I Had downloaded 2.3, if now is 2.4 I need to Download. If I remeber the GFSDK_HBAO_distro_r2.3 was made for Unity 4+ So. If you want to use the x32(86) Version in unity 5 You need to Recompile The shaders that is in the example. See my other post. Then if you want The plugin for unity 5 x64 You need The lib folder , include folder and plugin source folder You need to download everything. And find x64 libraries. Then Follow the above steps in order to compile the plugin for x64. After Compilation, If you want the bouth x32 an x64 you need to Chage the name of the new plugin, Copy the HBAO_Plugin Rename it to HBAO_Plugin64 and the name of the script to HBAOPlus64 And in the script (HBAOPlus64) you need to change some line of code for script to call the new name of the plugin If not, Delete the x32 one and keep the x64 one with the same name See my video.! And my steps abobe.!