Milk.

DaveC · Post by **DaveC** » Mon Mar 26, 2007 4:21 am

I thing it's been milked to death. Who'd have thought getting a nice glass of milk could be so difficult? The spilt milk picture has a glass sphere with milk in the middle on the right. Just thought I'd say that to save confusion. And the other picture has a yellow-ish cast to it because all of the walls are yellow-ish.

I think I'm pretty much done with this milk thing now.

Posiadala · Post by **Posiadala** » Mon Mar 26, 2007 4:31 am

Nice. Milk seems to be good, looks natural, but IMO glass is not. But at all it's good work.

suvakas · Post by **suvakas** » Mon Mar 26, 2007 4:39 am

Looks so real !!!
Can you give some material tips? I tested the milk material from the other thread, but for some reason i cant douplicate it. What's the scale of your scene? Do you use glossy transparency?

Suvakas

[edit] Can you confirm that you are using glossy? I turned on glossy and it seemed to do the thrick.

DaveC · Post by **DaveC** » Mon Mar 26, 2007 4:48 am

Well, suvakas, my glasses are about 11cm high. And my material settings are...

Code: Select all

	<medium>
		<name>milk</name>
		<precedence>9</precedence>
		<basic>
			<ior>1.33</ior>
			<cauchy_b_coeff>0</cauchy_b_coeff>
			<absorption_coefficient_spectrum>
				<rgb>
					<rgb>0.055 0.0656786 0.086</rgb>
				</rgb>
			</absorption_coefficient_spectrum>
			<subsurface_scattering>
				<scattering_coefficient_spectrum>
					<rgb>
						<rgb>500 580.001 800</rgb>
					</rgb>
				</scattering_coefficient_spectrum>
				<phase_function>
					<uniform/>
				</phase_function>
			</subsurface_scattering>
		</basic>
	</medium>
	<material>
		<name>milk</name>
		<specular>
			<transparent>true</transparent>
			<internal_medium_name>milk</internal_medium_name>
		</specular>
	</material>

and in blendigo:

suvakas · Post by **suvakas** » Mon Mar 26, 2007 4:52 am

Thank you !!
Ok. You are not using glossy, but your scattering coef. is 100 times higher than what i have. I'll test it right away. Thanks!

Suvakas

[edit] Yep, it's working.

Post by **OnoSendai** » Mon Mar 26, 2007 5:04 am

DaveC:
while there are glasses with that high absorption, most normal clear glasses would have much less absorption, as Suvakas said.
Nice images!

DaveC · Post by **DaveC** » Mon Mar 26, 2007 5:10 am

Yes, the glasses do look a bit dark, don't they. I don't know why. The absorption was minimal. C'est la vie. Thanks for the nice comments.

Kram1032 · Post by **Kram1032** » Mon Mar 26, 2007 5:14 am

third or fourt thead in a row xD

Very very well done!

Maybe, you should post the glassmat, too^^
looks like special glass... can be useful for some scenes

suvakas · Post by **suvakas** » Mon Mar 26, 2007 5:14 am

What's the cauchy_b for glasses?

Suvakas

DaveC · Post by **DaveC** » Mon Mar 26, 2007 5:21 am

suvakas wrote:What's the cauchy_b for glasses?

Cauchy B for glass SHOULD be 0.003-ish. But for some reason, I used zero in these scenes.

Kram1032 · Post by **Kram1032** » Mon Mar 26, 2007 5:29 am

maybe, 'cause it's so slow?

Milk.

Milk.

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