void GenerateVuMarkBorderOutline(VuMarkBehaviour vumarkBehaviour)
{
this.lineRenderer = vumarkBehaviour.GetComponentInChildren <LineRenderer>();
if (this.lineRenderer == null)
{
Debug.Log("<color=green>Existing Line Renderer not found. Creating new one.</color>");
GameObject vumarkBorder = new GameObject("VuMarkBorder");
vumarkBorder.transform.SetParent(vumarkBehaviour.transform);
vumarkBorder.transform.localPosition = Vector3.zero;
vumarkBorder.transform.localEulerAngles = Vector3.zero;
vumarkBorder.transform.localScale =
new Vector3(
1 / vumarkBehaviour.transform.localScale.x,
1,
1 / vumarkBehaviour.transform.localScale.z);
this.lineRenderer = vumarkBorder.AddComponent <LineRenderer>();
this.lineRenderer.enabled = false;
this.lineRenderer.shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.Off;
this.lineRenderer.receiveShadows = false;
// This shader needs to be added in the Project's Graphics Settings,
// unless it is already in use by a Material present in the project.
this.lineRenderer.material.shader = Shader.Find("Unlit/Color");
this.lineRenderer.material.color = Color.clear;
this.lineRenderer.positionCount = 4;
this.lineRenderer.loop = true;
this.lineRenderer.useWorldSpace = false;
Vector2 vumarkSize = vumarkBehaviour.GetSize();
AnimationCurve curve = new AnimationCurve();
curve.AddKey(0.0f, 1.0f);
curve.AddKey(1.0f, 1.0f);
this.lineRenderer.widthCurve = curve;
this.lineRenderer.widthMultiplier = 0.003f;
float vumarkExtentsX = (vumarkSize.x * 0.5f) + (this.lineRenderer.widthMultiplier * 0.5f);
float vumarkExtentsZ = (vumarkSize.y * 0.5f) + (this.lineRenderer.widthMultiplier * 0.5f);
this.lineRenderer.SetPositions(new Vector3[]
{
new Vector3(-vumarkExtentsX, 0.001f, vumarkExtentsZ),
new Vector3(vumarkExtentsX, 0.001f, vumarkExtentsZ),
new Vector3(vumarkExtentsX, 0.001f, -vumarkExtentsZ),
new Vector3(-vumarkExtentsX, 0.001f, -vumarkExtentsZ)
});
}
}
/// <summary>
/// Register a callback which is invoked whenever a VuMark-result is newly detected which was not tracked in the frame before
/// </summary>
/// <param name="vumarkBehaviour"></param>
public void OnVuMarkBehaviourDetected(VuMarkBehaviour vumarkBehaviour)
{
VLog.Log("cyan", "VuMarkHandler.OnVuMarkBehaviourDetected(): " + vumarkBehaviour.TrackableName);
// The GameObject with the VuMarkBehaviour component attached gets duplicated whenever
// a new VuMark is detected and the augmentations get attached to the new object.
// Since this GameObject contains a Canvas, we need to reset the Camera reference when
// duplicating, otherwise the MRTK will throw an exception. The MRTK then assigns the
// appropriate Camera reference to the Canvas.
vumarkBehaviour.GetComponentInChildren <Canvas>().worldCamera = null;
GenerateVuMarkBorderOutline(vumarkBehaviour);
ToggleRenderers(vumarkBehaviour.gameObject, true);
// Check for existance of previous augmentations and delete before instantiating new ones.
DestroyChildAugmentationsOfTransform(vumarkBehaviour.transform);
StartCoroutine(OnVuMarkTargetAvailable(vumarkBehaviour));
}
