中文
1.1 Concept

Augmented reality is projecting virtual images in real scenes, enhance people's understanding and interaction with immersive reality, and increase people's virtual experience in reality. According to Ronald Azuma's summary in 1997, AR generally has three main characteristics: virtual-real combination, real-time interaction, and three-dimensional registration. In contrast to Virtual Reality, AR still exists in the real world, but it provides virtual information for coverage. All in all, VR users are part of the computer world, and AR aims to make computers a part of the real world.

This design guide was written by the designers and developers of 0glasses AR, and is suitable for AR development and design based on 0glasses AR smart glasses; it includes basic AR design ideas, design styles, interactive experiences, and 0glasses AR design cases.

1.2.1 AR Basic concept

Augmented Reality is a visual technology that combines the real world and virtual information content. Through computer technology's computing processing, AR seamlessly merges virtual objects with the real world, creating an immersive and attractive AR experience.

1.2.2 Real environment space

AR design is combines real space and virtual content. The realistic space includes both indoor closed environment and open outdoor public space. This requires the designer to first determine the usage scenarios of AR content, simulate any problems that may exist, and avoid them from the design source. Especially for open outdoor public spaces, due to the complex scenes and strong fluidity, there may be problems such as tracking and occlusion. In addition, the highly interactive scene experience needs to consider the potential safety hazards in different occasions.

1.2.3 Augmented Reality Space

Augmented Reality is a fusion of real space images captured by cameras and virtual content. By identifying objects in the real space and overlaying the virtual content in the real space, the virtual content looks similar to a part of the real world. While bringing visual impact and immersion, it will also confuse the vision of the experiencer, so it is necessary to have clear boundaries and instruction prompts at the same time to avoid potential problems.

1.3.1 Color selection

Compared with the traditional color selection suitable for the screen, the colors displayed in AR glasses will be different. The cool colors represented by black will appear more transparent and blend into the background. In contrast, bright warm colors will be more prominent.

1.3.2 Dimension ratio

In AR space design, the relationship between the size and proportion of virtual objects is particularly important, which directly affects the visual experience.

1.3.3 Text layout

AR text layout rules are the same as those on other device screens. It should have a clear, concise and simple layout to avoid distortion of text.

1.3.4 Font size

The font size has a profound impact on the user's reading and use. It is necessary to appropriately adjust different font sizes and apply uniform font styles according to the text distance and the amount of text information. It will help reduce visual fatigue and improve information efficiency.

1.3.5 Sound effects

In the overall AR experience, the auditory effect and the overall spatial sound effect is crucial as it will greatly affect the immersion experience. In the sound design and production, real and natural sound effects are used to accurately descend sound's orientation’ source to maintain the same attenuation ratio and distance, so that the overall spatial sound effect will be more natural, real, and clear.

1.4.1 Gesture Control

The user can select and control the content of the virtual object in the space with four different hand movements, including changes in posture such as position change and size scaling, and advancement of the content process. Gestures are different from traditional interaction methods, breaking the physical constraints of the real world and greatly improving AR interaction experience and efficiency. Here is a list of gestures currently supported

It should be noted that the recognition range of the gesture is within 60 ° of the fixed FOV of the camera, and the gesture must be displayed in a correct posture to be recognized. For example, when the palm is spread out and the fist is raised, the palm must be facing the camera. If the posture of the hand is skewed, the accuracy of recognition will be affected.

1.4.2 Voice control

Voice recognition input is a powerful and natural way of interaction. In different usage scenarios, voice instructions should be firm an quick. In the process of designing the entire voice interaction, use simple and clear voice commands, such as "OK", "Return", and "Next". Try to avoid lengthy phrases and sentences. At the same time, the user's regional accent differences should be considered, and arrangements should be more diversified to improve the recognition rate and accuracy of the voice input.