/// <summary>
/// Perform a Unity Graphics Raycast to determine which uGUI element is currently being gazed at, if any.
/// </summary>
/// <param name="pointerData"></param>
/// <param name="prioritizedLayerMasks"></param>
private void RaycastGraphics(PointerData pointerData, LayerMask[] prioritizedLayerMasks)
{
Debug.Assert(UIRaycastCamera != null, "Missing UIRaycastCamera!");
RaycastResult raycastResult = default;
bool overridePhysicsRaycast = false;
RayStep rayStep = default;
int rayStepIndex = 0;
if (pointerData.Pointer.Rays == null)
{
Debug.LogError($"No valid rays for {pointerData.Pointer.PointerName} pointer.");
return;
}
if (pointerData.Pointer.Rays.Length <= 0)
{
Debug.LogError($"No valid rays for {pointerData.Pointer.PointerName} pointer");
return;
}
// Cast rays for every step until we score a hit
for (int i = 0; i < pointerData.Pointer.Rays.Length; i++)
{
if (RaycastGraphicsStep(pointerData, pointerData.Pointer.Rays[i], prioritizedLayerMasks, out overridePhysicsRaycast, out raycastResult))
{
rayStepIndex = i;
rayStep = pointerData.Pointer.Rays[i];
break;
}
}
// Check if we need to overwrite the physics raycast info
if ((pointerData.CurrentPointerTarget == null || overridePhysicsRaycast) && raycastResult.isValid &&
raycastResult.module != null && raycastResult.module.eventCamera == UIRaycastCamera)
{
newUiRaycastPosition.x = raycastResult.screenPosition.x;
newUiRaycastPosition.y = raycastResult.screenPosition.y;
newUiRaycastPosition.z = raycastResult.distance;
Vector3 worldPos = UIRaycastCamera.ScreenToWorldPoint(newUiRaycastPosition);
var hitInfo = new RaycastHit
{
point = worldPos,
normal = -raycastResult.gameObject.transform.forward
};
pointerData.UpdateHit(raycastResult, hitInfo, rayStep, rayStepIndex);
}
}
/// <summary>
/// Perform a Unity Graphics Raycast to determine which uGUI element is currently being gazed at, if any.
/// </summary>
/// <param name="pointer"></param>
/// <param name="graphicEventData"></param>
/// <param name="prioritizedLayerMasks"></param>
/// <param name="hitResult"></param>
private void RaycastGraphics(IMixedRealityPointer pointer, PointerEventData graphicEventData, LayerMask[] prioritizedLayerMasks, PointerHitResult hitResult)
{
Debug.Assert(UIRaycastCamera != null, "Missing UIRaycastCamera!");
if (!UIRaycastCamera.nearClipPlane.Equals(0.01f))
{
UIRaycastCamera.nearClipPlane = 0.01f;
}
if (pointer.Rays == null)
{
Debug.LogError($"No valid rays for {pointer.PointerName} pointer.");
return;
}
if (pointer.Rays.Length <= 0)
{
Debug.LogError($"No valid rays for {pointer.PointerName} pointer");
return;
}
// Cast rays for every step until we score a hit
float totalDistance = 0.0f;
for (int i = 0; i < pointer.Rays.Length; i++)
{
if (RaycastGraphicsStep(graphicEventData, pointer.Rays[i], prioritizedLayerMasks, out var raycastResult))
{
if (raycastResult.isValid &&
raycastResult.distance < pointer.Rays[i].Length &&
raycastResult.module != null &&
raycastResult.module.eventCamera == UIRaycastCamera)
{
totalDistance += raycastResult.distance;
newUiRaycastPosition.x = raycastResult.screenPosition.x;
newUiRaycastPosition.y = raycastResult.screenPosition.y;
newUiRaycastPosition.z = raycastResult.distance;
var worldPos = UIRaycastCamera.ScreenToWorldPoint(newUiRaycastPosition);
var normal = -raycastResult.gameObject.transform.forward;
hitResult.Set(raycastResult, worldPos, normal, pointer.Rays[i], i, totalDistance);
return;
}
}
totalDistance += pointer.Rays[i].Length;
}
}
/// <summary>
/// Perform a Unity Graphics Raycast to determine which uGUI element is currently being gazed at, if any.
/// </summary>
/// <param name="pointer"></param>
/// <param name="prioritizedLayerMasks"></param>
private void RaycastGraphics(PointerData pointer, LayerMask[] prioritizedLayerMasks)
{
Debug.Assert(pointer.Details.Point != Vector3.zero, "Invalid pointer source start point found to raycast from!");
Debug.Assert(UIRaycastCamera != null, "You must assign a UIRaycastCamera on the FocusProvider before you can process uGUI raycasting.");
RaycastResult raycastResult = default(RaycastResult);
bool overridePhysicsRaycast = false;
RayStep rayStep = default(RayStep);
int rayStepIndex = 0;
Debug.Assert(pointer.Pointer.Rays != null, "No valid rays for pointer");
Debug.Assert(pointer.Pointer.Rays.Length > 0, "No valid rays for pointer");
// Cast rays for every step until we score a hit
for (int i = 0; i < pointer.Pointer.Rays.Length; i++)
{
if (RaycastGraphicsStep(pointer, pointer.Pointer.Rays[i], prioritizedLayerMasks, out overridePhysicsRaycast, out raycastResult))
{
rayStepIndex = i;
rayStep = pointer.Pointer.Rays[i];
break;
}
}
// Check if we need to overwrite the physics raycast info
if ((pointer.CurrentPointerTarget == null || overridePhysicsRaycast) && raycastResult.isValid &&
raycastResult.module != null && raycastResult.module.eventCamera == UIRaycastCamera)
{
newUiRaycastPosition.x = raycastResult.screenPosition.x;
newUiRaycastPosition.y = raycastResult.screenPosition.y;
newUiRaycastPosition.z = raycastResult.distance;
Vector3 worldPos = UIRaycastCamera.ScreenToWorldPoint(newUiRaycastPosition);
var hitInfo = new RaycastHit
{
point = worldPos,
normal = -raycastResult.gameObject.transform.forward
};
pointer.UpdateHit(raycastResult, hitInfo, rayStep, rayStepIndex);
}
}