<a-assets>
<a-mixin id="ring" geometry="primitive: ring; radiusOuter: 0.20;
radiusInner: 0.15;"
material="color: cyan; shader: flat"
cursor=" fuse: true"></a-mixin>
<a-asset-item id="mancloth" src="../models/man.obj"></a-asset-item>
<a-asset-item id="manclothmtl" src="../models/man.mtl"></a-asset-item>
</a-assets>
<a-entity camera look-controls wasd-controls><a-entity mixin="ring" position="0 0 -3">
<a-animation begin="cursor-click" easing="ease-in" attribute="scale"
fill="backwards" from="0.3 0.3 0.3" to="1 1 1"></a-animation>
<a-animation begin="cursor-fusing" easing="ease-in" attribute="scale"
fill="forwards" from="1 1 1" to="0.3 0.3 0.3"></a-animation>
</a-entity>
</a-entity>
<a-obj-model scale="1 1 1" src="#mancloth" mtl="#manclothmtl"></a-obj-model>
I use the camera to interact with the obj but aframe.js shows an error on line 57766. How can I solve this problem without changing aframe.js.
var intersectedEl = intersection.object.el;
intersectedEl.emit('raycaster-intersected', {el: el,intersection:intersection});
intersection.object is a THREE.Mesh, so intersection.object.el is undefined!
This problem has been fixed at https://github.com/aframevr/aframe/pull/1497 by binding the A-Frame entity to each child of the model.
You can wait for A-Frame 0.3.0 or use the latest A-Frame master. Right now, the cursor uses a raycaster to see what object was intersected. With OBJ/COLLADA models, it creates a tree of objects. However, A-Frame was only treating the top-level object as an entity. So when the raycaster returned the object, it did not have an associated entity to emit an event with.
Now it should just work:
<a-camera><a-cursor></a-cursor></a-camera>
<a-obj-model></a-obj-model>
Related
In the scene, I have two boxes. I am trying to make one box cloning the other one's rotation angle in real time.
<a-entity id="original" mixin="cube" position="0 1.6 -1" material="color: red" sleepy collision-filter="group: red; collidesWith: default, hands, blue" rotation="0 0 0">
<a-entity id="clone" mixin="cube" position="2 1.6 -1" material="color: blue" sleepy
collision-filter="group: blue; collidesWith: default, red" rotation="0 0 0">
I can see that the property of a cloned box updates correctly through console.log(), but in the scene the box does not change its angle. What am I missing?
The code below is my attempt to make it work.
var check = document.querySelector('.controllers');
var ori = document.getElementById('original');
var clo = document.getElementById('clone');
check.addEventListener('xbuttondown', () => {
var ori_pos = ori.getAttribute("rotation");
//console.log(ori_pos.x);
clo.object3D.rotation.set(
THREE.Math.degToRad(ori_pos.x),
THREE.Math.degToRad(ori_pos.y),
THREE.Math.degToRad(ori_pos.z)
);
console.log(clo.getAttribute("rotation"));
});
From the A-Frame FAQ: To improve performance, A-Frame does not update the HTML to save on stringification operations. This also means mutation observations will not fire. Use the debug component or .flushToDOM methods if you need to sync to the DOM
I am interested in setting up an AFrame scene which has the exact same camera motion than the one we get when we invoke the 'Inspector (Ctrl+Alt+I)'.
left click used to move the camera
wheel for zooming
right click moves with no rotations the camera
It is an equivalent set up that would be found in the CAD - CAO softwares like rhino for example.
For the moment I have this set up, which has not the wheel-zooming, and that is not natural:
<a-entity look-at="#WorldFrame" look-controls>
<a-entity position="7 0 -7" rotation="0 135 0">
<a-camera fov="20" zoom="0.6" look-controls="enabled:false">
<a-cursor></a-cursor>
</a-camera>
</a-entity>
</a-entity>
Any clue?
thanks
EDIT:
the right configuration for the left-click seems to be the following:
<a-entity id="cameraTarget" position="0 0 0" rotation="0 0 0" look-controls >
<a-entity position="7 0 7" >
<!-- Disable the default wasd controls we are using those to control the ship -->
<a-camera id="cameraID" fov="20" zoom="0.6" look-controls="enabled:false">
<a-cursor></a-cursor>
</a-camera>
</a-entity>
</a-entity>
I still have no clue for the wheel and right click?
You can use aframe-orbit-controls
<head>
<title>My A-Frame Scene</title>
<script src="https://aframe.io/releases/0.8.2/aframe.min.js"></script>
<script src="https://unpkg.com/aframe-orbit-controls#1.2.0/dist/aframe-orbit-controls.min.js"></script>
<script src="https://unpkg.com/aframe-supercraft-loader#1.1.3/dist/aframe-supercraft-loader.js"></script>
</head>
<body>
<a-scene>
<a-entity supercraft-loader="name: icky-snake"></a-entity>
<a-entity camera look-controls orbit-controls="target: 0 1.6 -0.5; minDistance: 0.5; maxDistance: 180; initialPosition: 0 5 15"></a-entity>
</a-scene>
</body>
i have an issue with the camera zoom in AFRAME vr-mode on mobile or in other vr gear. i have built a zoom animation it doesnt work on mobile or in other vr gear.
can someone help pls.
