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Fixed alpha and RGB timeline flicker.

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closes EsotericSoftware/spine-editor#931
This commit is contained in:
Nathan Sweet 2026-03-09 15:34:01 -04:00
parent 3789ec027d
commit 8943c84d87
1 changed files with 73 additions and 58 deletions
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131
spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Animation.java
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@ -987,8 +987,8 @@ public class Animation {
}
protected void apply (Slot slot, SlotPose pose, float time, float alpha, MixBlend blend) {
float[] frames = this.frames;
Color color = pose.color;
float[] frames = this.frames;
if (time < frames[0]) {
Color setup = slot.data.setup.color;
switch (blend) {
@ -1031,8 +1031,12 @@ public class Animation {
if (alpha == 1)
color.set(r, g, b, a);
else {
if (blend == setup) color.set(slot.data.setup.color);
color.add((r - color.r) * alpha, (g - color.g) * alpha, (b - color.b) * alpha, (a - color.a) * alpha);
if (blend == setup) {
Color setup = slot.data.setup.color;
color.set(setup.r + (r - setup.r) * alpha, setup.g + (g - setup.g) * alpha, setup.b + (b - setup.b) * alpha,
setup.a + (a - setup.a) * alpha);
} else
color.add((r - color.r) * alpha, (g - color.g) * alpha, (b - color.b) * alpha, (a - color.a) * alpha);
}
}
}
@ -1062,8 +1066,9 @@ public class Animation {
}
protected void apply (Slot slot, SlotPose pose, float time, float alpha, MixBlend blend) {
float[] frames = this.frames;
Color color = pose.color;
float r, g, b;
float[] frames = this.frames;
if (time < frames[0]) {
Color setup = slot.data.setup.color;
switch (blend) {
@ -1071,56 +1076,58 @@ public class Animation {
color.r = setup.r;
color.g = setup.g;
color.b = setup.b;
return;
}
case first -> {
color.r += (setup.r - color.r) * alpha;
color.g += (setup.g - color.g) * alpha;
color.b += (setup.b - color.b) * alpha;
r = color.r + (setup.r - color.r) * alpha;
g = color.g + (setup.g - color.g) * alpha;
b = color.b + (setup.b - color.b) * alpha;
}
default -> {
return;
}
}
return;
}
float r, g, b;
int i = search(frames, time, ENTRIES), curveType = (int)curves[i >> 2];
switch (curveType) {
case LINEAR -> {
float before = frames[i];
r = frames[i + R];
g = frames[i + G];
b = frames[i + B];
float t = (time - before) / (frames[i + ENTRIES] - before);
r += (frames[i + ENTRIES + R] - r) * t;
g += (frames[i + ENTRIES + G] - g) * t;
b += (frames[i + ENTRIES + B] - b) * t;
}
case STEPPED -> {
r = frames[i + R];
g = frames[i + G];
b = frames[i + B];
}
default -> {
r = getBezierValue(time, i, R, curveType - BEZIER);
g = getBezierValue(time, i, G, curveType + BEZIER_SIZE - BEZIER);
b = getBezierValue(time, i, B, curveType + BEZIER_SIZE * 2 - BEZIER);
}
}
if (alpha == 1) {
color.r = r;
color.g = g;
color.b = b;
} else {
if (blend == setup) {
Color setup = slot.data.setup.color;
color.r = setup.r;
color.g = setup.g;
color.b = setup.b;
int i = search(frames, time, ENTRIES), curveType = (int)curves[i >> 2];
switch (curveType) {
case LINEAR -> {
float before = frames[i];
r = frames[i + R];
g = frames[i + G];
b = frames[i + B];
float t = (time - before) / (frames[i + ENTRIES] - before);
r += (frames[i + ENTRIES + R] - r) * t;
g += (frames[i + ENTRIES + G] - g) * t;
b += (frames[i + ENTRIES + B] - b) * t;
}
case STEPPED -> {
r = frames[i + R];
g = frames[i + G];
b = frames[i + B];
}
default -> {
r = getBezierValue(time, i, R, curveType - BEZIER);
g = getBezierValue(time, i, G, curveType + BEZIER_SIZE - BEZIER);
b = getBezierValue(time, i, B, curveType + BEZIER_SIZE * 2 - BEZIER);
}
}
if (alpha != 1) {
if (blend == setup) {
Color setup = slot.data.setup.color;
r = setup.r + (r - setup.r) * alpha;
g = setup.g + (g - setup.g) * alpha;
b = setup.b + (b - setup.b) * alpha;
} else {
r = color.r + (r - color.r) * alpha;
g = color.g + (g - color.g) * alpha;
b = color.b + (b - color.b) * alpha;
}
}
color.r += (r - color.r) * alpha;
color.g += (g - color.g) * alpha;
color.b += (b - color.b) * alpha;
}
color.r = r < 0 ? 0 : (r > 1 ? 1 : r);
color.g = g < 0 ? 0 : (g > 1 ? 1 : g);
color.b = b < 0 ? 0 : (b > 1 ? 1 : b);
}
}
@ -1144,23 +1151,31 @@ public class Animation {
if (!slot.bone.active) return;
Color color = (appliedPose ? slot.applied : slot.pose).color;
float a;
float[] frames = this.frames;
if (time < frames[0]) {
Color setup = slot.data.setup.color;
switch (blend) {
case setup -> color.a = setup.a;
case first -> color.a += (setup.a - color.a) * alpha;
case setup -> {
color.a = setup.a;
return;
}
case first -> a = color.a + (setup.a - color.a) * alpha;
default -> {
return;
}
}
} else {
a = getCurveValue(time);
if (alpha != 1) {
if (blend == setup) {
Color setup = slot.data.setup.color;
a = setup.a + (a - setup.a) * alpha;
} else
a = color.a + (a - color.a) * alpha;
}
return;
}
float a = getCurveValue(time);
if (alpha == 1)
color.a = a;
else {
if (blend == setup) color.a = slot.data.setup.color.a;
color.a += (a - color.a) * alpha;
}
color.a = a < 0 ? 0 : (a > 1 ? 1 : a);
}
}