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The Faceshift eye rotations are indeed relative to the head.

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This commit is contained in:
Andrzej Kapolka 2013-11-04 10:57:29 -08:00
parent 65907a75a3
commit ce1ebf8d11
1 changed files with 9 additions and 8 deletions
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17
interface/src/devices/Faceshift.cpp
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@ -63,22 +63,23 @@ void Faceshift::update() {
if (!isActive()) { if (!isActive()) {
return; return;
} }
float averageEyePitch = (_eyeGazeLeftPitch + _eyeGazeRightPitch) / 2.0f; // get the euler angles relative to the window
float averageEyeYaw = (_eyeGazeLeftYaw + _eyeGazeRightYaw) / 2.0f; glm::vec3 eulers = safeEulerAngles(_headRotation * glm::quat(glm::radians(glm::vec3(
(_eyeGazeLeftPitch + _eyeGazeRightPitch) / 2.0f, (_eyeGazeLeftYaw + _eyeGazeRightYaw) / 2.0f, 0.0f))));
// compute and subtract the long term average // compute and subtract the long term average
const float LONG_TERM_AVERAGE_SMOOTHING = 0.999f; const float LONG_TERM_AVERAGE_SMOOTHING = 0.999f;
if (!_longTermAverageInitialized) { if (!_longTermAverageInitialized) {
_longTermAverageEyePitch = averageEyePitch; _longTermAverageEyePitch = eulers.x;
_longTermAverageEyeYaw = averageEyeYaw; _longTermAverageEyeYaw = eulers.y;
_longTermAverageInitialized = true; _longTermAverageInitialized = true;
} else { } else {
_longTermAverageEyePitch = glm::mix(averageEyePitch, _longTermAverageEyePitch, LONG_TERM_AVERAGE_SMOOTHING); _longTermAverageEyePitch = glm::mix(eulers.x, _longTermAverageEyePitch, LONG_TERM_AVERAGE_SMOOTHING);
_longTermAverageEyeYaw = glm::mix(averageEyeYaw, _longTermAverageEyeYaw, LONG_TERM_AVERAGE_SMOOTHING); _longTermAverageEyeYaw = glm::mix(eulers.y, _longTermAverageEyeYaw, LONG_TERM_AVERAGE_SMOOTHING);
} }
_estimatedEyePitch = averageEyePitch - _longTermAverageEyePitch; _estimatedEyePitch = eulers.x - _longTermAverageEyePitch;
_estimatedEyeYaw = averageEyeYaw - _longTermAverageEyeYaw; _estimatedEyeYaw = eulers.y - _longTermAverageEyeYaw;
} }
void Faceshift::reset() { void Faceshift::reset() {