How to apply modelMatrix to a feature of 3dtile?

CesiumJS
1

i am trying to rotate every building which height is heigher than 100 ,
it seems the modelMartix is worked but not correctly
could anyone know the right way to write the modelMatrix?

here is the sandcastle

sandcastle

3

Hi @samkallon, I’m not sure if what you’re trying to do is possible. One thing I noticed in your code is that you are referring to feature.content as if that content was specific to the feature:

    for (var i = 0; i < featuresLength; i += 1) {
      let feature = content.getFeature(i);
      // ...
      let model = feature.content._model;

The private getter Cesium3DTileFeature.prototype.content actually refers back to the Cesium3DTileContent which contains the feature, so your loop is repeatedly modifying the same content._model.modelMatrix.

4

hi @jjhembd, thank you for your tip, i will try it later