Adaptively decreasing GI samples with distance

[Metin_7]

Hi,

I've just read that the latest finalRender update offers something called Level Of Detail GI. This sounds very interesting, as it will shrink the amount of necessary GI samples to less samples as distance increases (and visible detail decreases).

Cheers,

Metin

[RErender]

Sounds like the distance threshold in V-Ray

[Metin_7]

I always thought the dist. treshold had something to do with the intensity or sharpness of GI shadows. How does it exactly work then? I guess it's about time for a significant update of the old 1.0 manual.

Cheers,

Metin

[RErender]

Yeah, you are right momentary lapse

[Metin_7]

[GoncaloP]

Vray already does that, the distance between samples increases as you get away from the camera, and you can see it with the irradiance map viewer

And Distance threshold "controls how sensitive the irradiance map is to distance between surfaces. A value of 0.0 means the irradiance map will not depend on object proximity at all; higher values place more samples in places where objects are close to each other."

[cpnichols]

Just in general Vray is highly adaptive. It is for this reason that the Samples are set to 50 by default, which would be 2500 (50x50) samples. The truth is that Vray will most likely never cast that many rays, but it will adapt based on distance, visibility and everything else. In order to fine tune the adaptive setting of the samples, you can adjust the values under the QMC Samples.

[vlado]

As Goncalo and Christopher pointed out, VRay is already adaptive to a very large degree (of course, more can be done and we are working on it ). The irradiance map already takes in account the distances of objects to the camera (though the actual thing it does is a bit more complicated and somewhat similar to texture filtering where textures get blurrier and smoother as you get away from them)...

Best regards,
Vlado

[Metin_7]

Cool! I'm totally up to date again. Is there actually anything to really complain about VRay?!

[taboo]

i am always having no doubt that, we are in good hands.

[Metin_7]

That's the nice thing about VRay ... When it comes to Microsoft software people are mainly complaining. In the case of VRay people are mainly happy. Hey Vlado, maybe you should call Bill Gates and ask if he needs a programmer to totally rewrite Windows, this time with an intelligent approach.