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Fix for vertical pitch offset.

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Also, added hysteresis to the controller selection, to prevent flapping back and forth between controllers when they are at rest.
This commit is contained in:
Anthony J. Thibault 2016-03-09 10:31:58 -08:00
parent 4691ca1716
commit e1a3c5b618
1 changed files with 14 additions and 2 deletions
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16
examples/controllers/handControllerMouse.js
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@ -54,6 +54,7 @@ function debugPrint(message) {
var leftRightBias = 0.0;
var filteredRotatedLeft = Vec3.UNIT_NEG_Y;
var filteredRotatedRight = Vec3.UNIT_NEG_Y;
var lastAlpha = 0;
Script.update.connect(function(deltaTime) {
@ -85,7 +86,18 @@ Script.update.connect(function(deltaTime) {
newLeftRightBias = Vec3.length(poseRight.angularVelocity) - Vec3.length(poseLeft.angularVelocity);
leftRightBias = (1 - tau) * leftRightBias + tau * newLeftRightBias;
}
var alpha = leftRightBias > 0 ? 1 : 0;
// add a bit of hysteresis to prevent control flopping back and forth
// between hands when they are both mostly stationary.
var alpha;
var HYSTERESIS_OFFSET = 0.25;
if (lastAlpha > 0.5) {
// prefer right hand over left
alpha = leftRightBias > -HYSTERESIS_OFFSET ? 1 : 0;
} else {
alpha = leftRightBias > HYSTERESIS_OFFSET ? 1 : 0;
}
lastAlpha = alpha;
// Velocity filter the hand rotation used to position reticle so that it is easier to target small things with the hand controllers
var VELOCITY_FILTER_GAIN = 0.5;
@ -97,7 +109,7 @@ Script.update.connect(function(deltaTime) {
var absoluteYaw = -rotated.x; // from -1 left to 1 right
var x = Math.clamp(screenSizeX * (absoluteYaw + 0.5), 0, screenSizeX);
var y = Math.clamp(screenSizeX * (absolutePitch + 0.5), 0, screenSizeY);
var y = Math.clamp(screenSizeX * absolutePitch, 0, screenSizeY);
// don't move the reticle with the hand controllers unless the controllers are actually being moved
// take a time average of angular velocity, and don't move mouse at all if it's below threshold