用于360图像的A帧用户滑动效果 [英] A-Frame user swipe effect for 360 Image
问题描述
我使用aframe.io库获得了360度图像。我想看看如何创建投掷效果。 [不确定效果如何]当用户向左或向右滑动时，这360个图像将旋转/旋转到任一方向，并最终在一段时间后完成（可能取决于滑动的程度？）。
I have a 360 Image using aframe.io library. And I would like to see how to create a "throw" effect. [Not sure what the effect calls] When user swipe left or right, the 360 images will rotate/spin to either direction and eventually finish after sometime (perhaps depends on how hard the swipe is?).
我正在考虑在天空中进行动画，可以达到目的，但是我想问一个人，这是否是正确的方法。
I am thinking of having a a-animation within a a-sky can do the trick, but I would like to ask someone whether this is the right approach.
效果类似于
http://photo-sphere-viewer.js.org/
谢谢。
<a-sky id="vr-sky">
<a-animation attribute="rotation"></a-animation>
</a-sky>
<!-- Or use animation component -->
<a-sky id="vr-sky"
animation__rotation="property: rotation; dur: 2000; easing: easeInOut; to: 0 360 0">
</a-sky>
推荐答案
一种方法是使用 super-hands 处理抛掷和 aframe-physics-system 来处理旋转和减速（在 aframe-physics-extras ）
One way to do this is using super-hands to handle the swipe-to-throw and aframe-physics-system to handle the spinning and deceleration (with a little help from aframe-physics-extras)
<!DOCTYPE html>
<html>
<head>
<title>Swipe to spin photosphere</title>
<script src="https://aframe.io/releases/0.7.0/aframe.min.js"></script>
<script src="//cdn.rawgit.com/donmccurdy/aframe-physics-system/v2.1.0/dist/aframe-physics-system.min.js"></script>
<script src="https://unpkg.com/super-hands/dist/super-hands.min.js"></script>
<script src="https://unpkg.com/aframe-physics-extras/dist/aframe-physics-extras.min.js"></script>
</head>
<body>
<a-scene physics="gravity: 0">
<a-assets>
<a-mixin id="static" static-body="shape: sphere; sphereRadius: 0.2"></a-mixin>
<!-- the z position of the grabber determines the leverage/force for swipes -->
<a-mixin id="grabber" physics-collider position="0 0 -25"
collision-filter="collisionForces: false"
super-hands="colliderEvent: collisions;
colliderEventProperty: els;
colliderEndEvent: collisions;
colliderEndEventProperty: clearedEls">
</a-mixin>
<img id="pano" src="https://your image url here" crossorigin="anonymous"/>
<video id="video360" src="https://your video url here" crossorigin="anonymous"/>
</a-assets>
<!-- progressive-controls sets up mouse/touch input -->
<a-entity progressive-controls="maxLevel: gaze; gazeMixin: grabber"></a-entity>
<a-entity id="bottom" mixin="static" position="0 -100 0"></a-entity>
<a-entity id="top" mixin="static" position="0 100 0"></a-entity>
<!-- use an entity with a sphere because a-sky seems to have its rotation locked down -->
<!-- angularDamping sets the deceleration rate and the constraints limit rotation to Y axis -->
<!-- src can be #pano or #video360 -->
<a-entity id="sky" geometry="primitive: sphere; radius: 100" material="src: #pano; side:front" grabbable
scale="-1 1 1"
dynamic-body="angularDamping: 0.5"
constraint__1="type: pointToPoint; target: #bottom; collideConnected: false; pivot: 0 -100 0"
constraint__2="type: pointToPoint; target: #top; collideConnected: false; pivot: 0 100 0">
</a-entity>
</a-scene>
</body>
</html>
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