public static MeshDraft BaselessPyramid(Vector3 baseCenter, Vector3 apex, float radius, int segments,
bool inverted = false)
{
float segmentAngle = Mathf.PI * 2 / segments * (inverted ? -1 : 1);
float currentAngle = 0f;
var vertices = new Vector3[segments + 1];
vertices[0] = apex;
for (var i = 1; i <= segments; i++)
{
vertices[i] = PTUtils.PointOnCircle3(radius, currentAngle) + baseCenter;
currentAngle += segmentAngle;
}
var draft = new MeshDraft {
name = "BaselessPyramid"
};
for (var i = 1; i < segments; i++)
{
draft.Add(Triangle(vertices[0], vertices[i], vertices[i + 1]));
}
draft.Add(Triangle(vertices[0], vertices[vertices.Length - 1], vertices[1]));
return(draft);
}
public static MeshDraft Cylinder(float radius, int segments, float heignt)
{
float segmentAngle = Mathf.PI * 2 / segments;
float currentAngle = 0f;
var lowerRing = new List <Vector3>(segments);
var upperRing = new List <Vector3>(segments);
for (var i = 0; i < segments; i++)
{
var point = PTUtils.PointOnCircle3(radius, currentAngle);
lowerRing.Add(point - Vector3.up * heignt / 2);
upperRing.Add(point + Vector3.up * heignt / 2);
currentAngle -= segmentAngle;
}
var draft = TriangleFan(lowerRing);
draft.Add(Band(lowerRing, upperRing));
upperRing.Reverse();
draft.Add(TriangleFan(upperRing));
draft.name = "Cylinder";
return(draft);
}
