Hi @1260811 we'll add a feature request to make this work with update() in an upcoming release. But in the meantime you can do this directly using code like this.

var projection_child = awe.projections.view('s').get_mesh().children[0];
var projection_params = projection_child.geometry.parameters.parameters;
projection_child.geometry = new THREE.TextGeometry( "YOUR NEW TEXT HERE", projection_params );
awe.scene_needs_rendering = 1;

We'll leave this issue open in case anyone else needs this workaround in the meantime.

does it work using a marker recognition?

This is a separate question, but just add a listener for the 'ar_tracking_marker' event that is thrown when the tracking runs - see the source code here https://github.com/awe-media/awe.js/blob/master/examples/marker_ar/awe.marker_ar.js#L416

Inside your listener you can add the code shown above to create what you want.

Thank you, but I'm begginer and I don't know where I must add it, could you write a example?

This github repos is now focused on supporting the development of apps using awe.js on the awe.media platform. You can still access our older awe.js library as the deprecated branch, however we no longer support that code.