我一直在阅读有关动画的a帧文档。当我单击一个实体时,我希望它平滑地向前缩放,然后向后缩放,即 from
-> to
-> from
也许有一个简单的解决方案,但到目前为止我得到的最接近的是使用它:
<a-animation
attribute='scale'
dur='500'
from='1 1 1'
to='3 3 3'
fill='backwards'
begin='click'>
</a-animation>
fill='backwards'
动画完成后将动画恢复到from
状态,但效果并不顺利。
有没有一种简单的方法来对from
-> to
-> from
进行动画处理?
下面是一个示例:
<script src='https://cdnjs.cloudflare.com/ajax/libs/aframe/0.7.1/aframe.js'></script>
<a-scene>
<a-entity camera look-controls>
<a-entity geometry='primitive: ring;radiusOuter: 0.10;radiusInner: 0.05;' material='color: red;' position='0 0 -3' cursor='maxDistance: 30; fuse: false'>
</a-entity>
</a-entity>
<a-entity geometry='primitive:box' position='0 0 -5'>
<a-animation attribute='scale' dur='500' from='1 1 1' to='3 3 3' fill='backwards' begin='click'></a-animation>
</a-entity>
</a-scene>
从文档中:方向 - 确定动画的方向。使用备用
使其重复一次,以便动画返回到其起始位置。
<script src='https://cdnjs.cloudflare.com/ajax/libs/aframe/0.7.1/aframe.js'></script>
<a-scene>
<a-entity camera look-controls>
<a-entity geometry='primitive: ring;radiusOuter: 0.10;radiusInner: 0.05;' material='color: red;' position='0 0 -3' cursor='maxDistance: 30; fuse: false'>
</a-entity>
</a-entity>
<a-entity geometry='primitive:box' position='0 0 -5'>
<a-animation attribute='scale' dur='500' direction='alternate' from='1 1 1' to='3 3 3' begin='click' repeat='1'></a-animation>
</a-entity>
</a-scene>