How to render wireframe?

[mezmerize]

Hi guys!
I was wondering how to render wireframe in vray for rhino?Any help? It works on C4D or 3DMax but in Rhino..hmmm....I want to get a similar efect:

[dalomar_cg]

Re: How to render wireframe?

That specifically is a V-Ray texture called VRayEdgeTex, which we don't have in VfR yet. The texture itself will render the wires of an underlying mesh and doesn't render the isocurves of a surface, which is more like you'll see in the Rhino viewport. You can use the toon material to do pretty much the same thing. If you're using a surface, just split it with the isocurves. If you're using a mesh just unweld and ungroup all the faces. Apply the toon material to the result in both cases.

[mezmerize]

Re: How to render wireframe?

I am using a surface....what do you mean Split it with isocurves?.. :-[

[dalomar_cg]

Re: How to render wireframe?

If you run the Extract Wireframe command that will add the isocurves of the surface as actual curves to the document. From there you can split the surface with the wireframe you just extracted.

[mezmerize]

Re: How to render wireframe?

but vray doesn't render curves right? so i can do nothing with my wireframe, unless i do a postproduction in photoshop somehow

[Micha_cg]

Re: How to render wireframe?

Damien, couldn't you write a little button script?
I have the feeling, the buttons script could be quite simple.

Here a raw version, but it dosn't work:

_SelNone
_SelSrf
_SelPolySrf
_Invert _-Hide (name)
_selall
_explode
_extractwireframe
_SelNone
_split
_SelSrf
_SelPolySrf
_enter
_selcrv
_enter
_-unhide (name)
_render
_undo until previous state

[dalomar_cg]

Re: How to render wireframe?

I'll just write a full blown script as opposed to trying to do it in macros...those will just mess up half the time anyway...I don't know when I'll actually have the time to do that though cause I'm really busy, so don't hold your breath...If you don't see it in a week give me a little nudge.

[dalomar_cg]

Re: How to render wireframe?

Just took a quick look into this, and it looks as though this is going to be a little harder than it looks. The regular split process in Rhino doesn't seam to actually be splitting everything correctly...This means I'm going to have to manually write a splitting routine that make sure that everything gets split correctly.

Here's an example of how Rhino doesn't split correctly...Make a box and extract the wireframe...grab the box, run the Split command, then grab the extracted wire curves...I'm only getting splits along one direction of each face. The other direction doesn't seam to be splitting at all...This is in SR4b. If you're not seeing this behavior, then let me know.

[dalomar_cg]

Re: How to render wireframe?

Well, I put something together that's a mish-mosh of scripting and macros. It was easier to do it that way then to jump through hoops and try to do it all via scripting. This is a quick version, so it isn't perfect, but it looks like it will work. Its pretty self explanatory, but it splits with the current wireframe settings and then groups all of the pieces that were part of the original object (thus keeping things "tidy"). There's also an option to duplicate the original geometry if you don't want to destroy your geometry

http://www.box.net/shared/m3g05mxsd9

[Micha_cg]

Re: How to render wireframe?

Works great - thank you!

I copy the script to a button and add some commands

! _-Runscript ( 
... Damiens script ...
)
_enter
_render
_undo

Now, if I press the button, the wire rendering is started and anything at the scene is like befor.

EDIT: I don't know why, but my modification dosn't work now.

[Micha_cg]

From an email conversation from me to an user:

"I create the wireframe rendering per Rhino command -ViewCaptureToFile. The small "-" is important, because it open the option dialog for the command. If you need this tool often than here you find a great multiview script (it save the set option for the next usage ...):

http://jarek-rhinoscripts.blogspot.com/

An other way could be to play with a Vray toon material. You could adjust some settings like normal threshold (1 works fine here) in combination with _unweld (0) the mesh before. The basic material of the toon material is with an emitter layer for rendering without shading."