HMS Core Discovery Issue 13 Review Long Article - Building the Real World in Mobile Games

HMS Core Discovery's 13th live broadcast "Come on! "Building the Real World in Mobile Games" was successfully concluded on February 24. In this live broadcast, we, together with experts from Sanqi Games, shared the HMS Core graphics engine service (Scene Kit), especially the DDGI technology, with our friends. Application practice on the mobile terminal, let's review the wonderful content of this live broadcast together!

【Content Review】

1. Picture quality pioneer - what is DDGI technology.

2. Passing through the device - the technical competitiveness of DDGI on the mobile side.

3. The ambition of technology - the evolution trend of mobile game image quality technology.

【expert's point】

Leo, Product Manager, Graphics Engine Services, HMS

The current concept of the metaverse is very popular. I think the vision it builds is to move the real world into a 3D digital world, and the base of this 3D digital world is 3D graphics rendering.

Chopper, Senior Expert of Graphics Algorithm at Huawei 2012 Lab

Since DDGI relies on soft light tracking, soft light tracking technology is required to implement this solution on the mobile side. Since 2020, we have been working on the technical research of mobile light tracking, including the Ray shop's soft light pursuit interface. We have been looking forward to researching some of the advantages of ray tracing and providing developers with practical solutions.

Haoran, Senior Technical Manager of Sanqi Game Client

In recent years, Games has vigorously developed high-quality and diversified games, and our requirements for game quality are getting higher and higher The DDGI cooperation is our technical accumulation, and it also provides a new direction for our subsequent game quality improvement.

【Wonderful Q&A】

Q1: What is HMS Core Scene Kit?

A: HMS Core Scene Kit a 3D graphics rendering engine, provides developers with a lightweight 3D rendering engine and enhanced plug-in capabilities. The lightweight solution includes basic basic 3D elements and functions such as pipeline, animation, physics engine and particle effects, allowing developers to achieve 3D rendering capabilities and interaction capabilities without the need for advanced technology; and other game engines to achieve some differentiated capabilities. The enhanced plug-in capability opens up Huawei's accumulated graphics technologies to developers, including SlimLOD and GoodCulling plug-ins to improve rendering performance, real-time mobile ray tracing technology to improve rendering quality, and mobile real-time DDGI (Dynamic Diffuse Reflection) technology, etc. , to provide game developers with improved effects and performance.

Q2: What are the technical difficulties in the implementation of mobile DDGI technology?

A: DDGI (Dynamic Diffuse Global Illumination) is a 3D rendering algorithm that can effectively improve the realism of rendering. The DDGI on the PC side currently relies on hardware ray tracing, so the implementation of DDGI on the mobile terminal first needs to be based on the soft light pursuit intersector, and the software ray intersection operation is performed by calling the GPU. The mobile DDGI technology relies on the Ray shop high-efficiency optical pursuit intersection of HMS Core Scene Kit, and its intersection speed of about 60mRays/s makes mobile DDGI possible. In addition, based on the analysis of the SOC architecture of the mobile terminal and various methods to reduce the load, the DDGI rendering effect can be presented on the mobile terminal at a frame rate of 60fps.

Q3: In what scenarios can DDGI technology be applied?

A: The main application scenario of DDGI is the game scenario . DDGI has the most obvious effect on the line light. Generally, the parallel light is used as the main light source, which needs to reflect the dynamic changes of light and shadow in a large range of the scene, such as simulating the movement of sunlight, and the system of day and night changes is very suitable for the DDGI scheme. After using DDGI, the effective light source no longer needs to participate in baking. At the same time, DDGI can be used for dynamic objects and static objects in the scene to increase the GI effect and improve the texture of the picture. Since DDGI contributes the diffuse reflection component, the lighting effect of the scene will be greatly improved after using the DDGI scheme.

Q4: What is the speech trend of mobile ray tracing technology in the future?

A: The technology and applications of ray tracing on the mobile terminal are increasingly entering the public's field of vision. The soft ray tracing solution on the mobile terminal, including accelerated structure construction/ray traversal, etc., has also launched a trial version. How to efficiently reduce noise on the mobile terminal is the basis for the widespread use of mobile light tracking. More and more hardware manufacturers and game companies are gradually entering the field of mobile ray tracing, providing the technical basis for more realistic 3D rendering, and providing rendering bases and capabilities for more beautiful pictures in the future.

【understand more】

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