Glass test

Post by **OnoSendai** » Sun Nov 12, 2006 6:20 am

Becco:
It should all be correct, i just have to be careful

First decent result:

Thanks for the model Kosmo!

Post by **OnoSendai** » Mon Nov 13, 2006 12:07 am

Another test, with fixed reflection code:

tungee · Post by **tungee** » Mon Nov 13, 2006 12:21 am

this looks cool!

filippo · Post by **filippo** » Mon Nov 13, 2006 1:27 am

my glass.....first test...hi thanks

Post by **OnoSendai** » Mon Nov 13, 2006 1:32 am

Another one, short render time

edit: replaced with better image

Post by **OnoSendai** » Mon Nov 13, 2006 10:37 pm

I've made a post about this on my blog, has some purty pictures

http://www.indigorenderer.com/blog/?p=30

manitwo · Post by **manitwo** » Sat Jan 13, 2007 2:48 am

OnoSendai wrote:For the record:
there is no way to model/render liquids in a glass entirely correctly in any released version of Indigo.
Depending on how this new technique works out, the next version should have support for this.

Now the first 0.7 test version is out and i'm wondering if it's possible now?
Do we need special settings for the materials like precendence or something?
We have to enable also polarisation in the infile.txt i guess?

Post by **OnoSendai** » Sat Jan 13, 2007 2:53 am

Yes, correct rendering of glass/liquids is possible now.
Make the model to the specifications in the first post.
You'll need to define two 'medium' elements in the xml, glass and water.
Give glass a precedence > than that of water, say 20.
Set water precedence to 10.
(air always has precedence of 1).

Then create two specular materials.
The <internal_medium_name>'s should be set to glass and water respectively.

Polarisation doesn't have to be enabled.

manitwo · Post by **manitwo** » Sat Jan 13, 2007 2:57 am

thank you for your light-fast answer

Post by **fused** » Sat Jan 13, 2007 3:03 am

crap....

I knew there had to be something wrong with this:

forgot the precedence thing...

manitwo · Post by **manitwo** » Sat Jan 13, 2007 3:26 am

sorry but i have another question:

Can i give a sss-mat also a precendence tag? if yes - how?
Want to try that: http://www.indigorenderer.com/joomla/fo ... php?t=1053

CTZn · Post by **CTZn** » Sat Jan 13, 2007 3:28 am

That's great Ono !

Any hint what precedence is about, in short ? What's the relation with ior ? Er, why 10 or 20 not 0.2 or 200k ? In short, heh !? Got some web ressource about that ?

Thx

Post by **OnoSendai** » Sat Jan 13, 2007 3:28 am

Yes..

Code: Select all

	<medium>
		<name>scattering_medium</name>

              <precedence>10</precedence>
		
		<ior>1.5</ior>
		<cauchy_b_coeff>0.0</cauchy_b_coeff>
		<absorption_coefficient_spectrum>
			<rgb>
				<rgb>10000.0 5 5</rgb>
			</rgb>
		</absorption_coefficient_spectrum>
		
		<subsurface_scattering>
			<scattering_coefficient_spectrum>
				<uniform>
					<value>10</value>
				</uniform>
			</scattering_coefficient_spectrum>
			
			<phase_function>
				<uniform/>
			</phase_function>
		</subsurface_scattering>
	</medium>

should work

manitwo · Post by **manitwo** » Sat Jan 13, 2007 3:31 am

thanks again

deltaepsylon · Post by **deltaepsylon** » Sat Jan 13, 2007 9:05 am

awsome.....

Glass test

my glass

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