verticesNeedUpdate in Three.js

I want to use dat.GUI to manipulate the coordinates of a mesh vertices.

At first I thought I could have removed every frame my meshes to recreate them anew, but then I saw here that it's not a good way.

Is verticesNeedUpdate that I should use? It seems not to be on Three.js documentation



If your geometry is THREE.Geometry, then your can update the vertices by using a pattern like so:

geometry.vertices[ 0 ].set( x, y, z );

geometry.verticesNeedUpdate = true;

If your geometry is THREE.BufferGeometry, then you can use this pattern:

geometry.attributes.position.setXYZ( index, x, y, z );

geometry.attributes.position.needsUpdate = true;

In either case, you only need to set the needsUpdate flag if the geometry has been previously-rendered.

Also, you cannot resize buffers; you can only change the data values. See the Wiki article How to Update Things for additional information.

three.js r.85


Recent Questions

Top Questions

Home Tags Terms of Service Privacy Policy DMCA Contact Us

©2020 All rights reserved.