/**
* @author mrdoob / http://mrdoob.com/
*/
function WebGLObjects( gl, geometries, attributes, info ) {
var updateMap = new WeakMap();
function update( object ) {
var frame = info.render.frame;
var geometry = object.geometry;
var buffergeometry = geometries.get( object, geometry );
// Update once per frame
if ( updateMap.get( buffergeometry ) !== frame ) {
if ( geometry.isGeometry ) {
buffergeometry.updateFromObject( object );
}
geometries.update( buffergeometry );
updateMap.set( buffergeometry, frame );
}
if ( object.isInstancedMesh ) {
attributes.update( object.instanceMatrix, gl.ARRAY_BUFFER );
}
return buffergeometry;
}
function dispose() {
updateMap = new WeakMap();
}
return {
update: update,
dispose: dispose
};
}
export { WebGLObjects };