[DiscordArchive] Lacks interpolation ?
[DiscordArchive] Lacks interpolation ?
Original source
Lacks interpolation ?
rektbyfaith
06-12-2025, 01:01 PM #1Archived author: Titi • Posted: 2025-06-12T13:01:32.211000+00:00
Original source
Lacks interpolation ?
Original source
Very much yes xD But for 9 days of work it's pretty good already I would say.
I mean this is the worst it will be, only gonna improve from here <:kekw:1301383133899522078>
rektbyfaith
06-12-2025, 03:33 PM #2Archived author: Saty • Posted: 2025-06-12T15:33:05.192000+00:00
Original source
Very much yes xD But for 9 days of work it's pretty good already I would say.
I mean this is the worst it will be, only gonna improve from here <:kekw:1301383133899522078>
Original source
Nope. Probably did it wrong tho somehow. Need to check again
rektbyfaith
06-12-2025, 03:33 PM #3Archived author: Saty • Posted: 2025-06-12T15:33:46.939000+00:00
Original source
Nope. Probably did it wrong tho somehow. Need to check again
Original source
```cs
if (modelBone.Rotation.Timestamps.Count > 0)
{
var rotationtimestamps = modelBone.Rotation.Timestamps[CurrentSequence];
for (int j = 1; j < rotationtimestamps.Count; j++)
{
if (currentMilliseconds >= rotationtimestamps[j - 1] && currentMilliseconds < rotationtimestamps[j])
{
var startRaw = modelBone.Rotation.Values[CurrentSequence][j - 1];
Quaternion start = new Quaternion(startRaw.Y, startRaw.Z, -startRaw.X, -startRaw.W);
var endRaw = modelBone.Rotation.Values[CurrentSequence][j];
Quaternion end = new Quaternion(endRaw.Y, endRaw.Z, -endRaw.X, -endRaw.W);
var t = (currentMilliseconds - rotationtimestamps[j - 1]) / (float)(rotationtimestamps[j] - rotationtimestamps[j - 1]);
switch (modelBone.Translation.InterpolationType)
{
case M2Track<M2Lib.types.C3Vector>.InterpolationTypes.Instant:
{
desiredRotation = start;
}
break;
case M2Track<M2Lib.types.C3Vector>.InterpolationTypes.Linear:
{
desiredRotation = math.nlerp(start, end, t);
}
break;
case M2Track<M2Lib.types.C3Vector>.InterpolationTypes.Bezier:
{
// TODO implement bezier!!!
desiredRotation = math.nlerp(start, end, t);
}
break;
case M2Track<M2Lib.types.C3Vector>.InterpolationTypes.Hermite:
{
// TODO implement hermite!!!!
desiredRotation = math.nlerp(start, end, t);
}
break;
}
}
}
}
```
Anyone with a few more braincells than me maybe sees why the rotation might be so jittery? (Bezier and Hermite not used in the login model)
rektbyfaith
06-12-2025, 05:59 PM #4Archived author: Saty • Posted: 2025-06-12T17:59:02.132000+00:00
Original source
```cs
if (modelBone.Rotation.Timestamps.Count > 0)
{
var rotationtimestamps = modelBone.Rotation.Timestamps[CurrentSequence];
for (int j = 1; j < rotationtimestamps.Count; j++)
{
if (currentMilliseconds >= rotationtimestamps[j - 1] && currentMilliseconds < rotationtimestamps[j])
{
var startRaw = modelBone.Rotation.Values[CurrentSequence][j - 1];
Quaternion start = new Quaternion(startRaw.Y, startRaw.Z, -startRaw.X, -startRaw.W);
var endRaw = modelBone.Rotation.Values[CurrentSequence][j];
Quaternion end = new Quaternion(endRaw.Y, endRaw.Z, -endRaw.X, -endRaw.W);
var t = (currentMilliseconds - rotationtimestamps[j - 1]) / (float)(rotationtimestamps[j] - rotationtimestamps[j - 1]);
switch (modelBone.Translation.InterpolationType)
{
case M2Track<M2Lib.types.C3Vector>.InterpolationTypes.Instant:
{
desiredRotation = start;
}
break;
case M2Track<M2Lib.types.C3Vector>.InterpolationTypes.Linear:
{
desiredRotation = math.nlerp(start, end, t);
}
break;
case M2Track<M2Lib.types.C3Vector>.InterpolationTypes.Bezier:
{
// TODO implement bezier!!!
desiredRotation = math.nlerp(start, end, t);
}
break;
case M2Track<M2Lib.types.C3Vector>.InterpolationTypes.Hermite:
{
// TODO implement hermite!!!!
desiredRotation = math.nlerp(start, end, t);
}
break;
}
}
}
}
```
Anyone with a few more braincells than me maybe sees why the rotation might be so jittery? (Bezier and Hermite not used in the login model)
Original source
Position is buttery smooth, tested everything without positioning and it still jitters.
I have a feeling this might be:
a) A unity bug
b) Something not taken into account from the parent
Like with positions the coordinates from objects with a parent are relative, while objects without parent are absolute...
Maybe same case here? Am to stupid for quaternion math tho
rektbyfaith
06-12-2025, 06:01 PM #5Archived author: Saty • Posted: 2025-06-12T18:01:09.137000+00:00
Original source
Position is buttery smooth, tested everything without positioning and it still jitters.
I have a feeling this might be:
a) A unity bug
b) Something not taken into account from the parent
Like with positions the coordinates from objects with a parent are relative, while objects without parent are absolute...
Maybe same case here? Am to stupid for quaternion math tho
Original source
first change the => to a >, you don't want two different times to have the same value
`if (currentMilliseconds >= rotationtimestamps[j - 1]`
rektbyfaith
06-12-2025, 06:01 PM #6Archived author: Titi • Posted: 2025-06-12T18:01:18.880000+00:00
Original source
first change the => to a >, you don't want two different times to have the same value
`if (currentMilliseconds >= rotationtimestamps[j - 1]`
Original source
You sure? That skips frame 1 tho
rektbyfaith
06-12-2025, 06:02 PM #7Archived author: Saty • Posted: 2025-06-12T18:02:03.002000+00:00
Original source
You sure? That skips frame 1 tho
Original source
it could mess up with the other check just being a <
rektbyfaith
06-12-2025, 06:02 PM #8Archived author: Titi • Posted: 2025-06-12T18:02:09.228000+00:00
Original source
it could mess up with the other check just being a <
Original source
ah yeah, maybe hackfix for frame 0
rektbyfaith
06-12-2025, 06:02 PM #9Archived author: Titi • Posted: 2025-06-12T18:02:40.348000+00:00
Original source
ah yeah, maybe hackfix for frame 0
Original source
nlerp btw being:
```cs
public static quaternion nlerp(quaternion q1, quaternion q2, float t)
{
return normalize(q1.value + t * (chgsign(q2.value, dot(q1, q2)) - q1.value));
}
```
rektbyfaith
06-12-2025, 06:04 PM #10Archived author: Saty • Posted: 2025-06-12T18:04:01.897000+00:00
Original source
nlerp btw being:
```cs
public static quaternion nlerp(quaternion q1, quaternion q2, float t)
{
return normalize(q1.value + t * (chgsign(q2.value, dot(q1, q2)) - q1.value));
}
```
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