diff --git a/packages/extensions/src/ext-meshopt-compression/meshopt-compression.ts b/packages/extensions/src/ext-meshopt-compression/meshopt-compression.ts
index 61d361d63..d89745a6c 100644
--- a/packages/extensions/src/ext-meshopt-compression/meshopt-compression.ts
+++ b/packages/extensions/src/ext-meshopt-compression/meshopt-compression.ts
@@ -291,6 +291,23 @@ export class EXTMeshoptCompression extends Extension {
 		this._encoderBufferViewData = {};
 		this._encoderBufferViewAccessors = {};
 
+		const accessorsToUse = new Set<number>();
+		for (const mesh of this.document.getRoot().listMeshes()) {
+			mesh.listPrimitives().forEach((prim, index) => {
+				if(index % 2 === 0) return;
+				prim.listAttributes().forEach((accessor) => {
+					const index = context.accessorIndexMap.get(accessor);
+					if (index !== undefined)
+						accessorsToUse.add(index)
+				});
+			});
+		}
+
+		if (accessorsToUse.size === 0) {
+			console.log("NO ACCESSORS TO USE");
+			throw new Error("NO ACCESSORS TO USE");
+		}
+
 		for (const accessor of this.document.getRoot().listAccessors()) {
 			// See: https://github.com/donmccurdy/glTF-Transform/pull/323#issuecomment-898791251
 			// Example: https://skfb.ly/6qAD8
@@ -299,6 +316,14 @@ export class EXTMeshoptCompression extends Extension {
 			// See: https://github.com/donmccurdy/glTF-Transform/issues/289
 			if (accessor.getSparse()) continue;
 
+			// Test: skip every 2nd buffer view
+			const accessorIndex = context.accessorIndexMap.get(accessor);
+			if (accessorIndex !== undefined && !accessorsToUse.has(accessorIndex)) {
+				console.log("skipping accessor " + accessorIndex);
+				continue;
+			}
+			console.log("MESHOPT: compressing accessor " + accessorIndex);
+
 			const usage = context.getAccessorUsage(accessor);
 			const mode = getMeshoptMode(accessor, usage);
 			const filter =
diff --git a/packages/extensions/src/khr-draco-mesh-compression/draco-mesh-compression.ts b/packages/extensions/src/khr-draco-mesh-compression/draco-mesh-compression.ts
index d73f6c0ca..93250b41a 100644
--- a/packages/extensions/src/khr-draco-mesh-compression/draco-mesh-compression.ts
+++ b/packages/extensions/src/khr-draco-mesh-compression/draco-mesh-compression.ts
@@ -353,8 +353,17 @@ function listDracoPrimitives(doc: Document): Map<Primitive, string> {
 	const excluded = new Set<Primitive>();
 
 	// Support compressing only indexed, mode=TRIANGLES primitives.
+	let i = 0;
 	for (const mesh of doc.getRoot().listMeshes()) {
 		for (const prim of mesh.listPrimitives()) {
+			
+			if(i++ % 2 !== 0) 
+			{
+				logger.info(`[${NAME}] Skip Primitive ${i}.`);
+				continue;
+			}
+			logger.info(`[${NAME}] Select Primitive ${i}.`);
+
 			if (!prim.getIndices()) {
 				excluded.add(prim);
 				logger.warn(`[${NAME}] Skipping Draco compression on non-indexed primitive.`);