whether or not a model of shader with a highlighted edge can be provided?

#1

a model of shader with a highlighted edge :):):slight_smile:

#2

Websearch “glsl wireframe shader”, and a number of hits will come up. For example:

[ul]
[li]glsl-solid-wireframe [/li][li]Easy wireframe display with barycentric coordinates (WebGL DEMO) [/li][li]wireframes in opengl[/li][li]Anti-Aliased grid shader (includes WebGL demo) [/li][/ul]