Indigo 0.8 test 1

afecelis · Post by **afecelis** » Wed May 02, 2007 4:26 pm

hip hip hurray for manitwo!

Great explanation my friend!

Phoenix · Post by **Phoenix** » Thu May 03, 2007 12:37 am

manitwo wrote:all modes should give the exact same image after a given time. So every mode is physical accurate. The difference between those modes is how the noise converges. Some modes are faster, some slower for different things.

- MLT is good for indirect light, glass and caustics but not so good for direct light. Generally the noise is kind of "dirty-patchy-nonuniform".
- PathTracing is good for direct light but needs longer for indirect light, glass and caustics. The noise is uniform.
- Hybrid is a combination of MLT and PT. Hybrid uses PT for direct light and MLT for indirect light, glass and caustics. Hybrid combines the strenghts of MLT and PT. If Hybrid is enabled the Metropolis option is ignored.

- Bidir can be combined with MLT or PT or Hybrid. Bidir makes noise in scenes with indirect light, glass and caustics clear faster.
In indigo 0.8t1 bidir is causing black-image problems but keep in mind that the actual version is a test release! - so don't hesitate
- rQMC is (afaik) a more efficient way of sampling which also makes the noise clear faster (some scenes benefit a bit, others a lot). As a side effect there might be noise-"patterns" in the first seconds of rendering. rQMC is enabled since 0.8 - you cant turn it off - but why should you?

once again:
Possible Combinations:
- MLT Mode: ("Metropolis"-true)
- Pathtracing Mode: ("Metropolis"-false)
- Hybrid Mode: ("Hybrid"-true)
- Bidir MLT Mode: ("Metropolis"-true, "Bidir"-true)
- Bidir Pathtracing: ("Metropolis"-false, "Bidir"-true)
- Bidir Hybrid Mode: ("Hybrid"-true, "Bidir"-true)

The last two modes are recommend.

Hope this helps!

Thank you very much for this summarised explanation!

It also should enter the Indigo manual and the Wiki, in my opinion.

Stur · Post by **Stur** » Thu May 03, 2007 12:47 am

Phoenix wrote: Thank you very much for this summarised explanation!

It also should enter the Indigo manual and the Wiki, in my opinion.

I deeply second that !

Marcofly · Post by **Marcofly** » Fri May 04, 2007 12:45 am

thank you manitwo!

and thank you Master Ono!

ciao!

Camox · Post by **Camox** » Fri May 04, 2007 2:59 am

wow nick indigo 0.8 is awesome, thank you !

vansan · Post by **vansan** » Fri May 04, 2007 4:21 am

It's Awesome!

Some issues with bidirectional tracing (in 3dsmax a simple scene fails to start), hope this will get fixed in the next build.

Deus · Post by **Deus** » Sat May 05, 2007 8:47 am

Just dled the new release and I must say it rocks. It has less of the memory problems/crashes the 07 release had. I keep on working on indigoworld now. Doing a test render of about 1M tris atm.

(for those of you that dont know what indigoworld is here is an old image)

http://www2.indigorenderer.com/joomla/i ... emId=10360

Kram1032 · Post by **Kram1032** » Sat May 05, 2007 11:05 pm

Post new ones

tizxx · Post by **tizxx** » Tue May 15, 2007 12:47 am

Sorry maintwo... but I not understand.

Bidir is usefull for direct light but the noise is more present
Metropolis is useull for indirect light
Hybrid ignore the metropolis and use bidir or pt.

the combination of bidir and metropolis is a good choise?

If we use only bidir or only metropolis is phisically correct... ?

the images procuduced by Bidir or Metropolis or Hybrid
method are different...

so wha is the best situation for a phisically correct solution?
Ono can you help us?

Indigo 0.8 test 1

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