How Visual Immersion Is Achieved in Three-Screen Six-Axis Racing Simulator

Abstract

With the in-depth integration of virtual reality technology, dynamic simulation technology and vehicle motion kinematics, three-screen six-axis racing simulators have become core equipment in scenarios such as racing training, e-sports entertainment, automobile enterprise R&D and testing, and science popularization experience halls. Compared with ordinary single-screen fixed-base racing simulators, three-screen six-axis racing simulators rely on the two-way coordination of three-screen surround visual architecture and six-degree-of-freedom dynamic motion platform to build an immersive experience close to real vehicle driving.

Visual immersion is the cornerstone of simulator experience, which directly determines users’ sense of substitution, spatial perception and control adaptability. From the dimensions of hardware layout, optical imaging, image splicing fusion, field of view construction, dynamic picture linkage, human visual physiological adaptation, and software & hardware collaborative optimization, this paper deeply analyzes the implementation logic, key technologies and application essentials of visual immersion of three-screen six-axis racing simulators, providing theoretical and practical reference for simulator R&D, equipment selection and venue implementation.

1. Introduction

The core value of a racing simulator lies in restoring the real racing visual scene, dynamic posture and control feedback. Human beings acquire more than 80% of environmental information through vision. Traditional single-screen racing simulators are limited by narrow viewing angle, missing edge pictures and lack of spatial wrapping sense. They can only realize basic picture display, and cannot create real presence of track surrounding, speed impact, curve tilting and overtaking.

A three-screen six-axis racing simulator consists of three high-definition display screens, professional splicing bracket, image fusion processor, high-definition image processing system, six-degree-of-freedom dynamic platform, racing cockpit, control peripherals and dedicated simulation software. The three screens construct a wide-field surround vision horizontally, while the six-axis platform simulates real vehicle movements such as acceleration, deceleration, roll, pitch, yaw and lifting. Real-time linkage between the two strengthens the immersion from both visual and physical perception.

In the field of e-sports entertainment, players pursue extreme sense of speed and track immersion; in professional driver training, it is necessary to highly restore road conditions, line of sight angle and driving environment; in science popularization venues, cultural tourism exhibition halls and commercial exhibition scenarios, three-screen six-axis racing simulators rely on strong visual wrapping to become core drainage experience equipment. All application values are based on a mature visual immersion system. This paper systematically disassembles the underlying logic and key technologies of visual immersion, and analyzes the complete implementation path from hardware construction to software calibration, optical design to human eye adaptation.

2. Three-Screen Hardware Layout: Physical Foundation of Visual Immersion

The primary premise of visual immersion is to break the single-screen vision limit and build a wide-angle surrounding scene in line with human natural vision. The physical layout of three screens is the hardware foundation to achieve this goal.

2.1 Selection of Three-Screen Size and Specification

Mainstream three-screen six-axis racing simulators widely adopt 32-inch, 43-inch and 49-inch high-definition e-sports displays, among which 43-inch commercial high-definition screens are the most widely used. Most screens adopt high refresh rate e-sports panels with refresh rates of 144Hz, 165Hz or even 240Hz, matched with 1080P and 2K resolution, and high-end models adopt 4K ultra HD curved screens.

High resolution restores track texture, road markings, vehicle details and roadside scenery clearly; high refresh rate solves picture smear, stutter and tearing during high-speed driving, which is the key to ensure smooth visual effect. At the same time, IPS panels with high color gamut and wide viewing angle are adopted, with a viewing angle of 178°, ensuring no color deviation and brightness attenuation when the driver looks left and right, avoiding damage to immersion caused by dark edges and color distortion.

2.2 Enclosed Angle Installation Structure of Three Screens

The three screens are not arranged in a straight line, but adopt an arc enclosed angle layout, which is the core design to build immersive vision. The conventional included angle between each screen is 30° to 45° inward bending. Centering on the driver’s eyes, the three screens form an arc wrapping structure.

The normal horizontal field of view of human single eye is about 120°, and the binocular effective fusion field of view is about 180°. A single display can only cover 30°~50° field of view with strong vision limitation. The three-screen layout can reach 150°~180° horizontal immersive field of view, perfectly fitting the natural vision range of human eyes.

