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Display mini tablet only if camera is also looking at the hand

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This commit is contained in:
David Rowe 2018-08-17 16:18:22 +12:00
parent 846f38584f
commit 2c389af751
1 changed files with 23 additions and 21 deletions
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44
scripts/system/tabletRezzer.js
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@ -124,6 +124,29 @@
// #region State Machine ===================================================================================================
function shouldShowProxy(hand) {
// Should show tablet proxy if hand is oriented toward the camera and the camera is oriented toward the proxy tablet.
var pose,
jointIndex,
handPosition,
handOrientation,
cameraToHandDirection;
pose = Controller.getPoseValue(hand === LEFT_HAND ? Controller.Standard.LeftHand : Controller.Standard.RightHand);
if (!pose.valid) {
return false;
}
jointIndex = handJointIndex(hand);
handPosition = Vec3.sum(MyAvatar.position,
Vec3.multiplyQbyV(MyAvatar.orientation, MyAvatar.getAbsoluteJointTranslationInObjectFrame(jointIndex)));
handOrientation = Quat.multiply(MyAvatar.orientation, MyAvatar.getAbsoluteJointRotationInObjectFrame(jointIndex));
cameraToHandDirection = Vec3.normalize(Vec3.subtract(handPosition, Camera.position));
return Vec3.dot(cameraToHandDirection, Quat.getForward(handOrientation)) > MIN_HAND_CAMERA_ANGLE_COS
&& Vec3.dot(cameraToHandDirection, Quat.getForward(Camera.orientation)) > MIN_HAND_CAMERA_ANGLE_COS;
}
function enterProxyHidden() {
if (proxyOverlay) {
Overlays.deleteOverlay(proxyOverlay);
@ -287,27 +310,6 @@
// #region Events ==========================================================================================================
function shouldShowProxy(hand) {
// Should show tablet proxy if hand is oriented towards the camera.
var pose,
jointIndex,
handPosition,
handOrientation;
pose = Controller.getPoseValue(hand === LEFT_HAND ? Controller.Standard.LeftHand : Controller.Standard.RightHand);
if (!pose.valid) {
return false;
}
jointIndex = handJointIndex(hand);
handPosition = Vec3.sum(MyAvatar.position,
Vec3.multiplyQbyV(MyAvatar.orientation, MyAvatar.getAbsoluteJointTranslationInObjectFrame(jointIndex)));
handOrientation = Quat.multiply(MyAvatar.orientation, MyAvatar.getAbsoluteJointRotationInObjectFrame(jointIndex));
return Vec3.dot(Vec3.normalize(Vec3.subtract(handPosition, Camera.position)), Quat.getForward(handOrientation))
> MIN_HAND_CAMERA_ANGLE_COS;
}
function update() {
// Assumes that is HMD.mounted.
updateState();