Should Optix have its own resoucre variable similar to ogre?

Currently the Ogre and Ogre2 plugin leverage a separate environment variable/compiler definition to locate its resources (OGRE_RESOURCE_PATH and OGRE2_RESOURCE_PATH). In the case Optix it is using the IGN_RENDERING_RESOURCE_PATH; should it have its own variable for locating Optix specific resources similar to how it is done in the Ogre and Ogre2 plugin?

https://github.com/ignitionrobotics/ign-rendering/blob/bdf08866775e7a3f0953f7a2b802577199247242/optix/src/OptixRenderEngine.cc#L83-L87