diff -r e6faeffed1d1 -r b4beff48bb7a src/polygoncache.h
--- a/src/polygoncache.h	Wed May 25 17:25:24 2022 +0300
+++ b/src/polygoncache.h	Wed May 25 17:42:02 2022 +0300
@@ -2,18 +2,13 @@
 #include "main.h"
 #include "model.h"
 
-class PolygonCache : QObject
+struct PolygonCache
 {
-	Q_OBJECT
-public:
-	PolygonCache(Model* model);
-	const std::vector<gl::Polygon>& getPolygons(class DocumentManager* documents);
-private:
-	void getObjectPolygons(
-		const int index,
-		std::vector<gl::Polygon>& polygons_out,
-		ldraw::GetPolygonsContext* context) const;
-	Model* const model;
 	std::vector<gl::Polygon> cachedPolygons;
 	bool needRecache = true;
 };
+
+const std::vector<gl::Polygon>& getCachedPolygons(
+	PolygonCache* cache,
+	Model* model,
+	class DocumentManager* documents);