Translucent not working?

[Dman3d]

version .03g

Attempting to use translucence and it only seems to work on planar objects, nothing with volume.
Usually get black when using a cube or the like.

Anyone else having the same issue?

Started when playing around with the ice material idea.

[egz]

transulcency works fine in the G build.

The posted icecube scene was created with an older version, before the material changes, so you will have to change the settings.

[Dman3d]

ok thanks

[Dman3d]

Still trying, must be going insane, happens all the time.
Any rules of thumb for translucence? First time I have really looked at it and I am not sure if I am missing something simple. I know the thickness number is problematic as it seems to not match any realworld value.

The object I am working with is 3"x3"x3" trying to do the ice cube bit but now I am trying to use translucence on anything other than a plane,

Any guess?

[Da_elf]

well. to my shame i have to agree about it not working, the thing is i use an egz wax material and that works. but setting up a white sss ice cube material wasnt working

[egz]

elf: could you post the settings or a scene?

[Da_elf]

http://www.myweb.cableone.net/amylen...ff/icecube.zip

[malleus]

Yeah translucency is a fickle thing in Vray. I have spent hours trying to set up translucency and got nothing but black. If you crank up the light multiplier to 100 you might get something, but at that brightness it's likely to be just pixelly garbage.

Remember to make your fog multiplier very very very small (eg 0.01), and the fog color like 2 saturation points off white.

M

[Dman3d]

Will try straight away, thanks for the tip!
Been troublesome

[Dman3d]

white pixel garbage might be an understatement
Well I will keep poking at it.
Vlado, any way to make translucence make a little more sense?

---->
Perhaps others will understand this but it seems if you try to mix translucence with refraction this is when you get the black effect.
I guess I am going about this the wrong way, will try other methods.Or more to the point, can you mix translucence and refraction? Perhaps I am breaking some rule here.

[egz]

Translucency needs glossy refraction to work, so yes you can mix the two. In fact you must mix the two

[Dman3d]

Thanks for putting up with me, I will poke around more, really want to make this ice thing work. Past the point of no return. I will never actually use it for anything but I want to make this work.

Does the refraction need to be some % of the translucence or vice-versa?
Black, black and more black. On occassion it seems like it is working a bit then bammo - crap. I think I have tried about 40k different settings and variations.

This is really not working.

[egz]

try this for a start:

http://home.egz.com/vray/icecube.zip

it's not perfect, but at least it's not rendering black.

(needs 1.09.03)

[Dman3d]

Sweet, trying now, thanks. Will post any results

[Dman3d]

Funny thing is my mats are almost identical to yours, seems that either at this scale or with these types of materials in particular any small change is indeed dramatic.

thanks again egz!

:madness averted: