// We use Update() here, but be aware that unless ARController has been configured to
// execute first (Unity Editor->Edit->Project Settings->Script Execution Order) then
// state produced by this update may lag by one frame.
void Update()
{
// Only query visibility if we are running in the Player.
if (!Application.isPlaying)
{
return;
}
lock (loadLock)
{
//ARController.Log(LogTag + "ARTrackable.Update()");
if (UID == NO_ID)
{
visible = false;
return;
}
if (pluginFunctions == null || !pluginFunctions.IsInited())
{
visible = false;
return;
}
float[] matrixRawArray = new float[16];
visible = pluginFunctions.arwQueryTrackableVisibilityAndTransformation(UID, matrixRawArray);
//ARController.Log(LogTag + "ARTrackable.Update() UID=" + UID + ", visible=" + visible);
if (visible)
{
matrixRawArray[12] *= 0.001f; // Scale the position from artoolkitX units (mm) into Unity units (m).
matrixRawArray[13] *= 0.001f;
matrixRawArray[14] *= 0.001f;
Matrix4x4 matrixRaw = ARUtilityFunctions.MatrixFromFloatArray(matrixRawArray);
//.Log("arwQueryTrackableTransformation(" + UID + ") got matrix: [" + Environment.NewLine + matrixRaw.ToString("F3").Trim() + "]");
// artoolkitX uses right-hand coordinate system where the marker lies in x-y plane with right in direction of +x,
// up in direction of +y, and forward (towards viewer) in direction of +z.
// Need to convert to Unity's left-hand coordinate system where marker lies in x-y plane with right in direction of +x,
// up in direction of +y, and forward (towards viewer) in direction of -z.
transformationMatrix = ARUtilityFunctions.LHMatrixFromRHMatrix(matrixRaw);
}
}
}
