Please enable hardware accelerated WebGL graphics in your browser!
Chrome
Enable hardware acceleration:
Go to chrome://settings
Click the Advanced ▼ button at the bottom of the page
In the System section, ensure the Use hardware acceleration when available checkbox is checked (you'll need to relaunch Chrome for any changes to take effect)
Then enable WebGL:
Go to chrome://flags
Ensure that Disable WebGL is not activated (you'll need to relaunch Chrome for any changes to take effect)
In newer versions, this option of Disable WebGL will not be available, you will instead have to search for WebGL 2.0