Virtual Camera Speed Control for Aspect Ratio
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Solution Overview
Problem
Conventional game apparatuses fail to control the moving speed of a virtual camera effectively in accordance with the aspect ratio of the screen, leading to difficulties in observing images, especially when the camera turns around on wider screens.
Innovation Solution
A game program that acquires the aspect ratio of the display and adjusts the moving speed of the virtual camera accordingly, allowing for optimal movement control and image generation based on the screen ratio, including setting turn-around speeds and crosswise visual fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the virtual camera moves at the same speed on both 4:3 and 16:9 screens, then the camera responds consistently across different aspect ratios, but the image at the edge of the screen moves too quickly on 16:9 screens making it difficult to observe
Solution Approach 1:
The patent changes the camera moving speed parameter based on the screen aspect ratio. Specifically, when the aspect ratio is 16:9, the camera moving speed is set to a lower value compared to 4:3 screens. This parameter adjustment ensures that the image at the screen edge moves at an observable speed while maintaining appropriate camera responsiveness for each display format.
2Productivity
If the virtual camera turns around quickly to follow player actions, then the camera responds dynamically to gameplay, but the image moves too rapidly at the screen edges on wider displays reducing observability
Solution Approach 1:
The patent adjusts the turn-around speed parameter of the virtual camera based on the detected screen aspect ratio. For 16:9 screens, the turn-around speed is reduced compared to 4:3 screens, allowing the camera to follow player actions dynamically while preventing the image from moving too rapidly at the screen edges, thus maintaining observability during active gameplay.
3Productivity
If the camera moving speed is increased to improve gameplay responsiveness, then the camera follows player actions more dynamically, but it becomes difficult to observe the image at the screen edges
Solution Approach 1:
The patent implements aspect ratio-based parameter adjustment for camera moving speed. By detecting whether the screen is 4:3 or 16:9, the system automatically selects appropriate speed parameters that balance gameplay responsiveness with image observability. This ensures that increased responsiveness does not compromise the player's ability to observe the game image at screen edges.
Data Source
AI summary
A game apparatus includes a CPU, and displays on a monitor a scene viewed from a virtual camera moving in a virtual game space. In the game apparatus, an aspect ratio of an image to be displayed on the monitor is acquired, and a moving speed of the virtual camera is set based on the aspect ratio. For example, a visual field of the virtual camera is set based on the aspect ratio, and as the image is laterally longer with respect to a longitudinal thereof, the visual field in a crosswise direction is made wider, and therefore a crosswise moving speed of the virtual camera is made smaller.