PLY list of indices for face is not supported?

[ComicAddict]

When a PLY file with list of vertex indices as for defining a face is fed for the online demo I get the following error:

The header of the file is the following:

ply
format binary_little_endian 1.0
element vertex 10
property double x
property double y
property double z
property uchar r
property uchar g
property uchar b
element edge 2
property int vertex1
property int vertex2
property double w1
property double w2
element face 10
property list int int vertex_index
property uchar red
property uchar green
property uchar blue
property double v
end_header

Same file can is readable with both Blender and MeshLab.

[slimbuck]

Hi @ComicAddict ,

Model-viewer currently supports PLY files containing 3d gaussian splatting scenes only.

For models we generally rely on glb/gltf.

May I ask why you're using PLY for meshes? We've not had a request to support PLY meshes before.

Thanks!

[ComicAddict]

Hi @slimbuck ,

I was checking out all the possible PLY viewers to see if there are some tools that can view the custom attributes. I have PLY files with custom per vertex, per face and per edge information. Are there any other file format that can support per face and per edge custom data?

[slimbuck]

Yes PLY is perfect for custom data and the only format I know of that supports this.

How would you expect the viewer to display the custom data? Show the values in a table or actually render the data on the 3d viewport?

[ComicAddict]

Overlaying text on top of the geometric element(vertex, edge, face) like how Blender is doing with geometry node viewer node:

but if the dimensions of data is known we can display them as colours and choose which attribute to view at the moment with UI elements.