How to find texture color at 3D location on mesh?

Replies to This Discussion

Permalink Reply by David Rutten on November 23, 2013 at 7:20am

Not with the native components. It is possible to get the closest parameter on a mesh, then evaluate the mesh at that location. However the mesh evaluate component does not output texture coordinates.

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David Rutten

david@mcneel.com

Permalink Reply by Fernando Conti on November 24, 2013 at 9:20am

Okay, thanks.

I would like to do this with VB. I found that I can access the texture coordinates there.

If I find the location of a texture coordinate on the mesh, could I then somehow lookup a color on a location in a 2D image?

Thanks!

Permalink Reply by Alexander Robinson on December 19, 2013 at 6:50pm

When I use mesh eval with a colored mesh I don't get any color coordinates...  does this part of the component work? 

Is there another way to find out what the intermediate value of the mesh color is?

Attachments:

• EvalMeshColor.gh, 105 KB

Permalink Reply by David Rutten on December 20, 2013 at 1:22am

The colour interpolator is hosed for some reason. It's an outstanding bug.

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David Rutten

david@mcneel.com

Permalink Reply by David Rutten on December 20, 2013 at 2:49am

I managed to fix it. It's a bug in the RhinoCommon C++ SDK so it'll start working the next time a Rhino5 Service Release goes out.

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David Rutten

david@mcneel.com

Permalink Reply by Alexander Robinson on December 28, 2013 at 9:58pm

Awesome!  Thanks David.

Permalink Reply by ekaggrat singh kalsi on January 26, 2015 at 6:33pm

it still doesnt work in rhino sr7 . i cant get color values at evaluation point. what am i doing wrong?