private void TesselateGeometry(List <UIVertex> verts)
{
Vector2 tessellatedSize = settings.GetSize();
/// Convert the list from triangles to quads to be used by the tesselation
TrianglesToQuads(verts);
//do not tesselate text verts. Text usually is small and has plenty of verts already.
if (myText == null && !DoNotTesselate)
{
// Tesselate quads and apply transformation
int startingVertexCount = verts.Count;
for (int i = 0; i < startingVertexCount; i += 4)
{
ModifyQuad(verts, i, tessellatedSize);
}
// Remove old quads
verts.RemoveRange(0, startingVertexCount);
}
}
private Mesh CreateSphereColliderMesh()
{
Mesh meshie = new Mesh();
Vector3[] Corners = new Vector3[4];
(canvas.transform as RectTransform).GetWorldCorners(Corners);
List <Vector3> verts = new List <Vector3>(Corners);
for (int i = 0; i < verts.Count; i++)
{
verts[i] = settings.transform.worldToLocalMatrix.MultiplyPoint3x4(verts[i]);
}
if (settings.Angle != 0)
{
// Tesselate quads and apply transformation
int startingVertexCount = verts.Count;
for (int i = 0; i < startingVertexCount; i += 4)
{
ModifyQuad(verts, i, settings.GetSize(true));
}
// Remove old quads
verts.RemoveRange(0, startingVertexCount);
//curve verts
float vangle = settings.VerticalAngle;
float cylinder_angle = settings.Angle;
Vector2 canvasSize = (canvas.transform as RectTransform).rect.size;
float radius = settings.GetCyllinderRadiusInCanvasSpace();
//caluclate vertical angle for aspect - consistent mapping
vangle = settings.Angle * (canvasSize.y / canvasSize.x);
//curve the vertices
for (int i = 0; i < verts.Count; i++)
{
float theta = (verts[i].x / canvasSize.x).Remap(-0.5f, 0.5f, (180 - cylinder_angle) / 2.0f - 90, 180 - (180 - cylinder_angle) / 2.0f - 90);
theta *= Mathf.Deg2Rad;
float gamma = (verts[i].y / canvasSize.y).Remap(-0.5f, 0.5f, (180 - vangle) / 2.0f, 180 - (180 - vangle) / 2.0f);
gamma *= Mathf.Deg2Rad;
verts[i] = new Vector3(Mathf.Sin(gamma) * Mathf.Sin(theta) * radius,
-radius * Mathf.Cos(gamma),
Mathf.Sin(gamma) * Mathf.Cos(theta) * radius + -radius);
}
}
meshie.vertices = verts.ToArray();
//create triangles from verts
List <int> tris = new List <int>();
for (int i = 0; i < verts.Count; i += 4)
{
tris.Add(i + 0);
tris.Add(i + 1);
tris.Add(i + 2);
tris.Add(i + 3);
tris.Add(i + 0);
tris.Add(i + 2);
}
meshie.triangles = tris.ToArray();
return(meshie);
}