chore: Try to update Point example

[kylebarron]

I'm trying to update the example but I can't figure out why it isn't working.

To reproduce:

At the top level

npm install
npm run watch

Inside examples/point

npm install
npm run start

[felixpalmer]

The shader dump in the grey box should give you the error, it's generally easiest to copy paste the whole thing into a text editor to search for "error", it should be highlighted in red

[kylebarron]

#148 (comment)