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adamfilip

vray vs R16

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For the record I own VRAY, Octane and R16. I don't have one particular horse in the race I want to see win.

 

Absolutely with you there. I'm not backing any single rendering technology either. But I think it's always best to know what areas each one excels in.

 

The most used renderer in archviz is Artlantis, which is pretty poor by FX standards but its super fast and childs play to use so it's fit for purpose for many architects who see rendering as just another task to be completed (and with the least pain possible). I see it it as just another tool to get the job done depending on the brief. V-Ray and Arnold on the other hand I see as a palette of fine Windsor and Newton oil paints - in the right hands masterly work can be produced!  :)

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I was a bit dubious, Jon, that my system would take 40+ minutes to complete that one sample interior scene you tested. But using C4D's progressive physical renderer, it's now 45 minutes deep and on pass 6. At this point it's good enough for a comp but still features too much noise for a final.

 

I suspect for interior work VRAY will continue to reign supreme. But then maybe thats not a huge surprise.

 

(I'm rendering at 1440x800. I suspect progressive rendering is a bit slower than Adaptive, but still...)

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I'd think if speed was the premium objective...one should buy 3-4 current GPUs and use Octane, and I'd be shocked if brasc can refute me on that. Though I sure hope he tries!  :-)

 

This may surprise you, but I can refute that (sorta)! I run Octane on 3 pretty fast GPUs and it's not always the fastest engine, it's all down to complexity and thresholds but basically, it's SO fast to get a beautifully lit, reflections all over the place GI etc etc scene to about 80% quality, it's just to get passed that last 20% of noise takes a long time. I generally set it to run for 10mins a frame and that is acceptable. Of course it varies depending on what's going on in the scene, sadly it's never as clear cut to be able to rank render engines as clear winners and losers.

 

cheers

brasc

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I was a bit dubious, Jon, that my system would take 40+ minutes to complete that one sample interior scene you tested. But using C4D's progressive physical renderer, it's now 45 minutes deep and on pass 6. At this point it's good enough for a comp but still features too much noise for a final.

 

It is a challenging scene light wise as most of the light filling the room is indirect and any renderer would find it a challenge. As I mentioned in a previous post I think it's not as well optimised as it could be as many of the surfaces that are using the new reflectance channel capabilities could easily use standard C4D techniques. I'm going to test my theory over the next few days and see what I find but I reckon I should be able to make it at least 25% more responsive.

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Brasco... speaking of rendering that takes forever to complete that last 20% of quality (noise reduction)...I'm getting a taste of it with the c4d physical renderer churning on this interior scene.

 

Only, unlike Octane, it wasn't lightning fast to achieve even the first 80%. I'm 1 hour, 5 minutes and there is still noticeable noise on the stair railing.

 

C4d Phys took about 6 minutes to get to a rough preview. It's taken another hour since...on pass 9...but still not what I'd call finished.

 

 

(Using dual core, 16-thread 2009 Mac pro)

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brasco have your tried Presto MC mode in Thea Render?

I find it to be way faster than Octane's PMC mode, which would be the closest comparison to Thea's Presto MC mode.

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Brasco... speaking of rendering that takes forever to complete that last 20% of quality (noise reduction)...I'm getting a taste of it with the c4d physical renderer churning on this interior scene.

 

Yeah, that doesn't sound good, I'd imagine there's something going wrong with the GI?

 

brasco have your tried Presto MC mode in Thea Render?

I find it to be way faster than Octane's PMC mode, which would be the closest comparison to Thea's Presto MC mode.

 

I haven't yet, sounds good, I'll download the demo and try it out. Does it sacrifice anything in that mode?

In Octane, I mostly use Direct (with diffuse GI) or Path Tracing if I want better raytracing (still not as good physically correct as PMC) and hone the settings to suit.

 

cheers

brasc

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I think as of right now displacement and hair does not work with Presto.  The hair and displacement would have to be made into geometry before hand.  Presto AO might be worth playing around with as well.  I mention it because you said you had 3 video cards and it's a great one especially if you have GPU power.

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I haven't yet, sounds good, I'll download the demo and try it out. Does it sacrifice anything in that mode?
In Octane, I mostly use Direct (with diffuse GI) or Path Tracing if I want better raytracing (still not as good physically correct as PMC) and hone the settings to suit.

 

I'm a big fan of Thea myself and prefer it to Octane for GPU powered renders (although in truth I still prefer Thea in pure TR1 unbiased mode). The MC renderer running in hybrid mode (GPU & CPU) provides Maxwell like unbiased quality but with very little in the way of GPU compromises on quality. A biased engine like V-Ray is still quicker but Thea offers a great solution for many situations. The AO mode is super quick and usable in certain situations but it cuts too many corners for my taste.

 

This benchmark PDF is pretty fair in it's description of Thea performance with the MC engine.

 

http://www.thearender.com/cms/images/edition13/TheaPrestoGPUCPUBenchmark.pdf

 

Definitely worth downloading the demo. The only caveat I'd add is that the C4D plugin isn't as great as it could be as yet and it's often best to export to Thea Studio for rendering at this stage.

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jonmoore have you downloaded the latest Thea for C4D plugin and tried it in the Darkroom in C4D under Plugins > Thea > Darkroom?

It's got real time updating now.  It's really cool.

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