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Milk (regular)
Slowest material ever forever.


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Indigo 100
"You DRINK milk, you don't RENDER it"

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Today I did both... at the same time too.


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Indigo 100
You mean you drank a glass of milk in 50 hours?

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Indigo 100
30 days?


30 DAYS?

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dag wrote:
Today I did both... at the same time too.

:lol: No way, u crazie :lol:

:shock: 722h how, what's the material?
--------

Path tracing is much faster but doesn't work always.

That's path tracing with MLT,
120h, 60k s/pix
Warning nudity
http://static3.nagi.ee/i/p/700/35/175088374fdbce_o.jpg

Material is:
Code:
<?xml version="1.0" encoding="utf-8" ?>
<scenedata>
    <medium>
        <name>Milk</name>
        <precedence>6</precedence>
        <basic>
            <ior>1.34</ior>
            <cauchy_b_coeff>0</cauchy_b_coeff>
            <absorption_coefficient_spectrum>
                <rgb>
                    <rgb>1.6918 1.823898 2.484303</rgb>
                    <gamma>2.2</gamma>
                </rgb>
            </absorption_coefficient_spectrum>
            <subsurface_scattering>
                <scattering_coefficient_spectrum>
                    <uniform>
                        <value>500</value>
                    </uniform>
                </scattering_coefficient_spectrum>
                <phase_function>
                    <henyey_greenstein>
                        <g_spectrum>
                            <rgb>
                                <rgb>0.06365 0.06059 0.05779</rgb>
                                <gamma>2.2</gamma>
                            </rgb>
                        </g_spectrum>
                    </henyey_greenstein>
                </phase_function>
            </subsurface_scattering>
        </basic>
    </medium>
    <material>
        <name>Milk</name>
        <specular>
            <transparent>true</transparent>
            <internal_medium_name>Milk</internal_medium_name>
        </specular>
    </material>
</scenedata>


And this one is Bidir MLT, (slower)
10k s/pix, ~35 hours (45h, but master was paused a lot)
Image
Material is:
Code:
<?xml version="1.0" encoding="utf-8" ?>
<scene>
    <medium>
        <name>Milk</name>
        <precedence>6</precedence>
        <basic>
            <ior>1.34</ior>
            <cauchy_b_coeff>0</cauchy_b_coeff>
            <absorption_coefficient_spectrum>
                <rgb>
                    <rgb>1.4143 1.7576 2.8281</rgb>
                    <gamma>2.2</gamma>
                </rgb>
            </absorption_coefficient_spectrum>
            <subsurface_scattering>
                <scattering_coefficient_spectrum>
                    <uniform>
                        <value>416</value>
                    </uniform>
                </scattering_coefficient_spectrum>
                <phase_function>
                    <henyey_greenstein>
                        <g_spectrum>
                            <rgb>
                                <rgb>0.1875 0.1785 0.17025</rgb>
                                <gamma>2.2</gamma>
                            </rgb>
                        </g_spectrum>
                    </henyey_greenstein>
                </phase_function>
            </subsurface_scattering>
        </basic>
    </medium>
    <material>
        <name>Milk</name>
        <specular>
            <internal_medium_name>Milk</internal_medium_name>
            <transparent>true</transparent>
            <layer>0</layer>
        </specular>
    </material>
    <alias_material>
        <current_name>Milk</current_name>
        <new_name>previewmaterial</new_name>
    </alias_material>
    <include>
        <pathname>PACKED_0_matpreviewscene_igmesh.igs</pathname>
    </include>
</scene>


Last edited by Meelis on Wed Feb 02, 2011 8:02 am, edited 1 time in total.

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Indigo 100
Great renders, very realistic.

But uh, why the um.. decal? on the glass? :wink:

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Godzilla wrote:
Great renders, very realistic.

But uh, why the um.. decal? on the glass? :wink:


Yeah it covers up too much,
I modeled new nice glass with curves in blender, maybe i re-render.
---------

3-4 super samples is minimum for such material, i guess.


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http://www.home.no/faenskap/3d/scattering-properties-of-participating-media.html
Milk (regular)

Code:
<?xml version="1.0" encoding="utf-8"?>
<scenedata>
   <medium>
      <name>milk_medium</name>
      <precedence>2</precedence>
      <basic>
         <ior>1.345</ior>
         <cauchy_b_coeff>0</cauchy_b_coeff>
         <absorption_coefficient_spectrum>
            <rgb>
               <rgb>
                  1.533 4.6 19.933
               </rgb>
               <gamma>1</gamma>
            </rgb>
         </absorption_coefficient_spectrum>
         <subsurface_scattering>
               <scattering_coefficient_spectrum>
                  <rgb>
                     <rgb>
                        18205.3 20382.6 22369.8
                     </rgb>
                     <gamma>1</gamma>
                  </rgb>
               </scattering_coefficient_spectrum>
               <phase_function>
                  <henyey_greenstein>
                     <g_spectrum>
                        <rgb>
                           <rgb>
                              0.75 0.714 0.681
                           </rgb>
                           <gamma>1</gamma>
                        </rgb>
                     </g_spectrum>
                  </henyey_greenstein>
               </phase_function>
         </subsurface_scattering>
      </basic>
   </medium>
   <material>
      <name>milk</name>
      <specular>
         <internal_medium_name>milk_medium</internal_medium_name>
         <transparent>true</transparent>
         <layer>0</layer>
      </specular>
   </material>

</scenedata>


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Yeah that's pretty high scattering value (20 000).


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722hrs...damn, 15minutes with vray and same look :shock: :lol:


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3rd dev
Milk and breasts ? Uhm..Ok, I suppose they match, kind of.. 8)


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suvakas wrote:
Milk and breasts ? Uhm..Ok, I suppose they match, kind of.. 8)


Yep :D


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30 days milk with a hundred percent unbiased physical renderer :lol:


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Indigo 100
iseewutudidthar.jpg

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