Attack of fireflies

[neo0.]

SSS used. Bidirectional PT. Rendered for over 5 hours.

[Godzilla]

Quick question:

Why is the liquid.. solid?

[Borgleader]

Can we have a wireframe of the scene?

[StompinTom]

Check normals, check overlaps and precedence of the glass and liquid materials. Precedence might be your culprit...

[neo0.]

Quick question:

Why is the liquid.. solid?

Thank you for pointing that out, Godilla. Will fix soon.

I seem to have solved it by using plain MLT. What indigo really needs are optional hints like "You are using SSS. Do you want indigo to switch to MLT?"

[lycium]

Good suggestion neo0!

StompinTom, thanks for helping out with the correct suggestions

[neo0.]

I am getting a lot of colored noise.. 5,120 spp

[galinette]

Again, which render mode is used?

How is the scene lit?
- If you use concentrated light sources, bidirectionnal modes are quite more efficient (especially Bidirectionnal PT is much more efficient than standard PT for concentrated light)
- If you use outdoor light passing through small apertures, don't forget portals

[neo0.]

Thank you. That solved the problem. Might I inquire as to what normal path tracing is good for?

[lycium]

Exterior scenes, simple lighting situations.

[Borgleader]

Exterior scenes, simple lighting situations.

Basically no caustics?

[lycium]

Yup, single directional path tracing isn't very good for caustics. That's why we have bidirectional, so we can render real scenes

[StompinTom]

Yup, single directional path tracing isn't very good for caustics. That's why we have bidirectional, so we can render real scenes

Bidirectional Pathtracing - Real scenes for real men.

[lycium]

Hey now, that's sexist

In any case, there are scenes where single directional does really well, and it's those scenes we're optimising for right now. Once the GPU stuff is out and we've resolved some general issues people are having, we have some plans to make rendering in general much more efficient

[neo0.]

When is GPU support gonna be out?