I am trying to figure what is going on in Vray.
I use Vray a good bit in SketchUp, and have my own generic material for making stylized renders - its a grey with edges on and a bit of dirt.
I am trying to convert solely to Rhino to save some money and it would be super cool if I could model and draft in one eco system.
But I can’t figure why Vray in Rhino is picking up all those extra lines, any help would be great
Someone on Reddit mentioned turning off Isocurves. But same results
This is the Rhino Output
This is my display in Rhino
This is how the surfaces should look (had to Render in SketchUp)
What type of geometry is that? Nurbs or Mesh? In the upper image is that out of VRay or a shaded Rhino view?
The geometry is closed solid polysurface and the upper image is out of Vray
That’s very odd. Is this in Rhino 8 or 7? Can you share the model? The Rhino shaded view looks like clean nurb surfaces, while the shaded rhino view looks to be mesh geometry or mesh that was converted in to polysurfaces.
I just tried it out and it looks totally fine in both Rhino shaded view and VRay. It may be some odd glitch in Rhino 8. Try saving down to Rhino 7 to test (if you can) or open a new file in Rhino 8 and copy the geometry into that file to test. I have found that it sometime resolves odd issues like this.
Did you use the material as the generic override?
I did and also added edges in VRay to test and a Rhino shaded view with edges on. All looked good to me.
Straight from RHino:
VRAY with edges on.
Well, that’s frustrating for me.
I dropped it in a new file, tried in 7, tried a new file in 7 as well.
What a pain
I noticed that the geometry is all blocks. have you tried exploding all of them to see if it’s an issue with how Rhino is reading old block geometry?
Here is a link to my version of the model as well as one with all the blocks exploded. Not sure is will help but try it out.
https://drive.google.com/drive/folders/1DcnKLwJE4NrUAegGBSo27\_78rcmIvc6F?usp=drive\_link
Blocking everything was so the geometry came in as decent groups in SketchUp, as opposed to one giant blob
You are going to have to grant me access
Yup sorry. Just changed the link to share the folder with both files in it. Hope it helps!
I wish there was a way I could compare just the settings between the files, because the worked like a charm
Wait, nevermind - just turned the material on and the lines are back
Did you try to explode the blocks?
Yup, still seeing all the extra edges
Hi @christopher_burkhart ,
There is no easy way to achieve what you’re after using the V-Ray Edges texture in Rhino.
The reason is the specific way 3D objects from Rhino are translated to V-Ray and prepared for rendering.
As part of the scene parsing logic, V-Ray is asking Rhino to mesh all the surfaces in the project as V-Ray can not render them directly.
The resulting mesh is what you see the edges of when rendering.
The Edges texture is simply showing you all mesh edges not marked as hidden (this is an internal flag).
Now, making the “internal” edges hidden sounds like a reasonable thing to do but unfortunately there is no way for us to identify them.
Rhino is not giving us this information.
SketchUp, on the other hand, is letting us know which edges are invisible in the viewport making it possible to use this information when rendering.
One option for you, not currently supported by V-Ray GPU, is using the Outlines.
Unlike the Edges texture, the outlines are generated based on a angle and overlap threshold.
Here’s an example of what the effect looks like:
The Outline material attribute even allows you to change the outline appearance per material:
Regards,
Konstantin
Konstantin. Thanks for jumping in. I didn’t fully understand that christopher was using the edge tex. Is Chaos working on making this function better with nurbs geometry?
The version that worked for me was, as you say, just using the Outlines feature.
Konstantin - thanks I was going bonkers trying to figure this out. I think that work around might work for me, I do like I can control it per material.
I was going to start playing with toon to see if I could make that work for me. (Edit: Just realized toon was dropped in the last couple years)
bmcveigh, I really do appreciate you trying to help
