The scanner runs on a separate thread to avoid causing serious delays to the rendering, it is possible (but rare) that it can access a memory location that was previously valid but has since become invalid during the scan Exiting the game to a main menu page can also rarely cause a crash, this is because the game may no longer be using the known memory locations for orientation, but for something else (or have de-allocated them entirely), but VRBoost continues to write to them. If this is happening to you it is advisable to configure the VRBoost toggle hot-key and ensure you disable VRBoost before you exit the game to a menu. Scan Assist In order to improve the ability of the scanner to find orientation addresses, a scan-assist mode has been added for some of the more awkward games that directs the user to look in specific directions in order to isolate potential orientation addresses. At the end of the scanning stage, if the game requires scan-assist, you will be asked to look straight ahead (doesn’t have to be exact) and press the scan initialisation key (NumPad 5), this will initiate the scan-assist stage. Usually you will then be directed to look up before the countdown completes, and then down before the countdown completes. At this point the scanner should have found at least 1 potential candidate. If it fails with “No viable addresses”, just restart the scan (with Numpad5). Scan assist tips: When looking up or down, don’t try to look as far as possible in the direction, just make sure you are mostly looking up or down, potential injury might result if you do, and we will not be held responsible. If and when it completes, it says it has multiple candidates, but you don’t appear to have working head tracking, then use NUMPAD 4 or 6 to iterate through the candidate addresses (there should only be a few at most), you’ll know when you have selected the right one, as head tracking will instantly start to work. Creating Shader Profiles How to create a basic shader profile for currently unsupported games If Vireio doesn’t inject when the Perception App is running ensure you have copied the Vireio DLLs to the appropriate folder for your target game. Find out what game engine your game uses (examples: Unreal (UDK), Unity, Gamebryo, Source etc) Create a new entry in profiles.xml, for best results copy one that uses the same game engine, remove any value for VRboostRules and shaderModRules (set them to “”), set rollEnabled=”true” The game types can be seen below (these are taken directly from the vireio source, note that the presence of a game in the list below doesn’t mean it works/is supported): SOURCE = 100, /**< Source is a 3D video game engine developed by Valve Corporation. */ SOURCE_L4D = 101, /**< !! */ SOURCE_ESTER = 102, /**< !! */ SOURCE_STANLEY = 103, /**< !! */ UNREAL = 200, /**< The Unreal Engine is a game engine developed by Epic Games, first illustrated in the 1998 first-person shooter game Unreal. */ UNREAL_MIRROR = 201, /**< !! */ UNREAL_UT3 = 202, /**< !! */ UNREAL_BIOSHOCK = 203, /**< !! */ UNREAL_BIOSHOCK2 = 204, /**< !! */ UNREAL_BORDERLANDS = 210, /**< Borderlands(TM) */ EGO = 300, /**< Ego Game Technology Engine (more commonly referred to as Ego Engine or EGO, stylised ego) is a video game engine developed by Codemasters. */ EGO_DIRT = 301, /**< !! */ REALV = 400, /**< Real Virtuality is a proprietary computer game engine developed by Bohemia Interactive (BI), originally called Poseidon. */ REALV_ARMA = 401, /**< !! */ UNITY = 500, /**< Unity is a cross-platform game engine with a built-in IDE developed by Unity Technologies. */ UNITY_SLENDER = 501, /**< !! */ GAMEBRYO = 600, /**< Gamebryo 3D and LightSpeed engines are owned by Gamebase Co., Ltd. and Gamebase USA and have been used by several video game developers. */ GAMEBRYO_SKYRIM = 601, /**< Skyrim’s Creation Engine still has at least some Gamebryo in it. */