Oculus Research, Oculus' R&D department recently published a research paper that explores the multifocal display technology assisted by eye tracking and explains the “perceptual†test bench created by the company. Current consumer VR heads are typically presented to the user with a single, fixed focus display plane, which can result in so-called visual axis focus conflicts. Since the screen does not provide a true focus, the user is unable to focus properly, resulting in a less comfortable viewing experience. The display plane means a slice in the depth of the rendered image. With accurate eye tracking and multiple independent display planes (selected from different areas in the front and rear), the blur of the retina can be simulated. The Oculus lab is even further. Oculus said that the goal of the project is to provide a lab bench to better understand the computational needs of such a system and the accuracy of the hardware. The system not only tracks the user's gaze direction, but also adjusts multiple screens to present the correct image to the eyes and head, which was previously impossible with multifocal displays. "We hope to improve the accuracy of the measurement response while presenting the highest image measurements," said Oculus Research scientist Kevin MacKenzie. “What makes us wonder is how, after decades of research by visual scientists, how the eye-focusing system works and what stimuli to use to optimize focus are still not well explained. "MacKenzie said. “The most exciting part of this system in the build process is that we can answer a lot of questions raised in the experiments – these problems can only be solved by a combination of this level of stimulus presentation and eye movement measurement.†The Oculus team also said that their display solutions are compatible with existing GPU tools, achieving "three orders of magnitude improvement over previous work efficiency." The team said that this will help to create a practical eye tracking, while pushing the rendering requirements of multi-focus display technology to continue to rise.
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