There was a bug in Observable's thumbnail settings which caused thumbnails to get stretched vertically (https://github.com/observablehq/feedback/issues/133). It seems that this notebook's thumbnail has been stretched as well, so you may want to to reupload it.

Thank you for letting me know @mootari !! I have re-uploaded :)

Object.entries(uniforms).map(([name, value]) => { let [_, type, dims] = value.match(/([^[]+)((?:\[[\s0-9]+\])*)*/); return [name, { type, dims }]; }) and ${Array.from(uniforms, ([name, { type }]) => `uniform ${type} ${name}${dims || ""};`).join( "\n" )} To allow for dimensional uniforms (e.g.) {myVal: "float[1][2][3]"}

Added your suggestions @dmadisetti (had to slightly modify the second suggestions so dims is destructured in the args)! Please let me know if it works as you expect