[thxraph]

@tom : Houaaw. Can I post the renderlinks on the french forum?

It went public... everybody can see it. Since it is good news & publicity for Maxwell, why couldn't you rely the info?

[tom]

Use the last material I posted.

I guess you've shared the Arion material, no?

I think it would be better to use a "normal" tonemapper like Reinhard or linear, so we can have the "same" results.

My buffer is linear and output mapped to sRGB.

About the colors and smokyness, it's pretty much density coeficient related, their might be a mismatch between Arion & Maxwell (in fact, it is more than probable), let's see if you have better results with the last material, but i'm pretty sure it's a matter of settings, not of internal computation.

I can also roughly assume it when I'm sure the computation is not missing something. Just found it suspicious thinking of you've already matched the same look.

The last animation shows that Maxwell, even if awesomly improved (i'd like to stress that!) still have brighter spots that cause some irregularity compaired to Arion.

Missing a couple of expensive hardware makes sense I think. I believe, additional nodes in less price would yield to same perfection.

It is much better, yet not perfect. Don't know how it looks on a long run.

Scroll up and check higher SLs I've sent.

Btw, somebody please change the shape. Dragon started to make no sense to me

@David: Feel free. No fights here

[Aniki]

Btw, somebody please change the shape. Dragon started to make no sense to me

please do so From a technical point of view, I am sure you can setup something more interesting. I just picked it because it was widely available. The choice of the Polyurethane occured as it was the only SSS Preset that was present to Maxwell and Arion btw

Even more Interesting might me Milk and coloured emitters maybe ?

love the latest results with higher SL, Tom. Simply put, brilliant.

I am afraid to ask again, any insights to caustics through dielecs yet ?

cheers

Aniki

[Maximus3D]

Try the classic orangejuice in a glass and/or frosted glass with a straw in test. It should be challenging enough for both engines to render clean within a reasonable amount of time.

/ Magnus

[tom]

I am afraid to ask again, any insights to caustics through dielecs yet ?

No, it's totally something else and nothing related to what we demonstrate here. Actually, what you wonder is not called "caustics through dielectrics" as widely used. More generally, it's "refractive caustics on specular surfaces". Sun caustics seen through a clear window, through a pool surface and so on. If you ask whether we're considering such a solution for the forthcoming update, the answer is no.

[Mihai]

I don't know why this material was made to look like the one in Arion....I think the original Maxwell material looked better Brighter and fuller. Why not try the orange juice preset and just change the roughness? That should give a better idea of how roughness and SSS work together, it should 'light up' inside and along the edges, as well as look almost transparent in the thinner parts. Then match it in Arion (or close to it)....is it that difficult?

[thxraph]

I think Mihai made a point. But the Maxwell's material wasn't made to match the Arion's one, it the other way around.
And i agree with Tom, the dragon is making me sick too

Just a quick note for Tom to be sure it's crystal clear and won't be questioned over and over again: the politic at RC about unbiasedness is just the same as at NL. No round corners to gain speed, quality first, pure unbiasedness, physical correct rendering. As a user i almost feel like it is almost too much sometimes. Fryrender or Arion, just as Maxwell, are not renderers that tries to match the reality using faking solutions. They are light simulators, no compromise (except bounce cropping in Arion, if you want to be picky. that is a GPU limitation, yet 512 is more than enough in 99% of the cases).

Just another one (and last, hopefully) dragon, same scene, another material showing full internal reflections & caustics + SSS.



About the Hardware: a 580GTX with 3GB of ram is 520€, and faster than (at super very least) 3 core7i to render, so the calcul of what is cheaper is quite straight, hardware-wise, without even thinking of the software. Yet is has some limitations, indeed.

The Arion's material shared was intended to match the Maxwell's 2.6 version, not the newer.

I agree with mihai, let's make some orange juice or whatever, then match the settings in Arion, it'll only take some minutes to have a match. Here is a Pomelo juice: http://randomcontrol.com/blog/?p=36



Raph

[Hervé]

pretty nice juice... maybe the meniscus a bit thicker ..?

my0.1

h/

[David Solito]

I am afraid to ask again, any insights to caustics through dielecs yet ?

No, it's totally something else and nothing related to what we demonstrate here. Actually, what you wonder is not called "caustics through dielectrics" as widely used. More generally, it's "refractive caustics on specular surfaces". Sun caustics seen through a clear window, through a pool surface and so on. If you ask whether we're considering such a solution for the forthcoming update, the answer is no.

Thanks Tom.
The confusion seems to be on the forum and in the mind of a large group of user from a long time. I propose to the masters of MR to post a schematic view of the limitation?
I am sure it would help some newbee here and prevent for the same question always being asked. No?
(I can make a schématic draw if I get somes sketches )

[balt]

Let me add an Octane version:



4h of rendertime to s/px 64000 (which is equivalent to maxwell's S/L 32 or so).

Rendered on a GTX590 and 260 system for a total of 1260 CUDA cores.

Cheers

- Balt