Experiments with Exit Portals.

Post by **Oscar J** » Sat Aug 29, 2015 8:05 am

Hi contegufo,

these HDRI's have quite a high dynamic range:

http://www.viz-people.com/portfolio/free-hdri-maps/

Enjoy.

pixie · Post by **pixie** » Sat Aug 29, 2015 12:31 pm

Some cheating to see if the image get less noise: the walls and ceiling hava a similar light strenght to the outdoor, then the layers strenghts got adjusted.

contegufo · Post by **contegufo** » Sun Aug 30, 2015 4:28 am

In these examples I replaced sky & sun with an environment map, rendering 4 min.

Map used.

1) map not blurred
2) blurred map 6%
3) blurred map 12%
4) blurred map 25%
5) blurred map 50%

The map has been rotated by 60 ° to let in the light from the windows.

contegufo · Post by **contegufo** » Sun Aug 30, 2015 4:32 am

After over 20 hours here is the area of the floor where they appear caustics.

No noise and no fireflies!

thesquirell · Post by **thesquirell** » Sun Aug 30, 2015 5:56 am

BiDirMLT?

Post by **Oscar J** » Sun Aug 30, 2015 6:12 am

Perhaps the standard value for LMP should be closer to 1 when rendering with MLT?

contegufo · Post by **contegufo** » Sun Aug 30, 2015 7:03 am

thesquirell wrote:BiDirMLT?

Yes!

contegufo · Post by **contegufo** » Sun Aug 30, 2015 7:04 am

Oscar J wrote:Perhaps the standard value for LMP should be closer to 1 when rendering with MLT?

Currently 0.85

1? What benefits should give?

Post by **Oscar J** » Sun Aug 30, 2015 7:08 am

0.85 is closer to 1 than the standard value 0.4 or whatever. I didn't say 1, I said closer to 1.

thesquirell · Post by **thesquirell** » Sun Aug 30, 2015 7:15 am

Well, it all depends on what you are going for. If values close to 1 can help those noise levels disappear more over time, instead of sticking like with 0.45, then why not?

Would put people on the right track from the start.

contegufo · Post by **contegufo** » Sun Aug 30, 2015 7:21 am

A considerable help is NOT reflective floor.
We are on the right track!

contegufo · Post by **contegufo** » Mon Aug 31, 2015 4:46 am

HI

Sky and Sun has been replaced with environment map blurred to 6%.
Less and less light enters are obvious caustics and lighting between objects with energy transport; what you see on the floor (exponent = 10) looks pretty.
After 4h. no noise and no fireflies.

Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Re: Experiments with Exit Portals.

Who is online