The middle main screen covers the core vision of straight roads and curves; the left and right screens naturally cover the left and right lanes, guardrails, mountains, buildings and auditoriums, completely reproducing the naked eye viewing range of real racing driving and eliminating blind areas, creating an all-round wrapped visual experience physically.

2.3 Integrated Bracket and Viewing Distance Calibration

The three screens are equipped with customized high-strength metal splicing brackets to ensure fixed angle without shaking and offset. The bracket is integrally adapted to the racing cockpit to accurately control the viewing distance from human eyes to the screen. According to ergonomics calculation, the optimal viewing distance for 43-inch three screens is 1.2 to 1.5 meters. This distance ensures clear picture details and fills the human field of view without blank space or visual oppression.

In addition, the bracket supports fine adjustment of height and pitch angle, adapting to the line of sight of drivers of different heights, keeping the horizontal view consistent with the windscreen perspective of real racing cars, and further enhancing scene authenticity.

3. Image Fusion and Image Processing Technology: Eliminate Visual Fragmentation

If three independent screens display pictures directly, there will be problems such as black borders, picture faults and scene dislocation, which seriously destroy visual coherence and cannot form a complete track scene. Image fusion and edge correction are the core technologies to solve multi-screen splicing fragmentation and realize integrated visual pictures.

3.1 Ultra-Narrow Border Screen Selection

Hardware priority is given to ultra-narrow border e-sports screens with border width controlled within 1mm~3mm, minimizing the visual segmentation caused by physical black borders. High-end simulators even adopt customized borderless splicing screens, almost eliminating border occlusion and integrating three screens visually.

3.2 Multi-Screen Image Fusion Processor

The three-screen six-axis racing simulator is standard equipped with a multi-screen splicing fusion processor, supporting one-source multi-display, image segmentation, edge fading and geometric correction. The processor intelligently divides the full panoramic picture of racing simulation software according to the three-screen angle proportion. The middle screen displays the central field of view, and the left and right screens synchronously extend the lateral picture with unified proportion and perspective.

Meanwhile, the processor has edge fusion and fading technology to gradually transition the adjacent edge pictures of the three screens, weaken the visual presence of borders, make users hardly perceive the boundary of the three screens, and form an integrated arc large screen effect without fragmentation.

3.3 Unified Calibration of Color and Brightness

There are subtle differences in factory color, brightness and color temperature among different screens. Without calibration, problems such as brighter middle screen, darker side screens or inconsistent cold and warm colors will break the immersive atmosphere. The professional simulator system calibrates the brightness, contrast, color temperature and saturation of the three screens through image software, ensuring completely consistent color style, natural light and shadow transition, and unified coordination of track sky, road surface and scenery.

4. Simulation Software FOV Calibration: Match Real Racing Visual Logic

After the hardware is built, professional racing simulation software is required to calibrate the field of view, perspective proportion and lens parameters to make the three-screen pictures conform to the optical perspective principle of real racing cars, which is the software core of realizing visual immersion.

4.1 Accurate FOV Setting

FOV (Field of View) is the core parameter of simulator calibration. According to the physical angle, screen size and eye viewing distance of the three screens, the software accurately sets the horizontal FOV value to match the perspective law of real racing. Reasonable FOV can restore the effect of foreshortening, curve perspective and road depth, allowing drivers to accurately judge vehicle distance, curve route and speed through vision.

Unbalanced FOV will cause picture distortion, road deformation and speed perception distortion, which not only destroys immersion but also affects control feel. The advantage of three-screen layout is that it can set a larger FOV value and restore the visual sense of speed with roads receding rapidly on both sides during high-speed driving.

4.2 Panoramic Track Scene Rendering

Professional racing simulation software such as DCS, Assetto Corsa and Dirt support three-screen panoramic rendering mode, outputting 180° panoramic track pictures, covering straights, curves, ramps, rainy days, nights, mountain forests and urban tracks. The software accurately restores light and shadow changes, weather special effects, vehicle light and shadow, road reflection and tire smoke details. Combined with three-screen wide vision, users can immerse themselves in the visual impact of day and night alternation, weather changes, high-speed overtaking and curve drifting.

