I’m trying to use a sphere as my “world container” (the camera will be inside of it) and I want to have this sphere look like a glowing spherical cage. As I was thinking about it the most simple way seemed to create a sphere, activate wireframe and color it using emisive color but that doesn’t seems to be possible.
The glow layer does not work on wireframe geometries.
You can try something like this, which draws the edges of each triangles through a custom vertex/shader and makes the edge thickness pulsates over time:
is very important, as it ensures that each triangle has its 3 own vertices and that no vertex are shared by triangles. You need this because each vertex of a triangle has a new attribute barycentric that can’t be shared because its value may be different for two vertices at the same location if they are not in the same triangle.