Pre-rendered Interactive Media Compositing for Real-Time Streaming
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Solution Overview
Problem
Real-time interactive computer graphics in client-server contexts often result in lower resolution, reduced detail, and lower visual quality due to network and CPU/GPU limitations, while non-real-time rendering requires extensive processing time, making it impractical for real-time customization and display.
Innovation Solution
Pre-rendering unique objects based on interaction logic, using two-pass depth and alpha compositing to eliminate visual inaccuracies, and streaming composited media to user devices for improved quality and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If real-time rendering is used for interactive media, then processing time is reduced and interactivity is achieved, but visual quality and resolution deteriorate due to network and CPU/GPU limitations
Solution Approach 1:
The system pre-renders unique objects and media elements before user interaction occurs. These pre-rendered elements are stored and then composited during runtime based on user actions. This allows high-quality rendering to be performed in advance without impacting real-time interactivity, as the actual user interaction only requires compositing pre-prepared elements rather than rendering from scratch.
2Manufacturing precision
If non-real-time rendering is used for high quality media, then visual quality and resolution are improved, but processing time increases to minutes or hours per frame
Solution Approach 1:
The rendering process is divided into two distinct phases: an offline pre-rendering phase where unique objects are rendered at high quality, and an online compositing phase where these elements are assembled in real-time based on user interaction. This segmentation allows the system to achieve high visual quality through pre-rendering while maintaining real-time responsiveness during actual use, as the runtime operation only requires compositing rather than full rendering.
3Ease of operation
If real-time customized computer graphics are rendered, then interactivity is achieved, but resolution and detail are reduced due to network and processing limitations
Solution Approach 1:
High-resolution unique objects are pre-rendered and stored before runtime. During user interaction, these pre-rendered elements are retrieved and composited based on user actions. This approach maintains high resolution and detail in the final output while enabling real-time interactivity, as the system only needs to perform compositing operations rather than full rendering during user interaction.
4Manufacturing precision
If high quality media is rendered in real-time, then visual quality is improved, but network bandwidth and processing power requirements increase significantly
Solution Approach 1:
The system performs computationally intensive rendering operations in advance, before user interaction begins. The pre-rendered unique objects are stored and then efficiently composited during runtime based on user actions. This shifts the processing power requirements from runtime to pre-processing time, allowing high visual quality to be achieved without demanding excessive processing power during actual user interaction and media delivery.
Data Source
AI summary
Interactive media is defined by objects and interaction logic; unique objects for the interactive media are determined according to the interaction logic. The unique objects are pre-rendered and saved. When a user interacts with the interactive media, the user device requests content. The pre-rendered unique elements are determined and composited according to two-pass depth and alpha compositing technique, which technique reduces composting complexity while maintaining quality. The resulting composited media is then streamed to the user device. Some non-pre-rendered objects may be rendered and/or composited by a server- or client-device at run-time.