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AutoBone: Use error derivative and add more foot offsets

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This commit is contained in:
ButterscotchVanilla
2021-08-16 18:13:09 -04:00
parent 70f5228d1c
commit f835eeecdd
1 changed files with 32 additions and 16 deletions
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48
src/main/java/io/eiren/gui/autobone/AutoBone.java
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@@ -277,7 +277,7 @@ public class AutoBone {
// Try positive and negative adjustments
boolean isHeightVar = heightConfigs.contains(entry.getKey());
float minError = error;
float minError = errorDeriv;
float finalNewLength = -1f;
for (int i = 0; i < 2; i++) {
// Scale by the ratio for smooth adjustment and more stable results
@@ -292,10 +292,10 @@ public class AutoBone {
updateSkeletonBoneLength(skeleton1, skeleton2, entry.getKey(), newLength);
float newHeight = isHeightVar ? curHeight + curAdjustVal : curHeight;
float newError = errorFunc(getErrorDeriv(skeleton1, skeleton2, targetHeight - newHeight));
float newErrorDeriv = getErrorDeriv(skeleton1, skeleton2, targetHeight - newHeight);
if (newError < minError) {
minError = newError;
if (newErrorDeriv < minError) {
minError = newErrorDeriv;
finalNewLength = newLength;
}
}
@@ -328,23 +328,39 @@ public class AutoBone {
}
protected float getErrorDeriv(SimpleSkeleton skeleton1, SimpleSkeleton skeleton2, float heightChange) {
float slideLeft = skeleton1.getLeftFootPos().distance(skeleton2.getLeftFootPos());
float slideRight = skeleton1.getRightFootPos().distance(skeleton2.getRightFootPos());
float totalError = 0f;
float sumWeight = 0f;
// Averaged error
float slideError = (slideLeft + slideRight) / 2f;
if (slideErrorFactor > 0f) {
float slideLeft = skeleton1.getLeftFootPos().distance(skeleton2.getLeftFootPos());
float slideRight = skeleton1.getRightFootPos().distance(skeleton2.getRightFootPos());
float dist1 = skeleton1.getLeftFootPos().y - skeleton1.getRightFootPos().y;
float dist2 = skeleton2.getLeftFootPos().y - skeleton2.getRightFootPos().y;
totalError += Math.abs((slideLeft + slideRight) / 2f) * slideErrorFactor;
sumWeight += slideErrorFactor;
}
// Averaged error
float distError = (dist1 + dist2) / 2f;
if (offsetErrorFactor > 0f) {
float dist1 = skeleton1.getLeftFootPos().y - skeleton1.getRightFootPos().y;
float dist2 = skeleton2.getLeftFootPos().y - skeleton2.getRightFootPos().y;
float dist3 = skeleton1.getLeftFootPos().y - skeleton2.getRightFootPos().y;
float dist4 = skeleton1.getLeftFootPos().y - skeleton2.getRightFootPos().y;
float dist5 = skeleton1.getLeftFootPos().y - skeleton2.getLeftFootPos().y;
float dist6 = skeleton1.getRightFootPos().y - skeleton2.getRightFootPos().y;
// Averaged error
totalError += Math.abs((dist1 + dist2 + dist3 + dist4 + dist5 + dist6) / 6f) * offsetErrorFactor;
sumWeight += offsetErrorFactor;
}
if (heightErrorFactor > 0f) {
totalError += Math.abs(heightChange) * heightErrorFactor;
sumWeight += heightErrorFactor;
}
// Minimize sliding, minimize foot height offset, minimize change in total height
return ((slideErrorFactor * Math.abs(slideError)) +
(offsetErrorFactor * Math.abs(distError)) +
(heightErrorFactor * Math.abs(heightChange))) /
(slideErrorFactor + offsetErrorFactor + heightErrorFactor);
return sumWeight > 0f ? totalError / sumWeight : 0f;
}
// Mean square error function