Exploring the potential of dat.GUI for modifying mesh vertices coordinates has been an interesting challenge.
Initially, my approach involved removing and recreating meshes each frame, but after some research on this insightful link, I realized that this method is not recommended.
Should I utilize verticesNeedUpdate instead? Strangely, it does not appear to be documented in Three.js resources.
If you are working with a geometry of type THREE.Geometry, then you can update the vertices using the following approach:
geometry.vertices[ 0 ].set( newX, newY, newZ );
geometry.verticesNeedUpdate = true;
However, if your geometry is of type THREE.BufferGeometry, you should use this method instead:
geometry.attributes.position.setXYZ( specificIndex, newX, newY, newZ );
geometry.attributes.position.needsUpdate = true;
Remember, only set the needsUpdate flag if the geometry has been rendered before.
It's important to note that buffer resizing is not possible; you can only modify the data values. Refer to the Wiki article How to Update Things for further details.
Version: three.js r.85
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