Are Flat Materials Possible?

I have previously studied A-Frame and I would like to render object meshes using flat materials.
By that I mean I would like the objects to appear like a silhouette or color fill.
I know I can create billboard sprites, but I want to use meshes instead.

How would this effect be achieved?

You could totally do that with unlit material and emissive color (the color will be the same independently of the direction)


Thank you,

It will take me some time to become competent in this framework, but I’m looking forward to building some great things. I’m really enjoying how vibrant and welcoming the community is. In time, I hope to pay it back through contributions of my own.