message: fix HTMLImageElement check for SMAA
diff: @@ -44,7 +44,7 @@ export class SmaaPass {
  }
  constructor(private webgl: WebGLContext, input: Texture) {
  - if (typeof HTMLImageElement === undefined) {
  + if (typeof HTMLImageElement === 'undefined') {
  if (isDebugMode) console.log(`Missing "HTMLImageElement" required for "SMAA"`);
  return;
  }
  