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  1. I want to perform something like the video Raycasting video where using raycasting , I could get the object display name in unreal. In this video, I used first person camera to get the world Location and world rotation. Now, I would like to do the same using user gaze data to observe at which objects the user is gazing currently. I have used many blueprints using getGazedata but nothing seems to be working efficiently like the video above. I have attached a blueprint as an example of what I am currently trying to do. Gazedata blueprint Please tell me how can I get something like the video above using the Sranipal eye tracking data using blueprints in unreal.
  2. Hi! I have the following hardware: HTC Vive Eye Pro 2*NVidia RTX 3090 GPUs What I want to achieve: interactive ray tracing for a complex scene where the rays (e.g., primary rays) can be modified with respect to the gaze position. Question: What is the best available API/ Engine/ Library to implement gaze-contingent ray tracing algorithm? Or for example, I extend to work on path tracing algorithm. First I tried the unity3D, however, I have found the unity3d VR still support the directx11, and have not been updated to directx12, so ray tracing is not supported. From the Unity discussion forum: RTX is not supported in VR in UE4 as of 4.26 There is a publication on RayVR, author used DirectX Raytracing-Falcor to enable ray tracing on VR (tr-05-2019.pdf (impa.br)), however the code repository is not available for public Few publications, worked on VR and ray tracing used OpenCL RadeonRays I would really appreciate if the experts show me a way that I should use to achieve my goal. I am really lost and randomly trying different path.
  3. Hi! The Unity VR is currently based on the DirectX 11, and no further upgradation to DX12 or latest DX Raytracing pipeline. So, if I want to develop a scene with ray tracing in Unity game engine, the only available option is using the HDRP; however, it does not support the VR. My question is, how to develop ray traced scene for my HTC Vive Pro Eye HMD?
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