How can my UV mapping stay the same when I use Quadremesh in Grasshopper

[Shenaia_Turner (Nialedd)]

I want to create a Grasshopper workflow that allows you to input a mesh, reduce and quad-remesh, and then reapply the same UV mapping. I know the mapping will be a bit warped but as long as its close to its approximate position that’s fine. I’m using Nautilus and Human to attempt this on photogrammetry scanned objects but it won’t add the material using the texture mapping.

[Jakob_v_Schirmeister (Jakob von Schirmeister)]

UV_transfer_script_jvs_01.gh (8.5 KB)
dont have time for testing… but something like this - perhaps?

[laurent_delrieu]

Hello

it would have been better if you posted a file.

You missed that the tool output a mesh and not UV coordinates.

This component is an old one, It is better to have this one It will output multiple meshes if there are multiple UV parts.

You can get the UV coordinates with and use these coordinates with Human or the same tools in Nautilus (I must gave it a name like Human)

Here an example with a Brep as there is a seam (useful for texturing !)

UV from mesh to new mesh.gh (16.6 KB)

And if you want to go further look at this.

From procedural texture to image texture (How To)

Here is a way to transform procedural texture to a texture file. In this description a procedural texture is a function that transform a coordinate in euclidean space (X, Y, Z) to a colors (Red, Green, Blue and why not Alpha). Unwrap the object(s) you want to texture, this object could be also an object that is just used as support of UV mapping (used with Texture Matching) [image] 1bis) You can edit the UV map in UV editor in order to optimize the placement of objects. [image] Extract…

[Jakob_v_Schirmeister (Jakob von Schirmeister)]

we do have issues… in the pacific