your water geometry must be a little bit inside the geometry of your bowl(in contrast to mental ray, where it's a bit more complex). Check the scale of the scene. Also check in renderer - global switches if your raytracing depth is high enough.

[shivboy]

Dear mister3d,

Thanks a lot for your response. I am posting this another image which should help explain what I find lacking in the render.

If you notice, the pink liquid in the glass container seems as if it is in very less quantity. (Notice the black bar showing shallowness of the pink liquid)

If you look at the mesh in the 3ds max file, after rendering the depth of the liquid should be about the height of the blue bar, as shown in the image.

Lastly, if you notice the white reflection (encircled in green) it should allow the pink liquid to show there which would give a better "water in a glass" effect.

http://forums.cgsociety.org/attachment.php?attachmentid=122477&stc=1

[Myliobatidae]

Try lowering your refraction IOR levels...

[mister3d]

Maybe increase your max depth in your refraction. But this seems strange, very simple task. Maybe something wrong with your geometry. Or the size of the bowl is too big. If you could post the mesh of the bowl and liquid, it would be easier.

[shivboy]

here's the mesh:

http://forums.cgsociety.org/attachment.php?attachmentid=122569&stc=1

[FranzFerd]

As someone already mentionned, try lowering the IOR. For instance, the IOR of glass is around 1,5, around the same as the IOR of oil. It should give you better results. ;)

[shivboy]

Guys,

It's still not working. That unnatural look of white reflection is still there. What I am understanding here is that the inner wall of the container is reflecting the white floor underneath. Is there anything we could do to stop that?

[phix314]

Do you have the glass material to "reflect on both sides"?

[choerte]

You could have some overlapping issues in the geometry.
Someone mentioned that the geometry of the water should go inside the geometry of the bowl - I believe it should be the opposite, there should be some minimum space left between the two models. Because the glass and oil are refractive, the problem of overlapping might be seen (I could be wrong, but I can't see enough in the wireframe you posted).

I was doing a similar thing not so long ago and it worked fine. Here are the images, hope it helps...

http://shrani.si/f/1k/3p/16S0I9Dr/oliveoil.jpg

http://shrani.si/f/6/A4/48zGWvXp/oliveoilmat.jpg

[mister3d]

Choerte, if you look at a real-life example of such a bowl or a glass of water, you will notice that you don't have a visual distinction between the water and the glass where it touches with. When you make your geometry a little inside in vray it works just fine. Moreover you can get high render times as a side effect if you place your geometry with little space inward.

[choerte]

Yep, I agree that in real life the water and the container are not separated, but I was just saying that in this case, that could be the issue.

[shivboy]

hi,

sorry, i was out of town coz of some work, so couldnt respond. i tried the suggestion. i scaled it down. but in vain.

[Daggie]

change the liquid material's reflection exit color to black, and also the refraction exit color to black.
and see what happens.

[shivboy]

Hi Daggie,

Tried doing that... almost perfect side view is below:

http://forums.cgsociety.org/attachment.php?attachmentid=123693&stc=1

What do you think is the problem? Is it because my container and fluid, both, are not perfectly round?

Settings are what I have posted earlier.

Peace,

Shivboy

[CompanionCube]

looks like the problem is the index of refraction? not sure , just a guess

hope that helps :)

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