Texture Mapping

I haven't been able to find methods that might allow me to edit the texture mapping properties of rhino objects.

Am I overlooking something?

Can anyone tell me where to find information on editing the texture mapping properties of an object?

Thank you.

Replies to This Discussion

Permalink Reply by David Rutten on April 27, 2010 at 6:05am

Hi Benjamin,

you haven't found anything because there's nothing to find. Texture mapping is something that Grasshopper currently doesn't do at all.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Benjamin Golder on April 27, 2010 at 6:10am

is there even something in the SDK that I can put into a VB.NET component? I couldn't figure out how to do this with Rhinoscript either.

There's a number of ways one could use grasshopper and VB.NET to assign materials to baked objects, but I can't figure out how to adjust the scale, or orientation for that matter, of their texture maps.

Permalink Reply by David Rutten on April 27, 2010 at 8:05am

Texture mapping is still pretty new to Rhino. I don't think any of it has been wrapped in the DotNET SDKs.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Timothée Raison on April 2, 2013 at 5:26am

hi david,

is there any improvement on that side since Rhino5?

thx for all,

timothée.

Permalink Reply by David Rutten on April 2, 2013 at 5:51am

Don't know, haven't been paying attention to texmapping. I'm sure there has been progress but you'll have to go and see for yourself what methods RhinoCommon now exposes.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Timothée Raison on April 2, 2013 at 5:57am

well, I've seen there's new possibilities for uv mapping within rhino but I was wondering if grasshopper did follow or if there's any improvement on the way?

Permalink Reply by David Rutten on April 2, 2013 at 6:55am

Texture mapping is not high on the list. Some day I'll probably add image and texture tools to GH but it's not going to be soon.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Benjamin Golder on April 2, 2013 at 7:12am

I just saw this come up. I'm very happy to see the TextureMapping Class documentation in RhinoCommon. This is enormously helpful. I haven't used it yet, but the potential makes me happy.

Permalink Reply by Vicente Soler on April 27, 2010 at 9:00am

What exactly are you trying to achieve? Textures are UV mapped by default, maybe you don't need to change the texture mapping.

Permalink Reply by Benjamin Golder on April 27, 2010 at 9:28am

For example: I have a bunch of surfaces, each with a different size. I assign a material to these surfaces. By default, the texture will be scaled to the bounding box of each. If the differences in size are big, then the scale of the texture varies dramatically. How can I ensure a consistent scale for the texture, irrelevant of the size of the object to which it is assigned? Is there a way to set an absolute scale for textures?

Permalink Reply by Vicente Soler on April 27, 2010 at 9:46am

I see. What's the shape of these surfaces? What type of texture mapping you wanted to use? I think that the default UV mapping doesn't allow to change the repeat rate of textures. You'd have to setup a new material for each surface with a different repeat setting on the material. You can create new materials using the SDK and assign them bitmap textures, but i don't know about the repeat value.

If you can get away with it the easiest thing would be to select everything and use box mapping, if your renderer allows use WCS mapping, or use a 3d procedural texture instead of a bitmap.

Permalink Reply by Benjamin Golder on April 28, 2010 at 8:15pm

Can I set texture WCS mapping to "box" for a list of objects using vb.net?