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Looks biased to me. Gotta test irl to compare.


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

Was it fresh when you started rendering? :)


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Yea, but I guess a cockroach or two drowned in the milk in the meantime...
Can't avoid the bugs


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Well, that didn't work.
Lowfat milk, regular milk, lowfat choc milk, regular choc milk.


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milk.jpg
milk.jpg [ 393.44 KiB | Viewed 1064 times ]
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dag wrote:
Well, that didn't work.
Lowfat milk, regular milk, lowfat choc milk, regular choc milk.


Absorption is in balance with scattering.
If u lower the scattering then absorption color takes over.

Still the renders look interesting.


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Drink your milk boys.


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chocolate_milk.jpg
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Looks delicious! :D

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Nice !!


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Great results, dag!
How long did you render, and in which mode?

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Deliciously long...

Milk rendered to 20k spp in 131 hours and it's still a little noisy, and it doesn't seem to clear up anytime soon. Minimal absorption and high scattering is not a good combo.
Chocmilk 16k spp in 22 hours thanks to higher absorption.

Rendered with an i7 860 with MLT. Bidir is like drinking a gallon of syrup with that kinda scattering.


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Amazing milk! :shock:
Can you share your materials please? 8)

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For SSS you probably want to use single directional PT with MLT on - as you say bidir really slows to a crawl when there are so many scattering events (as it tries to connect each such event to every other between the eye and light paths).


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lycium wrote:
For SSS you probably want to use single directional PT with MLT on - as you say bidir really slows to a crawl when there are so many scattering events (as it tries to connect each such event to every other between the eye and light paths).


+1


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lycium wrote:
For SSS you probably want to use single directional PT with MLT on - as you say bidir really slows to a crawl when there are so many scattering events (as it tries to connect each such event to every other between the eye and light paths).
Hmmm, quite interesting.. I thought BiDir does help here since it optimized the ray paths.

Is this BiDir thing a general SSS issue, or just tilt over on a certain point of SSS strength?

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In general when you have highly scattering media, bidir will become quite slow.


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