Remove requirement for SuperSplat comment in PLY "chunk" element in order to decode compressed PLY format. (#39)

src/ply.ts

@@ -519,14 +519,12 @@ export class PlyReader {
 
     const elementCallback = (element: PlyElement) => {
       if (element.name === "chunk") {
-        if (
-          this.comments.some((comment) =>
-            comment.toLowerCase().includes("supersplat"),
-          )
-        ) {
-          // SuperSplat compressed format detected
-          return initSuperSplat(element);
-        }
+        // "chunk" could conceivably be used for other formats, and we would
+        // ideally check for the comment: Generated by SuperSplat 2.*
+        // but gsplat also outputs this format without such a comment.
+        // In order to support both, let's assume a "chunk" element should
+        // be interpreted as this format.
+        return initSuperSplat(element);
       }
       if (isSuperSplat) {
         return decodeSuperSplat(element);