here is the code:
<a-entity id="cam-vr" camera="zoom:1; active:false " rotation="0 0 0" look-controls>
<a-animation begin="cursor-fusing" delay=" 3000" attribute="camera.zoom" from="1" to="4" dur="1000"></a-animation>
<a-animation begin="click" delay="500" attribute="camera.zoom" from="4" to="1" dur="1000"></a-animation>
<a-entity id="cursor" visible="false" cursor="fuse: true; fuseTimeout:4000" geometry="primitive: ring; radiusInner: 0.012; radiusOuter: 0.02; thetaLength: 360; thetaStart: 0" rotation="0 0 90" position="0 0 -1" material="color: black; side: double; shader: flat">
<a-animation begin="cursor-fusing" attribute="geometry.thetaLength" from="360" to="0" easing="linear" dur="3000"></a-animation>
<a-animation begin="mouseleave" attribute="geometry.thetaLength" from="360" to="360" dur="0"></a-animation>
</entity>
</a-entity>
This isn't possible — in VR with A-Frame or three.js, you are rendering with THREE.VREffect, not simply a THREE.PerspectiveCamera, and there is not a simple equivalent of zooming in while preserving correct left/right eye alignment.
FPS patterns don't always work so well in VR, either. You could move the camera closer to the content, but this can also create nausea for users in VR. It may be better to consider VR-appropriate alternatives, like teleporting.
Is there a way to chainlink an animation in aframe? I am trying to once clicked move a cube to a position, hold that position for x amount of time, then animate back to the original spot.
So far I have just 2 animations the second is beginning when listening for an animationend event. Problem is, then both animations emit an animationend which in turn triggers the second animation over and over. This approach doesn't seem to be right
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Curved Images</title>
<meta name="description" content="Curved Images - A-Frame">
<script src="https://aframe.io/releases/0.2.0/aframe.min.js"></script>
</head>
<body>
<a-scene>
<a-entity position="0 1.8 4">
<a-entity camera look-controls wasd-controls>
<a-entity position="0 0 -3"
geometry="primitive: ring; radiusOuter: 0.30;
radiusInner: 0.20;"
material="color: cyan; shader: flat"
cursor="maxDistance: 30; fuse: true">
<a-animation begin="click" easing="ease-in" attribute="scale"
fill="backwards" from="0.1 0.1 0.1" to="1 1 1" dur="150"></a-animation>
<a-animation begin="fusing" easing="ease-in" attribute="scale"
fill="forwards" from="1 1 1" to="0.1 0.1 0.1" dur="1500"></a-animation>
</a-entity>
</a-entity>
</a-entity>
<a-box id="orange-cube" position="0 3.5 -2" rotation="30 30 0" width="2" depth="2"
height="2" color="#583C87" roughness="0.8">
<a-animation begin="click" attribute="position" from="0 3.5 -2" to="3 2 -2"
easing="linear" dur="2000" fill="forward"></a-animation>
<a-animation begin="fade" attribute="position" from="3 2 -2" to="0 3.5 -2"
easing="linear" dur="2000" fill="backwards"></a-animation>
</a-box>
</a-scene>
<script type="text/javascript">
document.querySelector('#orange-cube').addEventListener('animationend', function () {
document.querySelector('#orange-cube').emit('fade');
});
//document.querySelector('#orange-cube').emit('fade');
</script>
</body>
</html>
You can play animations by doing animationEl.play(). You could write some JS to trigger the animations based on the conditions you want. The declarative API (A-Frame 0.2.0) does not currently support animation sequences.
A D3 approach.
Here is a CodePen example that demonstrates what you ask for (I hope!). Using D3, you can schedule a second animation/transition after the first finishes with:
.each('end', <function>);
I wasn't sure how long to hold the cube in its new position, if 1 second is too short you can change the delay by modifying line 19 (in milliseconds):
.delay(1000)
A-Frame exposes the tween.js object so you can wire it up yourself.
AFRAME.TWEEN
https://github.com/tweenjs/tween.js/
I will be writing my own new animation components to hopefully deprecate <a-animation> tags which are limited and don't fit within the framework.
In a a-scene, I try to change my camera position at runtime. The DOM property changes but the camera does not move.
What could have I missed ?
my js code:
document.querySelector('#myCameraPosition').setAttribute('position', '0 0 0');
My a-scene:
<a-entity id="myCameraPosition" position="0 0 50">
<a-entity id="myCamera" camera look-controls keyboard-controls>
</a-entity>
</a-entity>
Create a wrapper entity around the camera:
<a-entity id='cameraWrapper' position="0 0 0">
<a-camera></a-camera>
</a-entity>
Then change position of the wrapper:
document.querySelector("#cameraWrapper").object3D.position.set(1, 1, 1);
Had to set "look-controls" to false for javascript rotation control, otherwise wouldn't work :
function resetView(el){
el.setAttribute('look-controls','false');
el.setAttribute('rotation',{x:0,y:0,z:0});
el.setAttribute('look-controls','true');
}
On the example below I can change the position of the camera entity's parent and it works as expected:
https://aframe.io/examples/showcase/helloworld/
Is any of the openearthview or acceleration components writing the position of the camera entitiy's parent? They might be overwritting its position.
document.getElementById('myCameraPosition').setAttribute('position', {x:0, y:0, z:0});
or
document.querySelector('#myCameraPosition').setAttribute('position', {x:0, y:0, z:0});
When it comes to position you can directly change the camera position(unlike rotation where you need a wrapper entity).
so
document.getElementById('myCameraPosition').setAttribute('position', {x:0, y:0, z:0});
should work