How to create a perfect cube without the triangles as seen in documentation

[mohammedzamakhan]

https://plot.ly/javascript/3d-mesh/

I was trying to create a cube using the example in the documentation, but I do not want the triangles like in the example side which uses i, j, k

I want it to look like a cube but just without the sides having two differentiated triangles

[mohammedzamakhan]

@etpinard any help in this?

[etpinard]

Here's perhaps an example better suited for your needs: https://rreusser.github.io/plotly-mock-viewer/#gl3d_cube using scatter3d and surfaceaxis.

Pro tip: please use https://community.plot.ly/c/plotly-js for questions of the likes in the future so that other users can benefits for them. Thank you

[jayhaluska]

Had the some problem. My guess was that it had something to do with the orientation of the triangles.

I played around with the indices of the triangles and now they are gone. My new index values:

    i: [7, 0, 0, 0, 4, 4, 6, 1, 4, 0, 3, 6],
    j: [3, 4, 1, 2, 5, 6, 5, 2, 0, 1, 6, 3],
    k: [0, 7, 2, 3, 6, 7, 1, 6, 5, 5, 7, 2],

Maybe they example in the documentation can be changed to use these indices? I think most users expect a cube without artifacts.

[archmoj]

Please refer to this demo.
cc: @emmanuelle it would be nice to have something similar in our python documentation.

[rben01]

This seems like a bug. Surely, by default, the luminosity of a triangle shouldn't depend on the orientation its vertices are specified in?

[archmoj]

This seems like a bug. Surely, by default, the luminosity of a triangle shouldn't depend on the orientation its vertices are specified in?

@rben01 Have you seen flatshading: true and lighting.facenormalsepsilon: 0 options (both should be set) as illustrated in this demo?

[astroboylrx]

@archmoj the demo you mentioned is a single-color cube. Even with that settings in your comment, a cube with a non-uniform intensity still displays triangles.