CVisibilityPlugins and CRenderer fixes

src/modelinfo/MloModelInfo.h

@@ -5,7 +5,7 @@
 class CMloModelInfo : public CClumpModelInfo
 {
 public:
-	float field_34; // draw distance?
+	float drawDist;
 	int firstInstance;
 	int lastInstance;
 public:

src/modelinfo/XtraCompsModelInfo.h

@@ -7,6 +7,7 @@ class CXtraCompsModelInfo : public CClumpModelInfo
 	int field_34;
 public:
 	CXtraCompsModelInfo(void) : CClumpModelInfo(MITYPE_XTRACOMPS) { field_34 = 0; }
-	void SetClump(RpClump*) {};
 	void Shutdown(void) {};
+	RwObject *CreateInstance(void) { return nil; }
+	void SetClump(RpClump*) {};
 };