enable file caching, currently only for Wavefront .obj files. You can disable file caching using

pybullet.setPhysicsEngineParameter(enableFileCaching=0)
Allow VR camera tracking only using position tracking, no orientation tracking (use
pybullet.setVRCamera([posX,posY,posZ],trackObjectFlag=0 or pybullet.VR_CAMERA_TRACK_OBJECT_ORIENTATION)

examples/Importers/ImportObjDemo/LoadMeshFromObj.h

@@ -4,6 +4,14 @@
 
 struct GLInstanceGraphicsShape;
 
+#include"../../ThirdPartyLibs/Wavefront/tiny_obj_loader.h"
+
+void b3EnableFileCaching(int enable);
+
+std::string LoadFromCachedOrFromObj(
+    std::vector<tinyobj::shape_t>& shapes,   // [output]
+    const char* filename,
+    const char* mtl_basepath);
 
 GLInstanceGraphicsShape* LoadMeshFromObj(const char* relativeFileName, const char* materialPrefixPath);