It works, but I feel that Optix denoiser takes also away some crispiness from the render.
Do I have any settings to change to find a better balance when fighting the fireflies? I know they are coming from the reflective floor surface, since in the first cc & HDR Light Studio render I did not had this problem: Beutiful skin with CC character & HDR Light Studio
It was all coming from the stupidly large golden floor plane.
I deleted it and I get totally perfect noise free renders with default rendering settings.
As you can see, the light quality is better , but also we get much more of overall noise with this. Before I start to play with Optix desoiser, what are my options here to tweak the settings and have a less noisy image ?
Now if you zoom on the fullrez, you can see the extra fire flies coming!
So HDR Light Studio´s environment dome + reflecting plane under the character together make this. Strange?
It´s not even the plane! It´s the environment dome light, see
I think someone from NVIDIA needs to give some advice on this. Your findings do not apply to only HDRI maps made with HDR Light Studio, but this would be with any dome lighting. So its a general issue, not specific to HDR Light Studio.
BTW, all lights in HDR Light Studio can be selected and converted to Omniverse Area Lights by pressing CTRL + Space bar. So you get the best of both words using that method.
I think you should not confuse the situation by saying the ‘HDR Light Studio dome light’ is creating the issue.
The issue is generated by just the Omniverse dome light… we just make a HDRI map that is used by it. You would get the issue with any HDRI map produced by any method… I am guessing the map you have created has small and very bright lights on it… which is a more difficult situation for the renderer to handle. But most renderers have ways to deal with this and use importance sampling methods from the HDRI map, to reduce noise from small bright lights by sampling the bright areas more, and producing smoother renders. Let’s see if anyone technical from NVIDIA has anything to say.
Your settings are crazy high on the sample count, I would do a 1440p image with Optix and work with the power of the lights being lower but the exposure being higher.
thanks for your patience and sending over the scene. After inspecting it, I found that the firefly noise in your renders is caused by using an EXR map for the DomeLight, which the renderer currently doesn’t handle in the same optimized way as it handles HDR maps. We will provide a fix in a future release. A workaround for now is to convert the EXR map to a HDR map for the Domelight, which will result in less fireflies and will also render much faster to a noise free image.