//execute every frame
void Update()
{
clippingDisabled = maps.GetClippingDisabled();
if (!clippingDisabled)
{
Matrix4x4 cameraInverseMatrix = Camera.main.transform.worldToLocalMatrix;
Vector3 position = cameraInverseMatrix.MultiplyPoint3x4(transform.parent.position);
transform.position = position;
Matrix4x4 matrix = transform.parent.localToWorldMatrix;
Matrix4x4 expectedMatrix = new Matrix4x4();
expectedMatrix = cameraInverseMatrix * matrix;
transform.rotation = expectedMatrix.rotation;
// create plane
plane.SetNormalAndPosition(transform.up, transform.position);
//transfer values from plane to vector4 avec inversion de la normale en z car repère caméra ingversé
Vector4 planeRepresentation = new Vector4(plane.normal.x, plane.normal.y, -plane.normal.z, plane.distance);
// pass vector to shader
maps.SetClippingPlane(planeRepresentation);
}
}