Important V-Ray 1.5 announcement

[Geddart]

I think we should let them work now. They have a Lot to do for 1.5 and we all want they make it on time right?

[vlado]

thx for the comparisons.

which settings are used for:

- first bounce (1.0)
- second bounce (0.5)

then... is there any rule for the materials:
- diffuse color 50-70% brightness (like diffuse bounce of a material 50-70%)

what if i want to use caustics:
-there are many many different caustic multiplierer in the light, lightoverride(vray-system panel) and in the caustics panel.
Is there any rule for caustics that a can archive a valid reflection of light?

Vlado, what do you think about a global switch which overrides all that different settings with correct settings?

The physically correct setting for GI is to set both the primary and secondary multipliers at 1.0 (these will be the default settings for the new builds). However, the irradiance map alone limits the light bounces and so can't produce the correct lighting in the scene by itself. The lightmap works with infinite light bounces and therefore converges to the true lighting solution. The diffuse color of a material directly determines the amount of light it reflects.

Caustics are somewhat more complicated, since VRay will not generate proper caustics for photometric lights (it will not take in account the distribution of those lights). As a general rule, you will get correct results if you leave all mutlipliers to 1.0.

Best regards,
Vlado

[Dschaga]

ok.
I've better wait until we all have the new vray for checking it out


Thank you, Vlado!

[tom schuelke]

Hallo Vlado

I am still not sure, the settings of 1 and 1 would realy lead to physical corect immages, thinking of physical behaviors.

of several reasons.

first, usual lightusage in Max and vray ignores physical correct parameters like lux, lumen when you use standart lights. So when there aren´t correct input parameters, you may get physical correct light distributin with unrealistic light sources. It looks perfect but doesn´t tell you anything useful, thinking of physical parameters , for example a light planer would need.

secound, I am not sure, the rgb colors do lead to a physical right "reflection scale". This is the reason, why max supports a radiosity override material, that makes it possible, to overwrite the incorrect reflectionscale settings, max would have using only rgb colors. I would love to see something like that in later vray builds by the way .

nevertheless also the override material of max doesnt come to physical correct results, because, radiosity only supports perfect diffuse light reflections, while in realworld, lightreflections usualy are a mix of diffus and specular reflections. ´

Well, also if we could use physical perfect algorithms, that would support each and every physical phrnomenon of realworld, if we still didnt have the physical correct parameters of the lights, and of the material, we still would come to wrong results. So our aim right now should be to get brilliant correct looking and impressing immages, that can give us an idea of the way it will look like. And with this, vray is very very good and fast. it doesn´t matter if it is physical correct. I dont think there is any renderer that produces such images. untill now. but we will see

Tom

[cocolas]

I agree w/ Tom. Right now the important thing is not perfect physically accurate lighting........as he said there is way too many factors that go into that for it to be "perfectly" accurate......and quite honestly it doesn't really matter.........

the key at this point is to get impressing images/animations that simulate real life lighting...and easy to work with shaders (which vray still needs work on)......but I think vray has achived the quality and speed that many of us are looking for..especially with tight production deadlines....

paul.

[TJE]

I just love following this thread...

Oh, did I mention that I was not among the special chosen ones that get to test the new build. Then again, we only bought 8 advanced licences...

[vlado]

I just love following this thread...

Oh, did I mention that I was not among the special chosen ones that get to test the new build. Then again, we only bought 8 advanced licences...

There's no need to grumble about that; almost no-one got it. It's a work in progress and we don't want to create wrong impressions with something that is still being worked upon. You will have a chance to see it in a little while, when things are in a more finished state.

Best regards,
Vlado

[TJE]

Fair enought, Vlado. But when Peter announces it like that, there will always be a lot of people that feels left out when reading this thread.

Perhaps next time you should just contact the few ones you want betatesting instead.

I'll quit now... ...just blowing steam from anticipation.

[mike_kennedy]

I don't feel bitter, after hearing about allusion about the internal build being given to pirates by a "tester", I understand thier reluctance to giving out secret kinda code to any one who hasn't signed their life away via an NDA.

Takes one rotten apple to ruin it....... hope they get karmic payback...

[MATT_CLATWORTHY]

hey, I have a question about the stand alone version of vray.

will it support nurbs? so models created in rhino3D would beable to use it

[cpnichols]

After V-Ray 1.5 is released, we will continue adding extensions to the basic core such as additional geometric primitives (render-time meshsmooth'd geometry), shaders etc.

There is your answer, geometric primitives would imply that pixel smooth subD's and nurbs would be developed... but it looks like it will happen after 1.5

[Intenzity]

I was wondering, being that 1.5 is a very big release will there be a price increase. I know for existing owners it will be free, but for more licenses or new buyers will the price increase. (Not that it really matters too much I am just curious. For what Vray has done and the core group it definitely is worth the money.)

-Andrew

[pengo]

Is there somethig news about the release of 1.5 version?



Is there somethig news about the release of 1.5 version?

excuse me but I love this package ans so.........................

I'm little impatient

[Da_elf]

well. since he said that it would be released in May. which doesnt start till tomorow. I guess it doesnt make sence asking till...well....tomorow hhehe. then we can bug the hell out of them kidding

[gafl]

The 1.5 won't be there before june or july...
Yes, I know, it's a bad news, but there are so many bugs to fix and
over all, it is funny to be awaited !!!!

Ah Ah Ah Ah !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Gaël