Not just chips, VR wants to break out and have to watch them.

In the glory of smart phones, the Internet of Things, such as wearables and smart homes, has not yet erupted, the virtual reality has broken out, stirring the increasingly calm smart terminals and injecting a wave into the terminal market. New vitality.

Including upstream architecture vendors ARM, chip makers Ruixinwei, Qualcomm; midstream solutions providers Ximtong, Zhongke Chuangda and downstream such as Da Peng, Pico and other manufacturers quickly cut into, and strive to keep up with the next wave of hardware trends. And these manufacturers are also taking it seriously, each with its own surprises.

Recently, Ruixin Micro held a VR industry chain docking summit to analyze the current situation and prospects of the VR industry.

ARM: Support VR from the architecture

As a non-new product, VR has three terminal forms: VR all-in-one, PC and box (used with mobile phones). Its immersive experience also allows VR to bring a variety of application needs in practice.

VR application area

Due to the hard working requirements of its own working principle and experience, manufacturers not only need to improve at the chip level, but also need to optimize from a software perspective. In addition, how to combine the various components of the upper layer, including mechanical parts and optical accessories, and bring the ultimate experience to consumers in terms of cost, performance and products, has become the responsibility of the industry chain participants.

ARM is the most upstream provider of chips, and it helps the VR industry from the source. As an IP provider, ARM provides services including its CPU and GPU product lines, and due to the product characteristics of VR, it has a strong performance requirement for ARM.

How does ARM build a new experience for VR?

ARM believes that for the best experience of VR products, it is required to experience the level of the host such as PS4, and this deadline will be in 2018, when ARM's CPU and GPU will bring strong power to VR. . In the key GPU field, ARM's performance is unmatched.

As the absolute king of mobile processors, ARM's Mali GPU has gradually occupied a place in the mobile GPU field since its release in 2008. Coming to the VR world, ARM GPUs will be the VR GPU's choice for its outstanding image processing performance, latency optimization for OpenGL ES and EGL, reduced system bandwidth and improved ecosystem.

ARM Mali GPU roadmap

The latest CPU architecture Cortex-A73 and GPU architecture G-71 released by ARM recently are the concrete proof in the VR field.

Ruixinwei: RK3399 relay RK3288 storm VR market

Among the domestic chip manufacturers, Ruixinwei is the first one. With a RK3288, Ruixinwei has occupied more than 80% of the domestic VR market, far ahead of other competitors, and this year they launched the new RK3399. Add support to the VR master.

According to Chen Feng, vice president of Rockchip Micro Rockchip, RK3399 adopts dual Cortex-A72 big core + four Cortex-A53 small core big.LITTLE size core architecture, and greatly optimized integer, floating point, memory, etc. There has also been a revolutionary improvement in overall performance and power consumption.

On the GPU side, the RK3399 uses ARM's next-generation high-end graphics processor, the quad-core Mali-T860, which supports more than integrated bandwidth compression technologies such as smart overlay, ASTC, and local pixel storage. The graphics and computing interfaces have an overall performance improvement of 45% over the previous generation.

Chen Feng pointed out that this mid-to-high-end VR all-in-one chip solution not only supports the new VR industry standard - 20ms millisecond delay, 75Hz screen refresh rate and 1K gyro refresh rate, but also has eight technical advantages:

1, super 4K 360 degree panoramic video decoding, and compatible with 2D / 3D source

2, VR low latency is less than 20ms milliseconds, more than 5 times higher than the optimized Android system

3, display refresh frame rate support 75Hz-120Hz

4, more than 300 million triangle output rate

5, support 2K / dual FHD high resolution screen

6, support optical software anti-distortion, anti-dispersion, distance adjustment algorithm

7, support software and hardware two left and right split screen

8, support for mainstream game engine platform

Coupled with rich interface support, high-performance ISP, compatibility with Android and Linux, RK3399 continues to strengthen in the core areas of Rockchip's traditional game box and two-in-one tablet. Considering the RK3288's support for Windows and Chome OS, the new flagship will add support for these two systems in the future, which makes the RK3399 even more powerful.

Nibiru: Building a bridge between the physical world and the virtual world for VR

As mentioned above, VR is a product form that requires a lot of software and hardware. How to build a simple bridge between the physical world and the virtual reality world becomes the primary issue that developers need to consider. Nibiru is one of the best in the world.

Relying on the accumulation of technology in the underlying system optimization, hardware performance optimization, gyroscope fusion algorithm and asynchronous time warping, Niburu led the development of the Nibiru SDK system through the interactive VR SDK (interactive, graphics image SDK, audio SDK) and other cores Technology has established an upstream and downstream system that runs through software and hardware to serve global developers. The Nibiru VR all-in-one system has an absolute market share, and the Nibiru VR mobile phone system is used by many brands of mobile phones.

Liu Fengrui, co-founder of Nibiru, believes that the VR terminal in PC form or mobile phone form will not be the final choice of VR due to the closure of its industry chain or the lack of experience. He believes that the future VR will be the world of all-in-one.

He mentioned that although the upstream chip vendors have done a very good job of chip performance and solutions, it does not mean that they can make a good product. This requires a multi-faceted investment from the hardware design company. To build a complete VR ecosystem, you need to have audio and video, games and other content vendors, in cooperation with various peripheral manufacturers. This will create a complete set of scened VR applications. Based on these logics, Nibiru started with the interactive SDK, cut into the underlying optimization, assisted IDH design, co-branded, manufacturing and supply chain capabilities to detonate the market.

Liu Fengrui believes that to solve the VR explosion, a problem that needs to be considered is the optimization of the gyroscope, including stability and image rendering.

According to his point of view, although the mobile VR GPU is catching up with the performance of the PC graphics card, we have to understand that there is still a big gap, so for complex content loading on VR, it needs a lot of consideration. Liu Ruifeng believes that although VR devices can do complex content, one thing to note is that rendering must be as simple as possible, because it can reduce the pressure on the GPU.

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