private bool CheckGraphicAddedToRaycastGraphicRegistry()
{
var graphicList = GraphicRegistry.GetRaycastableGraphicsForCanvas(m_canvas);
var graphicListSize = graphicList.Count;
return(ContainsGraphic(graphicList, graphicListSize, m_graphic));
}
/// <summary>
/// Changes - ignore displays. Improved Performance : no need to sort graphics only, we can sort all raycast once.
/// </summary>
/// <param name="canvasIn"></param>
/// <param name="eventCameraIn"></param>
/// <param name="eventData"></param>
/// <param name="ray"></param>
/// <param name="helperList"></param>
protected virtual void Raycast(Canvas canvasIn, Camera eventCameraIn, PointerEventData eventData, Ray ray,
ref List <RaycastResult> helperList)
{
// bool checkRaycastGraphic = false;
float hitDistance = GetHitDistance(ray, VRTK4_UIPointer.GetPointerLength(eventData.pointerId));
IList <Graphic> canvasGraphics = null;
#if UNITY_2020_3_OR_NEWER
canvasGraphics = GraphicRegistry.GetRaycastableGraphicsForCanvas(canvasIn);
#else
canvasGraphics = GraphicRegistry.GetGraphicsForCanvas(canvasIn);
#endif
int totalCount = canvasGraphics.Count;
for (int i = 0; i < totalCount; ++i)
{
Graphic graphic = canvasGraphics[i];
if (graphic.depth == -1 || !graphic.raycastTarget || graphic.canvasRenderer.cull)
{
continue;
}
Transform graphicTransform = graphic.transform;
Vector3 graphicForward = graphicTransform.forward;
float distance = Vector3.Dot(graphicForward, graphicTransform.position - ray.origin) /
Vector3.Dot(graphicForward, ray.direction);
if (distance < 0)
{
continue;
}
//Prevents "flickering hover" on items near canvas center.
if ((distance - UI_CONTROL_OFFSET) > hitDistance)
{
continue;
}
Vector3 position = ray.GetPoint(distance);
Vector2 pointerPosition = eventCameraIn.WorldToScreenPoint(position);
#if UNITY_2020_3_OR_NEWER
if (!RectTransformUtility.RectangleContainsScreenPoint(
graphic.rectTransform,
pointerPosition,
eventCameraIn, graphic.raycastPadding))
{
continue;
}
#else
if (!RectTransformUtility.RectangleContainsScreenPoint(
graphic.rectTransform,
pointerPosition,
eventCameraIn))
{
continue;
}
#endif
if (graphic.Raycast(pointerPosition, eventCameraIn))
{
RaycastResult result = new RaycastResult()
{
gameObject = graphic.gameObject,
module = this,
distance = distance,
worldPosition = position,
worldNormal = -graphicForward,
screenPosition = pointerPosition,
depth = graphic.depth + canvasIn.sortingLayerID * 1000 + canvasIn.sortingOrder,
sortingLayer = canvasIn.sortingLayerID,
sortingOrder = canvasIn.sortingOrder,
};
VRTK4_SharedMethods.AddListValue(helperList, result);
}
}
helperList.Sort(ComparisonInversed);
}