Want to ask about new beta release is it far from now ?
Just really want mat editor OR import .mat files from 3dsmax. Can’t render anything complex without materials.
And want to ask about tesselating mesh only once (of course if it’s not changed already), without need to re-tesselate each time I move camera or lights…
New beta release when ?
Paul,
We are not 100% sure when we will have a new build. We are trying to implement a simple material preview to assist users in building materials. To be honest I kind of understand where you are coming from but I am not really sure why you can’t add materials to your scenes. Are you have trouble making materials that look like the materials you make in 3ds max? Are your models a single meshes that need multisub materials?
Granted there is a little labor involved with material application and there are mapping limitations in rhino 3. We’ll do our best to help the situation. But, we are waiting to hear more details about Rhino 4 before jumping inany deeper these limitations we are dealing with.
So, please bear with us. In the meantime we hope to see some of your images with materials applied. It is more than possible to do so.
Best regards,
Corey
New beta release when ?
The tesselation only happens once, it’s the ‘creating render meshes’ message in the rhino status bar. The ‘building scene’ message you see in the render window has something to do with dividing the scene up into a grid or something I think, it’s not tesselating again.
Altough I would like a material preview too, I don’t think it is really crucial for making materials. In max your materials never look like they appear in the mat editor, it depends on so many other scene settings that you will always have to test render. The current material options are so limited that you simply know how it will look like without seeing a preview. (if you’re used to vray for max that is).
What would help a lot is a render region option, so that when you want to test render a certain object in the scene, you don’t need to render the whole image but only a small part of it.
The thing I want a mat editor for, is to be able to assing materials to multiple objects at once. And then you’ll be able to change the material and all objects will reflect these changes.
New beta release when ?
Well… I want to do first render in rhino. I really don’t know the materials I want in that scene. But I think I’ll do smth in max and then will xtrapolate max mat’s to rhino 
BTW - tried smth really complex (4k surfaces) but it was so damn long (approx. 40minutes for VRay to cumpute “rendermesh” or hows it called) so I canceled render…
New beta release when ?
Hi Paul,
Have you used rhino before you started using vray for rhino?
Creating render meshes is necessary to render the rhino nurbs surfaces. Since there are only scene dependant settings for this conversion, you need to be very carefull with these settings, especially on large scenes.
Why don’t you start with something simple instead of scenes with tons of surfaces?
But I have the impression you have to learn some rhino basics before moving on to rendering with vray for rhino. It’s the same in max, if you don’t know max and want to render with vray for max, you also need some basic max knowledge before you can start using vray with it.
New beta release when ?
Hm… 5-years in Rhino -=- is it enough ?
And I know what need to be done to render NURBS! I want to ask - is it Vray tesselates NURBS or Rhino, before render ?
And I did start with simple scene in VR f Rh, you can look at in gallery.
Do you agree, that when you tried smth simple, you need smth more com-plex to try! This is my work. PowerNURBS gets that mesh “eaten” in seconds. So I’m curious - who’s meshing in VR f Rh…
P.S. PowerNURBS is fast. The only it’s benefit
New beta release when ?
Yeah it’s enough 
But it’s a bit weird you are so unfamiliar with the meshing in rhino. With the complex scene with all the surfaces, do you turn on shaded mode for it? Because then rhino will also need to mesh the entire scene (taking up 40 minutes). But once this is done, it doesn’t need to recreate the mesh if you don’t alter the surfaces.
Rhino always needs custom mesh settings, the two presets (jagged & faster and smooth & slower) simply are not good enough. That’s the base of your rendering and directly affects rendertime, the smaller the mesh the smaller the rendertime.
New beta release when ?
Rhino meshes it in seconds! I made some optimizations for shade mesh in viewports! All is fast and perfect!!! But when it comes to render…
Maybe we misunderstand eachother ?
New beta release when ?
So what is taking 40 minutes?
a) the message in rhino status bar: “creating rendering meshes”
b) the message in vray for rhino renderwindow: “building scene…”
New beta release when ?
Oh… let me see… Need to recreate the scene…
Building scene… (as Rhino already got the viewport mesh…)
BTW - do you know, that viewport mesh is stored in Rhino
New beta release when ?
Yes but that’s where the confusion comes from, I thought you were complaining about mesh creation that was taking so long, which would then be a rhino thing and not a vray for rhino.
And want to ask about tesselating mesh only once (of course if it’s not changed already), without need to re-tesselate each time I move camera or lights…
The building scene is not the same as tesselation (I think).
New beta release when ?
This thing I don’t understand. Just curious how’s it work
Well this was a nice conversation
New beta release when ?
Well I also don’t know how it works, but vray for max has similar messages if you render big scenes, but it is usually pretty fast unless you’re using a lot of displacement etc…
New beta release when ?
Yap!!!
New beta release when ?
Paul,
what are your mesh settings in Rhino? I mostly start with all values set to 0, then only fill in the max. dist. edge to srf. The jagged and faster /smooth and slower don’t work most of the time and are always slower than the manual settings.
New beta release when ?
You should be using the defaults settings and then tweak based on how tight/small your fillets and edges are, at least this is what I do…
/BlueShift
New beta release when ?
I’m not the new one to Rhino. . .
Can you tell me how’s Vr f Rh tesselation work?
New beta release when ?
There is no vray for rhino tesselation. Tesselation is based on the rhino settings, it has nothing to do with vray.
New beta release when ?
If it’s based on Rhino settings . . . > tesselation is based on - you mean vray tesselates NURBS anyway ?
We need developers say smth.
New beta release when ?
Ok I’m really not following anymore.
Let’s say you install rhino without any plugin. You draw some objects and you turn on shaded mode. Rhino now converts the nurbs into polygons (the collection of polygons is called a ‘mesh’). The conversion from nurbs to mesh is called ‘tesselation’. When you hit render, rhino uses this same mesh from your viewport to render the image. When you save, the mesh is stored in the file. (except when you hit ‘save small’)
Now you install for example a render plugin, for example flamingo. Flamingo also uses this mesh for its rendering process. The mesh creation is a rhino setting, it is not related to whatever render plugin you may have installed.
Same for vray for rhino. The render mesh is the same as in example 1, there is no special vray for rhino mesh, vray uses the mesh created by rhino to render. So you set your tesselation settings in the rhino properties, there are no vray settings for tesselation!
Between the mesh creation and the actual rendering, something else is happening, which is displayed by the ‘building scene’ message in the render window status bar. This is an optimisation to speed up rendering. It divides the scene into regions of x amount of polygons and all kinds of other stuff so that rendering can start as efficient as possible (to figure out which parts of the scene contains the most ploygons, or to see which objects get blocked in view by others, etc…). This process van take some time and it takes longer of course if your scene contains more surfaces.
That’s why the mesh settings are so important.
Sorry if you knew all this already, the main point is that there is no vray tesselation going on. I guess all this is just a confusion of terms (tesselation/mesh/building scene/…)