How to render "Tyndall effect" in octanerender?

[suitlm]

Hi ,i want to know how to render Tyndall effect in octanerender?

[JuM]

what is "Tyndall effect" could you show any examples?

[stratified]

The Tyndall effect is the scattering of light due to particles in a fine suspension (http://en.wikipedia.org/wiki/Tyndall_effect). Light with shorter wavelenghts (blueish) scatters more so it gives the suspension a blueish color.

An example is the blue sky on a clear day. Another example is Lake Tekapo in NZ, fine rock particles in the water ("rock flour") scatter the light and give the lake it's nice blue color.



Octane doesn't account for this effect so you'll have to fake it.

cheers,
Thomas

[roeland]

You can approximate this with a scattering medium, set the scattering to a slightly blue color (but don't use fully saturated colors).

There is a material like this in liveDB, Materials » Non-Organic » Glass » silica aerogel.

It will take a while to render noise free though, you have to either use PMC or switch on fake shadows.

--
Roeland

[suitlm]

You can approximate this with a scattering medium, set the scattering to a slightly blue color (but don't use fully saturated colors).

There is a material like this in liveDB, Materials » Non-Organic » Glass » silica aerogel.

It will take a while to render noise free though, you have to either use PMC or switch on fake shadows.

--
Roeland

Thanks ! I will try

[suitlm]

It's done.

Flickr 上 废画 的 ocTyndall Effect