This demo only works if you have the webgpu feature "f16". You can find out if you have this by checking for the feature list in https://webgpureport.org/ https

This demo only works if you have the webgpu feature "f16". You can find out if you have this by checking for the feature list in https://webgpureport.org/ https://webgpureport.org/ . The page itself can of course check for this but since f16 support is common they probably just didnt bother.