Has anyone tested arnorld vs vray ?

[Paul Oblomov]

From my tests it looks like arnold is somehow a little faster in pure bruteforce. Also, they have very pleasant noise imho. And they have glossy reflections depth. Which sometimes provides you with pretty fast glossy surfaces, that you might think it is the way, it should be. Until you, of course, won't rise the reflection depth. As far as I know, vray treats glossy deep inside, so you can't limit only glossy reflection depth.

I know, that vray can handle sampling very efficiently. But you know Another vray checkbox will make me happy

[jasonhuang1115]

Hey Paul,

What's a pleasant noise? I am curious how different it is in terms of calming down noise in Vray vs. Arnold?

[vlado]

Another vray checkbox will make me happy

Of course it can be done, but there's options all over the place already Do you think it's really that important to have it? If yes, we'll do it, but then don't complain that "V-Ray is too complex"

From what I know, Arnold is somewhat faster with brute force, but it is not adaptive (i.e. no "universal" settings approach). You either have to tweak shader samples individually (which could be tedious), or sample everything with the same fixed rate (which could be slow). This is part of the reason for the subjectively "better" noise - since the number of samples is known in advance, they can be distributed better; V-Ray does not know how many samples it will take, so it must use a more conservative distribution. Also, we have room for a lot of optimizations that we just never got round to; V-Ray can easily be 20-30% faster after we have finished our current round of optimizations.

Best regards,
Vlado

[jacksc02]

Of course it can be done, but there's options all over the place already Do you think it's really that important to have it? If yes, we'll do it, but then don't complain that "V-Ray is too complex"

From what I know, Arnold is somewhat faster with brute force, but it is not adaptive (i.e. no "universal" settings approach). You either have to tweak shader samples individually, or sample everything with the same fixed rate. (This is part of the reason for the subjectively "better" noise - since the number of samples is known in advance, they can be distributed better; V-Ray does not know how many samples it will take, so it must use a more conservative distribution.) Also, we have room for a lot of optimizations that we just never got round to; V-Ray can easily be 20-30% faster after we have finished our current round of optimizations.

Best regards,
Vlado

20-30%!! Get optimizing!!!!!!!!

[jacksc02]

Of course it can be done, but there's options all over the place already Do you think it's really that important to have it? If yes, we'll do it, but then don't complain that "V-Ray is too complex"

From what I know, Arnold is somewhat faster with brute force, but it is not adaptive (i.e. no "universal" settings approach). You either have to tweak shader samples individually, or sample everything with the same fixed rate. (This is part of the reason for the subjectively "better" noise - since the number of samples is known in advance, they can be distributed better; V-Ray does not know how many samples it will take, so it must use a more conservative distribution.) Also, we have room for a lot of optimizations that we just never got round to; V-Ray can easily be 20-30% faster after we have finished our current round of optimizations.

Best regards,
Vlado

20-30%!! Get optimizing!!!!!!!!

[rivoli]

V-Ray can easily be 20-30% faster after we have finished our current round of optimizations.

step on it then

[Morne]

God, please grant me patience, and hurry!

[Paul Oblomov]

I don't know how to mimic arnold behavior with vray. That's why maybe I need glossy depth
6m 50s each

scene valid for 30 days
max2012
http://rghost.ru/40716112

2600k@4.3

[AJ Jefferies]

I asked to test Arnold for 3ds Max earlier this year and was told that they have no immediate plans to support 3ds Max - is that no longer the case or are you using the standalone version?

[Paul Oblomov]

No. It is maya version.

[vlado]

I don't know how to mimic arnold behavior with vray.

Easy, use a VRayOverrideMtl material and put the same material, but with lower glossiness as the 'reflection' and 'GI' materials.

Best regards,
Vlado

[Paul Oblomov]

I wish somebody will show me the settings

P.S. What if the material should be the same? For example I put override material on top

[vlado]

P.S. What if the material should be the same? For example I put override material on top

I'm not sure I got that - the same material as what? Override material on top of what?

Best regards,
Vlado

[Paul Oblomov]

Override material will change not only the floor object, but will change also everything else. I don't want it No ?

[vlado]

Override material will change not only the floor object, but will change also everything else. I don't want it No ?

The VRayOverrideMtl material only applies to those objects that have that material (don't confuse it with the global material override in the V-Ray settings).

Best regards,
Vlado