Despite my attempt to rotate or reposition a mesh following the application of EdgesHelper, the desired effect is not achieved — the mesh remains in its original position. (Interestingly, it works perfectly fine without the EdgesHelper). What could be causing this issue?
var mesh = new THREE.Mesh( geometry, material );
var edges = new THREE.EdgesHelper( mesh, 0xcf0000 );
edges.position.z = 100;
edges.position.x = 100;
scene.add( edges );
Upon examination of the source code for THREE.EdgesHelper, it appears that the matrixAutoUpdate parameter is configured as false. This configuration prevents the recalculation of position and rotation with each update.
Link to EdgesHelper Source Code
To resolve this issue, toggling the matrixAutoUpdate setting to true should suffice. However, a cleaner approach would be to invoke the .updateMatrix() function after adjusting the position or rotation.
Encountering a similar issue, I decided to implement the following solution:
egh.matrixAutoUpdate = true;
To ensure both the edge and cube aligned with my coordinates, I utilized:
var cube = new THREE.Mesh( new THREE.CubeGeometry(width,height,depth),
new THREE.MeshBasicMaterial( {color: 0x00AA00, side:THREE.DoubleSide, opacity: 0.5, transparent: true } ) );
scene.add(cube);
var egh = new THREE.EdgesHelper(cube, 0x777777);
egh.material.linewidth = 1;
egh.position.x = cube.position.x;
egh.position.y = cube.position.y;
egh.position.z = cube.position.z;
egh.matrixAutoUpdate = true; // this was effective
scene.add(egh);
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