About resource usage of the different prim types

For me it is not obvious Can you please explain, what you mean by "swapping the edge for the next lesser LOD line" and why the sculptie suffers ?

You have strong and weak lines on a sculpty mesh, building an object which has the strong lines on the edges means it will hold it's LOD better at a distance while the weaker lines crumple to an average between them. A 32x33 mesh's LOD lines go 1 3 2 3 1 in order of strength, 1 being the strongest. Using the 2 line would make the shading more correct.

Excuse my ignorance, since I'm just learning about sculpties.

I'm confused.

The lighting on the sculpty door looks correct to me--it's reflecting light from a source forward and above the door. Can you point out to me where it's incorrect? What am I not seeing? What am I overlooking?

The shading on the door on the left should be the same as the door on the right, as you can see light shading has bled onto the front of the door where there is little or no ambient light source. The edges are sharp, but they look rounded because of this.

Why ?

Lighting is calculated based on vertex normals. For the example shown to work, it would need an alternate face normals based lighting. Think vertex points A-B-C, each has a unique normal, with B's being approximately the midpoint of A and C. Shading based on this gives the rounded look. Face based would just have the two normal angles, A-B and B-C (with face based normals, vertex B has two normals A-B and B-C). This would give the sharp edge shading.

The workaround is just to make sure your texture shows sharp edges to cover the vertex based shading.

The note which i wrote here about vertex lighting is fully decoupled from the topic of this thread. So i moved it to a separate thread:

/8/ee/316183/1.html#post2387898