Grasshopper

algorithmic modeling for Rhino

Mesh colouring

Hi all,

I'm trying to colour a mesh depending on the height on the mesh.

My way was to explode the mesh into faces, get the centre point and make the gradient from that way.

However, I need a closed mesh at the end of the it and when I take it into rhino and join the faces together, they obviously all lose there colour.

Views: 1374

Replies to This Discussion

Permalink Reply by David Rutten on October 26, 2016 at 3:03pm

Colours are assigned to vertices, not faces. So I think you're better off just extracting the z coordinate of each vertex and using that as a gradient parameter.

Permalink Reply by David Rutten on October 26, 2016 at 3:21pm

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Permalink Reply by James on October 27, 2016 at 2:46am

Thanks David, works well!

I have a thickened mesh and it doesn't seem to colour the underneath?

Permalink Reply by James on October 27, 2016 at 3:15am

I just removed the dot product and it seemed to work that way.

Thanks again

Permalink Reply by David Rutten on October 27, 2016 at 3:38am

Yeah the dot product simulates lighting, so the underside would have been in total shade.

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