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Scale and clamp DDE blendshape coefficients

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This commit is contained in:
David Rowe 2015-02-24 17:38:20 -08:00
parent e91a28a0a4
commit 7a95ed2baa
1 changed files with 20 additions and 14 deletions
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34
interface/src/devices/DdeFaceTracker.cpp
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@ -183,53 +183,59 @@ void DdeFaceTracker::decodePacket(const QByteArray& buffer) {
// less than this.
// Eye blendshapes
static const float RELAXED_EYE_VALUE = 0.1f;
static const float RELAXED_EYE_VALUE = 0.2f;
static const float EYE_OPEN_SCALE = 4.0f;
static const float EYE_BLINK_SCALE = 2.0f;
float leftEye = packet.expressions[1] - RELAXED_EYE_VALUE;
float rightEye = packet.expressions[0] - RELAXED_EYE_VALUE;
if (leftEye > 0.0f) {
_blendshapeCoefficients[_leftBlinkIndex] = leftEye;
_blendshapeCoefficients[_leftBlinkIndex] = glm::clamp(EYE_BLINK_SCALE * leftEye, 0.0f, 1.0f);
_blendshapeCoefficients[_leftEyeOpenIndex] = 0.0f;
} else {
_blendshapeCoefficients[_leftBlinkIndex] = 0.0f;
_blendshapeCoefficients[_leftEyeOpenIndex] = -leftEye;
_blendshapeCoefficients[_leftEyeOpenIndex] = glm::clamp(EYE_OPEN_SCALE * -leftEye, 0.0f, 1.0f);
}
if (rightEye > 0.0f) {
_blendshapeCoefficients[_rightBlinkIndex] = rightEye;
_blendshapeCoefficients[_rightBlinkIndex] = glm::clamp(EYE_BLINK_SCALE * rightEye, 0.0f, 1.0f);
_blendshapeCoefficients[_rightEyeOpenIndex] = 0.0f;
} else {
_blendshapeCoefficients[_rightBlinkIndex] = 0.0f;
_blendshapeCoefficients[_rightEyeOpenIndex] = -rightEye;
_blendshapeCoefficients[_rightEyeOpenIndex] = glm::clamp(EYE_OPEN_SCALE * -rightEye, 0.0f, 1.0f);
}
// Eyebrow blendshapes
static const float BROW_UP_SCALE = 3.0f;
static const float BROW_DOWN_SCALE = 3.0f;
float browCenter = packet.expressions[17];
float browDelta = packet.expressions[24] - packet.expressions[23];
float browLeft = browCenter - browDelta;
float browRight = browCenter + browDelta;
if (browLeft > 0) {
_blendshapeCoefficients[_browUpLeftIndex] = browLeft;
_blendshapeCoefficients[_browUpLeftIndex] = glm::clamp(BROW_UP_SCALE * browLeft, 0.0f, 1.0f);
_blendshapeCoefficients[_browDownLeftIndex] = 0.0f;
} else {
_blendshapeCoefficients[_browUpLeftIndex] = 0.0f;
_blendshapeCoefficients[_browDownLeftIndex] = -browLeft;
_blendshapeCoefficients[_browDownLeftIndex] = glm::clamp(BROW_DOWN_SCALE * -browLeft, 0.0f, 1.0f);
}
if (browRight > 0) {
_blendshapeCoefficients[_browUpRightIndex] = browRight;
_blendshapeCoefficients[_browUpRightIndex] = glm::clamp(BROW_UP_SCALE * browRight, 0.0f, 1.0f);
_blendshapeCoefficients[_browDownRightIndex] = 0.0f;
} else {
_blendshapeCoefficients[_browUpRightIndex] = 0.0f;
_blendshapeCoefficients[_browDownRightIndex] = -browRight;
_blendshapeCoefficients[_browDownRightIndex] = glm::clamp(BROW_DOWN_SCALE * -browRight, 0.0f, 1.0f);
}
if (browLeft + browRight > 0) {
_blendshapeCoefficients[_browUpCenterIndex] = (browLeft + browRight) / 2.0f;
if (browCenter > 0) {
_blendshapeCoefficients[_browUpCenterIndex] = glm::clamp(BROW_UP_SCALE * browCenter, 0.0f, 1.0f);
} else {
_blendshapeCoefficients[_browUpCenterIndex] = 0.0f;
}
// Mouth blendshapes
_blendshapeCoefficients[_jawOpenIndex] = packet.expressions[21];
_blendshapeCoefficients[_mouthSmileLeftIndex] = packet.expressions[24];
_blendshapeCoefficients[_mouthSmileRightIndex] = packet.expressions[23];
static const float JAW_OPEN_SCALE = 1.4f;
static const float SMILE_SCALE = 2.0f;
_blendshapeCoefficients[_jawOpenIndex] = JAW_OPEN_SCALE * packet.expressions[21];
_blendshapeCoefficients[_mouthSmileLeftIndex] = glm::clamp(SMILE_SCALE * packet.expressions[24], 0.0f, 1.0f);
_blendshapeCoefficients[_mouthSmileRightIndex] = glm::clamp(SMILE_SCALE * packet.expressions[23], 0.0f, 1.0f);
} else {
qDebug() << "[Error] DDE Face Tracker Decode Error";