Hi guys,
have you some suggestions to render mirror avoiding fireflies like the image below?
See the benches near the mirror on the left
big mirrors and fireflies
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Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Re: big mirrors and fireflies
You should try to make the light invisible in indirect light. LuxCore has an option for that (not sure if it is exposed on Blender). You can achieve the same effect using not intersectable light sources (like point lights, spot lights, etc.).
What type of light sources are you using ?
Re: big mirrors and fireflies
I'm using spot light for every light fixture.
About visibility for indirect I can't see any option available in BlendLuxCore.
About visibility for indirect I can't see any option available in BlendLuxCore.
Re: big mirrors and fireflies
Mmmm, ok, so this is a different kind of problem. It should be this (i.e. the lack of MIS):
Can you post a scene with just walls, the nearest desk and a couple of spot lights covering the desk ? The fireflies over the desk top should be still there.
Re: big mirrors and fireflies
Try to work with small light and clamp value.Hi guys,
have you some suggestions to render mirror avoiding fireflies like the image below?
Light Value
Gain = 1
Efficay = 1
Power = 3 to 10
Clamp Value
Clamping = 5 to 50
Also make your emitting Object Simple: The part of your Spot with the emissive Shader on it should be very simple (Quad). And the large the quad less will be fireflies.
Try to not use glass or Arglass in front of your emitter (It doesn't make great visual diference and hit performance).
Re: big mirrors and fireflies
Yes, it can be found in the "visibility" panel. Note that this panel is only visible for light sources where it makes sense: sun and hemi (infinite) lights.
For point and spot lights it makes no sense because as Dade said they are not-intersectable anyway, and for area lights the panel is hidden because you are losing MIS if you disable the visibility (at least that's how it was until recently, not sure if that has changed?).
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Re: big mirrors and fireflies
No, no, it is still true, the last change was about emitting light correctly for transparent meshes.
Re: big mirrors and fireflies
What engine and sampler do you use?
CPU Bidir + Metropolis | Core i5-4570