i want to mask google map over webgl earth globe , so currently am gathering data to start , so i come across ( http://examples.webglearth.com/#opposite )
webglearth api is good but documentation is poor , so i explore through its examples and i found that bing maps are integrated with it , so i wonder can i link google maps with webglearth , like when i zoom through webgl earth globe and then google maps load with it . so can anybody have any idea that with webgl earth google map integration is possible or not because there is no bing map api key mentioned or data source mentioned in its examples , which is strange to me because in certain examples there are using bing maps and open streetmap