4.3 Dynamic Picture Linkage with Six-Axis Platform Posture

Visual immersion is not static picture display, but real-time synchronization of visual dynamics and physical perception. The six-degree-of-freedom platform simulates vehicle pitching when starting and braking, left and right rolling on curves, lifting and falling on bumpy roads, and yaw during high-speed cornering.

The simulation software collects platform attitude data in real time and synchronously adjusts the lens angle and perspective of the picture. The physical feeling of vehicle tilting is synchronized with the visual picture. The high synchronization of vision and body perception conforms to the human vestibular visual balance mechanism, greatly reducing dizziness, and making the visual scene a dynamically changing immersive space following driving actions.

5. Human Visual Physiological Adaptation: Enhance Immersion from Sensory Level

The visual design of three-screen six-axis racing simulator fully fits human physiological characteristics, optimizing viewing experience from refresh rate, dynamic response and visual fatigue control.

5.1 High Refresh Rate Eliminates Dynamic Smear

Racing speed is extremely fast, and low refresh rate screens are prone to smear, blurring and tearing. 144Hz and above high refresh rate screens refresh pictures twice per second, with fast dynamic response. The picture is clear and sharp without smear during high-speed cornering and straight sprint, restoring the ability of human eyes to capture dynamic scenes.

5.2 Low Blue Light and Flicker-Free Technology

During long-time immersive driving experience, human eyes focus on wide screens for a long time, which is easy to cause visual fatigue. The simulator adopts flicker-free and low blue light screens to reduce stimulation caused by stroboscopic and harmful blue light. The screen brightness is reasonably adjusted to avoid glare or dim gray pictures, ensuring comfort for long-term immersion.

5.3 Closed Cockpit Visual Environment

Professional three-screen six-axis racing simulators are equipped with enclosed racing cockpits with shading design, reducing ambient stray light reflection on the screen surface and avoiding light spots blocking pictures. The dim environment makes the three screens the only visual light source, weakening external interference and allowing users to focus completely on track pictures.

6. Application Value and Industry Significance

Through five dimensions including hardware structural design, optical display technology, image fusion processing, software FOV calibration and human physiological adaptation, the three-screen six-axis racing simulator achieves high-level visual immersion with great application value in multiple industries.

In the field of professional driver training, the highly restored wide-field track pictures allow drivers to be familiar with track routing, curve prediction and overtaking timing, truly restoring the visual environment of the arena and improving training effect. In e-sports and experience halls, strong visual wrapping and speed impact become core highlights to attract tourists, suitable for cultural tourism exhibition halls, video game cities and science popularization bases.

In automobile enterprise R&D, it can simulate driving vision under different road conditions and speeds, assisting vehicle cockpit vision design and ergonomic optimization. In campus traffic safety education, immersive visual scenes are used to simulate risks of illegal driving and high-speed travel for public education.

The equipment supports OEM customization, content replacement and open hardware interfaces, which can adjust visual parameters and replace track scenes according to industry needs. Mature visual immersion technology is the core support for its popularization across industries.

7. Conclusion

The visual immersion of three-screen six-axis racing simulator is the result of multi-dimensional coordination including hardware structure design, optical display technology, image fusion processing, simulation software calibration, six-axis dynamic linkage and human visual physiological adaptation.

It builds a wide field of view foundation through three-screen enclosed physical layout, eliminates multi-screen visual fragmentation through image fusion technology, restores real track perspective and scene details through professional simulation software, realizes vision and somatosensory synchronization with six-degree-of-freedom dynamic platform, and optimizes display effect combined with human visual physiological characteristics. Finally, it constructs an all-round, dead-angle-free and high-realism immersive racing visual space.

With the continuous upgrading of display technology, simulation algorithms and dynamic platform technology, the visual immersion effect will develop towards higher resolution, wider field of view, more real light and shadow rendering and lower delay linkage, continuously deeply engaging in e-sports entertainment, professional training, science popularization education and commercial exhibition scenarios, bringing users a driving experience closer to real racing.