I've been trying to get to grips with the Timeline feature in Unity, but I am having problems where an animation event is not firing when I think it should.
I have an object that is animated by an animation track containing two animation clips. The first clip contains an animation event at the end. This clip is looped 7 times. The second clip is then played once:
I would expect to observe the event 7 times, but I only see it 6 times - the very last event does not fire.
If I add a gap between the two clips then all 7 events correctly fire:
The clips are short in duration - I think there is some sort of blending done by the timeline between the two clips that stops the last event firing. Ease In and Ease-out duration are set to 0. I've tried changing the extrapolation and Blend Curve settings, but nothing seems to change it.
This has been confirmed as a bug in Unity - fixed in 2019.1.
Related
In my React Native application I have some tiles (wrapped in a View for the example) which are half of the full width wide. They act as buttons and slide to the opposite side to open a menu. When I perform a swipe gesture and release the finger before the slide reaches its final position, I want the slide to animate to its final 'opened' position. The animation should start with the last velocity of the touch gesture for a smooth impression.
I implemented different variations but did not find a good solution (You can find my test-component in my GitHub repository). My View has a PanResponder to manage the gesture and to get the velocity. I started to use the Animated library, but the provided methods do not solve my problem. The only method where I can pass a initial velocity for the animation is the decay, but I can't pass a parameter where the animation should stop. With a timing animation I can set a final value, but can not pass a initial velocity (so the animation starts with a velocity of 0 which looks very jumpy). I tried to combine these two methods, but that does not work properly.
On iOS I could use a horizontal ScrollView with pagingEnabled, which shows the desired effect - but then I do not have the feature on Android.
Any ideas how I can solve this problem and show a smooth animation, starting with an initial velocity and ending on a given position, after the touch gestures end?
Thanks for your help!
EDIT I added the link to my last test component...
You can get a close approximation of the velocity by setting the duration of the timing animation
const duration = Math.abs((this.props.MAXDISTANCE - Math.abs(distanceMoved)) / velocity);
MAXDISTANCE is your final position
distanceMoved is the current position (gestureState.dx)
velocity is the current velocity (gestureState.vx)
You can use Animated.decay or Animated.spring to achieve this effect.
I have an animation for humanoid models to simulate climbing. I have been looking for a way to stimulate this animation when the model comes next to the window. I used the triggers to determine where the model is and it worked. However, when I execute the animation, the position of the model is not being updated according to the animation. I am using offmesh links and nav mesh agent and I disable nav mesh agent when the model triggers. How can I use the animation and provide the update simultaneously?
Animation Properties
Thanks in advance.
I don't think the animation should take care of the movement. You should control that somewhere else. You could make the animation climb from y = 0 to 5 but then it won't work if your ladder is at y = 3.
You'd better have a method that is called from the animation using AnimationEvent so that when you trigger the animation, it also triggers a movement of the object upwards/downwards regardless of the current position of the object. It would simply use Translate and disabled input until the animation ends.
I have a window displaying a video stream with a twitter feed as an overlay.
When a new tweet is displayed, the current tweet animates out using a rotate animation and the next tweet is rotated into view. The animations are performed using a RotateTransition.
The app also switches between different cameras to display different streams. To give an indication of when the app switches to the next camera, I have a progressbar that fills using a Timeline object.
This works well, until I resize the window. The rotate animations start to flicker, along with the progressbars as they gradually fill.
As a test, I disabled the video stream, to see what's happening. The 'artifact' doesn't occur then and I can resize as much as I want. If I play the stream and don't resize, everything works well.
The video player is based on VLCJ, but the actual pixels are drawn on a WritableImage in an Imageview.
See the following images that illustrate the problem.
At the bottom right you can see 2 different progress bars (a ProgresBar and a ProgressIndicator).
A part of the flickering result is still visible below the second image. It somehow stays visible, probably because the area doesn't get redrawn.
Any idea what makes the flickering happen? Is there anything I can do to fix or avoid this?
I tried some VM options in IntelliJ: -Dsun.java2d.d3d=true -Dprism.forceGPU=true to somehow enable hardware acceleration, but that doesn't seem to help.
Disabling the progressbar fill animation doesn't help either.
I had a similar problem with some arcs and shapes that would flicker when its attributes / sizes were changed.
The solution to my problem was to make sure that the methods used to change the shapes were called from inside the JavaFX thread.
Platform.runLater(() -> {
arc.setStartAngle(30);
arc.setLength(45);
}
I'm currently building a 2d platformer and encountered a few problems.
My player has a script so that when the player hits a cube with a rigid body, the cube can be pushed. When the character pushes the object, the regular walking animation is displayed.
I want to play the pushing animation at that moment but cant seem to fix it. I read a lot of topics on the internet about the difference between unity new Animator editor and the older versions.
Is there a simple way to trigger the animation on hit, and how do I have to add it in the Animator? Also with witch states should it be connected?
Found it on google, maybe it will help
http://unity3d.com/learn/tutorials/modules/beginner/2d/2d-overview
He uses a Layer for the animation of the cannon so he animates regardless of the body animation.
what is the recommended approach to playing animation sequences that include as the end-stone a repeating animation. For example, here are a few scenarios:
Sprite appears on screen, play intro animation, then repeat forever an "idle" animation
Sprite with "idle" animation performs some action thus I need to play some other specific animation at the end of which the sprite should start idling again.
CCSequence does not let me do this, as the "idle" animation is wrapped into a CCRepeatForever.
If I simply chose to run whatever animation I like above the idling animation I get frame flickering (looks like both animations are played at the same time) — sucks.
All animations are inside CCAnimationCache ... any advice will be highly appreciated.
I don't know if there is a recommended approach. What I would do is running the second animation (the repeating one) with a delay or by chaining it to the first through the animation completion handler.
An easy way to do the chaining is adding at the end of your first animation a CCCallFunc action, like here, that will call trigger the second animation:
CCActionInterval* action = [CCSequence actions:
[CCProgressFromTo actionWithDuration:duration_ from:100.f to:0.f],
[CCCallFunc actionWithTarget:self selector:#selector(startSecondAction)],
nil ];