detecting outermost parts of an object

Questions & Answers
1

for example: what do you think would be the way to detect cube's corners? or edges.

are you able to think of a way?

thanks for sharing, in advance.

2

What you will probably need to do is to simply loop through the vertices looking for the max and the min values for each of the three axes.

Vector3 maxX = Vector3.zero;
Vector3 minX = Vector3.zero;
Vector3 maxy = Vector3.zero;
Vector3 miny = Vector3.zero;
Vector3 maxz = Vector3.zero;
Vector3 minz = Vector3.zero;
foreach (Vector3 vertex in someMesh) {
    if (vertex.x > maxX.x) {
        maxX = vertex;
    }
    if (vertex.x < minX.x) {
        minX= vertex;
    }
    if (vertex.y > maxy.y) {
        maxy = vertex;
    }
    if (vertex.y < miny.x) {
        miny = vertex;
    }
    if (vertex.z > maxz.z) {
        maxz = vertex;
    }
    if (vertex.z < minz.z) {
        minz = vertex;
    }
}