Aye, no problem. Was really looking toward Doom 3 support since now that I tested Quake map on Gear VR, I see that performance is great. Next step is Doom 3 and baked lighting with directional maps. The only way I can test it is by using your plugin 
Quake doesn’t have image textures in a folder (maybe texture replacement mods do, but not original textures). Original textures/images are either in .BSP files or in .WAD files. Does plugin load them from BSP/WAD ? Or should I just have them loose in the folder beforehand ?
Btw, there is some good info on Quake textures: Textures - Quake Wiki