int findClosestVertexToMouse(MeshDeformer mesh, Camera cam)
{
Ray cameraRay = mainCamera.ScreenPointToRay(curMousePosition);
Vector3 start = filter.transform.InverseTransformPoint(cameraRay.origin);
Vector3 end = filter.transform.InverseTransformPoint(cameraRay.origin + (cameraRay.direction * mainCamera.farClipPlane));
int closestVertex = -1; float closestSqrDistance = 100000.0f;
for (int i = 0; i < calibrationMesh.distortedMeshVertices.Length; i++)
{
float currentSqrDistance = SqrDistanceToSegment(calibrationMesh.distortedMeshVertices[i], start, end);
if (currentSqrDistance < closestSqrDistance)
{
closestVertex = i;
closestSqrDistance = currentSqrDistance;
}
}
return(closestVertex);
}