How to clear the array (this.array) of the bufferAttribute which is shared with different geometries

Questions
1

can anyone help me out, how to clear the array (this.array) of the bufferAttribute which is shared with different geometries. i tried with “onUploadCallback” but it throwing error for this case.

getBufferAttrib(accessor)
{
let key ='bufferView : ' + accessor.bufferView;
let bufferAttribute = this.BufferAttributeCache.get(key);

if(bufferAttribute === undefined){

   let itemSize = WebglConstants.WEBGL_TYPE_SIZES[accessor.type];

   let arrayType = WebglConstants.WEBGL_COMPONENT_TYPES[accessor.componentType];
   let data = new arrayType(accessor.bufferViewData,accessor.bufferOffset, accessor.count * itemSize );
   bufferAttribute = new THREE.BufferAttribute( data, itemSize );    
   bufferAttribute.name = accessor.name;
   bufferAttribute.refCount = 1;
   bufferAttribute.onUploadCallback = function() {
       this.refCount = this.refCount - 1;
       if(this.refCount === 0){
           this.array = null;
       }             
   };      
   this.BufferAttributeCache.add(key, bufferAttribute);

}
else{
   bufferAttribute.refCount = bufferAttribute.refCount + 1;
}
2

Please reformat your code–it did not format correctly for this forum. Also, as I mentioned on Stack Overflow, if you’re receiving an error, please include the full text of the error in your question (or on this forum you can post it below as a reply).

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