Try trigger re-rendering when the scene needs updating to reflect the changes immediately with:
viewer.impl.invalidate(needsClear, needsRender, overlayDirty) // e.g. viewer.impl.invalidate(true)
I have a basic viewer set up with a model that I am adding some spheres to. The actual adding of the spheres works fine.
var geometry = new THREE.SphereGeometry( 50, 50, 50 );
viewer.impl.createOverlayScene('TestOverlay' , material)
var cube = new THREE.Mesh(geometry, material)
viewer.impl.addOverlay('TestOverlay', cube);
I am trying to get the added spheres to change size triggered by a button outside of the viewer by setting the scale.
scale.set(2, 2, 2)
technically this works but the sphere will only change scale the next time the user interacts with the viewer in some way e.g. something as simple as the users mouse entering the viewer will cause it to update.
I have tried setting the needs update fields on the three js geometry object but that didnt change anything and I could not find anything in the forge documentation about manually updating it.
is there a way to force the update from Javascript
Try trigger re-rendering when the scene needs updating to reflect the changes immediately with:
viewer.impl.invalidate(needsClear, needsRender, overlayDirty) // e.g. viewer.impl.invalidate(true)
This worked, I had tried this before but i did not realise there were 3 parameters for the invalidate method so viewer.impl.invalidate(true) does not work but viewer.impl.invalidate(true,true,true) does