V-Ray 3.0 Reflective noise

[flat]

V-Ray 3.0 is noisy when this scene is compared with 2.4.

Where is wrong?



test scene (max2012)
test2_2012.zip

[vlado]

There is nothing wrong; after a certain reflection/refraction depth (5, I think), V-Ray 3.0 will switch to probabilistically choosing reflections or refractions to save render time. If you add more AA samples, the noise will go away.

Best regards,
Vlado

[flat]

Ok, understanding

Tuning of V-Ray3.0 is intense!

[flat]

A question is asked again.
V-Ray 3.0 is faster than 2.4.

But the rendering of this scene cannot be done in shorter time in the same quality as 2.4.
V-Ray3.0 has many noises and its a rendering is long.
There is no worth using V-Ray3.0.

Is there any solution?



Test3 scene
test3_2012.zip

[vlado]

Well, for this particular scene, it is what it is. It is very easy for me to revert back to the old behavior, however this is an isolated test; in a real scene, it is very likely that there are many more things going on and more image samples will be needed anyways for various other effects. V-Ray 3.0 has an advantage in that case. If one scene out of 10 renders slower, I still think it is worth it. To conclude from this one test that V-Ray 3.0 is worthless would be wrong.

Best regards,
Vlado

[flat]

Ok.
My customer who reported this problem will require time until he realizes speedup of V-Ray 3.0.
He may select working by 2.4 for a while. But the period of grace of 2.4 has dissatisfaction in being half a year.

I hope that there is an environment variable switch turned to the old sample method.

[vlado]

I hope that there is an environment variable switch turned to the old sample method.

We can do that, certainly; will make a note to look into it.

Best regards,
Vlado