The company AMD during the fair GDC 2015 praised the initiative, which aims to unite the efforts of partners and new technologies to provide the best possible experience for users of systems VR (virtual reality). This initiative will also serve to developers so they can move their ideas in a virtual world.

AMD LiquidVR: technology to enhance the realism of Virtual Reality



The first solution, which was established in the framework of the presented concept is LiquidVR, which is a set of innovative technologies to produce unique content VR AMD hardware, and at the same time to ensure optimized operation, resulting in a more comfortable use of VR systems. Furthermore, this technology can increase hardware compatibility kits VR goggles. A set of development tools (SDK) LiquidVR provide access to technology that will help identify potential problems, and increase comfort and hardware compatibility. All this will help the industry achieve the level of realism, which was not yet the VR systems.

Viewed in terms of virtual reality concept of “presence” is described as a feeling of being physically present in a simulated, not the physical world that reacts and acts like a real one. The biggest obstacle to achieving this goal is the delay that occurs between movement and vision. This delay is the time that elapses from the moment when the user moves his head, until he or she have before my eyes the image of sufficiently altered perspective. Reduce this delay is critical to achieve the appropriate experience and comfort in the use of VR systems.

In order to reduce the delay necessary to create a mechanism that takes into account each element involved in creating the image from the video card, the application for the glasses display technology. Subsystems AMD hardware and software play a major role in the alignment of delays and with the introduction of LiquidVR AMD helps solve this problem by providing a completely smooth operation and responsiveness for all content creators. Thanks to AMD will be using equipment that they can achieve the maximum realism in VR environments.

AMD today released alpha version for registered developers LiquidVR SDK 1.0, and its main functions are:

  • Async Shaders for smooth head-tracking enabling Hardware-Accelerated Time Warp, a technology that uses updated information on a user’s head position after a frame has been rendered and then warps the image to reflect the new viewpoint just before sending it to a VR headset, effectively minimizing latency between when a user turns their head and what appears on screen.

  • Affinity Multi-GPU for scalable rendering, a technology that allows multiple GPUs to work together to improve frame rates in VR applications by allowing them to assign work to run on specific GPUs. Each GPU renders the viewpoint from one eye, and then composites the outputs into a single stereo 3D image. With this technology, multi-GPU configurations become ideal for high performance VR rendering, delivering high frame rates for a smoother experience.

  • Latest data latch for smooth head-tracking, a programming mechanism that helps get head tracking data from the head-mounted display to the GPU as quickly as possible by binding data as close to real-time as possible, practically eliminating any API overhead and removing latency.

  • Direct-to-display for intuitively attaching VR headsets, to deliver a seamless plug-and-play virtual reality experience from an AMD Radeon™ graphics card to a connected VR headset, while enabling features such as booting directly to the display or using extended display features within Windows.

“Content, comfort and compatibility are the foundation of our vision for virtual reality in AMD, and now we LiquidVR introducing a major step forward in all three areas. By introducing this technology we work with the entire ecosystem of partners to enable the creation of solutions for some of the biggest problems of VR systems while providing tools that developers will be able to realize a completely new ideas, “ said Raja Koduri, corporate vice president of Visual Computing at AMD. “AMD will continue to work closely with all stakeholders VR ecosystem to provide new technologies LiquidVR which will eventually allow every bit of virtual reality up to faithfully reproduce the real world. “


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