Ce site est optimisé pour être consulté depuis un navigateur moderne dans lequel JavaScript est activé.

How to achieve the exact speed of Spine animations in Unity?

phammanhthang87

Dear Spine Creators,

Could you please share me a way to achieve the exact speed of Spine animations in Unity? After I finish an animation in Spine (30 frame per sec), the developers cannot run the accurate speed of that animation. Normally, It runs faster in Unity. The devs say that it is hard to adjust the same speed in Unity because Unity and Spine do not use the same animation speed measurement. Therefore, we have to sit together and adjust it manually in Unity. Please help us to find a solution.

Thank you so much and forgive me for the bad English.

Harald

In general when playing back animations via spine-unity there should be no difference in playback speed.

Could you please check what your Dopesheet FPS settings in Spine is set to:
Playback - Spine User Guide

phammanhthang87 a écrit
The devs say that it is hard to adjust the same speed in Unity because Unity and Spine do not use the same animation speed measurement.

Please do not adjust any playback speed on the Unity side, if it does not match automatically then something on the exported Skeleton asset is wrong. This is under the assumption that you are not calling SkeltonAnimation.Update() yourself.

phammanhthang87 a écrit
The devs say that it is hard to adjust the same speed in Unity because Unity and Spine do not use the same animation speed measurement.

Spine exports every timepoint in seconds, on the Unity side it is played back based on frame delta time, which is also seconds. So I wonder what your developer meant by "not the same animation speed measurement", in general there is no difference.

Nate

To add a little: Spine uses animations to pose skeletons at a specific time. The time is calculated using the delta time passed to AnimationState update. Typically you would use the "wall time", which means the actual, real life time passed using your computer's system clock. That means both the Spine editor and the Spine Runtimes in Unity will play the animations at the same speed. As Harald mentioned, you should not need any manual speed adjustments when using the wall/system time.

You could also pass in a delta time using a different time source. For example, some apps get the time from the audio device, which may be slightly faster or slower than the wall/system time. Using the audio time means the animations will match the audio as closely as possible.

Harald

To add even more: On the Unity side the AnimationState.Update() method is called automatically by the SkeletonAnimation component, using Unity's Time.deltaTime as frame delta. If you are encountering synchronisation problems with audio, please let us know, then I can provide more detailled help in this regard.

phammanhthang87

Thank you so much! You guys always give me the best support. I will discuss this problem with my devs. I wish you guys a great day!

Harald

Thanks for your kind words! Have a great day, too! 🙂