Search found 51 matches

by FarbigeWelt
Sun Jul 22, 2018 10:26 pm
Forum: Works in Progress
Topic: Test scences GPU Path vs CPU BiDir
Replies: 68
Views: 1664

Reasons for Snow: Ev. Light or Sun

Gain does not have any influence on environmental light's brightness. Env. light has the ability to pass throu material matte and throu every little split in a model adding snow or fireflies. I tried to have scene with env. light shining throu the window but no matter which gain I set, lamps inside ...
by FarbigeWelt
Sun Jul 22, 2018 8:36 pm
Forum: Works in Progress
Topic: Test scences GPU Path vs CPU BiDir
Replies: 68
Views: 1664

Foam simulation is complex

Well, that is a good idea, B.Y.O.B. Nice scence and your beer looks close to be drinkable. At the moment I'm far away from a good scence. Table and chairs are old models. Some of the my first models actually. Again, I'm fighting with fireflies using Sobol. Roughness seems to be one reason for them. ...
by FarbigeWelt
Sun Jul 22, 2018 4:01 pm
Forum: Works in Progress
Topic: Test scences GPU Path vs CPU BiDir
Replies: 68
Views: 1664

Re: Foam simulation is complex

First I prerendered a minute or two to get the clamping guess. Then I checkmarked clamp using the suggestion. And started the render with Sobol adaptive set to 0.95. This lead to 215 kS/s for the 121 M Tris scence without any fire flies. Hurrah! Denoising is off. The bubbles' size is a bit reduced, ...
by FarbigeWelt
Sun Jul 22, 2018 2:24 pm
Forum: Works in Progress
Topic: Test scences GPU Path vs CPU BiDir
Replies: 68
Views: 1664

Foam simulation is complex

Thank you for your input, wasd. You are right it is even more complex than my simplification with spherical bubbles. And there are many different kind of foams in nature as your examples show well. How ever beer foam seems to be close to a compact packing of spheres because the bubbles are pretty an...
by FarbigeWelt
Sun Jul 22, 2018 10:26 am
Forum: Works in Progress
Topic: Test scences GPU Path vs CPU BiDir
Replies: 68
Views: 1664

Foam simulation is complex

Sometimes my curiosity is much more intensive than any reasonable estimation. Do you ever had a closer look at foam? It seems to be white. But it is build from many colorless bubbles. The bubble is made from a thin liquid of water enclosing air. Parts are clear but foam looks white. Some people woul...
by FarbigeWelt
Sat Jul 21, 2018 2:33 pm
Forum: Works in Progress
Topic: Hairpins
Replies: 4
Views: 114

Re: Hairpins

But it's a little off. Now I wonder what's wrong and why there's no magic. In the first picture the ground looks flat. There are flat cracks. There is a real good reality checker in our mind, fast enough to detect a mirror as a mirror. The picture is almost perfectly rendered but something is wrong...
by FarbigeWelt
Sat Jul 21, 2018 11:27 am
Forum: Works in Progress
Topic: Test scences GPU Path vs CPU BiDir
Replies: 68
Views: 1664

Bubble Bubble

There is stil a good distance to go until the visualization fits my imagination. But I made already a good part of the way. Here are some impressions of this hiking tour throu digital valleys and over binary hills. Bubbles Glass Air Water CPU BiDir Metropolis.png Bubbles Glass Arc. Air Water CPU BiD...
by FarbigeWelt
Sat Jul 21, 2018 11:04 am
Forum: Works in Progress
Topic: Hairpins
Replies: 4
Views: 114

Re: Hairpins

wasd wrote:
Fri Jul 20, 2018 9:38 am
Not what I expected though...
CPU Bidir+Metropolis, 12.3 k samples.
What did you expect then?
by FarbigeWelt
Sat Jul 21, 2018 7:27 am
Forum: Works in Progress
Topic: Test scences GPU Path vs CPU BiDir
Replies: 68
Views: 1664

Re: Test scences GPU Path vs CPU BiDir

I used to render the scence with cylces too. Maybe this is a reason. No that also should not cause problems. If you can provide the exact error message (and the scene, if possible), that would be great. Okay, I opened a new issue and uploaded the old scence and noted some step by step reproduction ...
by FarbigeWelt
Fri Jul 20, 2018 9:42 pm
Forum: Works in Progress
Topic: Test scences GPU Path vs CPU BiDir
Replies: 68
Views: 1664

Re: Test scences GPU Path vs CPU BiDir

However, it should normally not be required to append anything into a new Blender file. Nice physics sim! Are you using motion blur for the chains? By the way, in the shadows on the right you can see that the chains are not connected to the spheres. I used to render the scence with cylces too. Mayb...