A Web3D cloud rendering system for dynamic real-time lighting and shadow based on device power
畅 刘, 小军 刘, 金原 贾, 识溥 徐, 乾 张, 晨曦 黄, 欣 黄 · Scientia Sinica Informationis · 2021
In this work, a Web3D collaborative cloud rendering system for lighting and shadow is proposed, which distributes rendering tasks based on the hardware power of the Web front-end. If the web front-end hardware device has a strong power, the system will allocate more complex rendering tasks to it, and the cloud back-end rendering tasks will be reduced accordingly. Conversely, if the front-hand hardware has limited power, its rendering tasks will decrease, whereas the rendering tasks allocated to the cloud back-end will increase. Based on the above strategy, four key real-time lighting-and-shadow rendering algorithms were simultaneously deployed at the front-and-back ends of the system. Finally, the rationality of the deployment was verified by analyzing various data, such as the frame rate of the algorithm, the hardware use efficiency, and the performance of lighting and shadow rendering.