Scene rendering method and apparatus for large-scale digital twin model, device, medium, and product

A scene rendering apparatus for a digital twin model, comprising:

• a grid cell data determining module, configured to reconstruct, in an application phase, for any digital twin model, grid cells based on model information and texture information to determine grid cell data, wherein the digital twin model is a model with a closed boundary;
• a grid rendering module, configured to render, in a multi-threaded collaborative grid rendering phase, the model with the grid cells as an object, start a corresponding thread group in a grid shader based on the grid cell data, and construct a shared cache field in a GPU, wherein the thread group comprises a plurality of sub-threads, and each primitive in the grid cells corresponds to one or more sub-threads of the plurality of sub-threads;
• direct access between the plurality of sub-threads is enabled;
• the shared cache field is configured to store computational results of the plurality of sub-threads;
• and the computational results comprise grid rendering data, logical and dynamic data, and environmental data;
• and
• a rasterization processing module, configured to perform, in a rasterization phase, rasterization processing on the computational results in the shared cache field to determine a rendered scene.

A computer device, comprising:

• a memory,
• a processor, and
• a computer program, stored in the memory and executable on the processor, wherein the processor executes the computer program to implement a scene rendering method;
• wherein the scene rendering method comprises:
• reconstructing, in an application phase, for any digital twin model, grid cells based on model information and texture information to determine grid cell data, wherein the digital twin model is a model with a closed boundary;
• rendering, in a multi-threaded collaborative grid rendering phase, the model with the grid cells as an object, starting a corresponding thread group in a grid shader based on the grid cell data, and constructing a shared cache field in a GPU, wherein the thread group comprises a plurality of sub-threads, and each primitive in the grid cells corresponds to one or more sub-threads of the plurality of sub-threads;
• direct access between the plurality of sub-threads is enabled;
• the shared cache field is configured to store computational results of the plurality of sub-threads;
• and the computational results comprise grid rendering data, logical and dynamic data, and environmental data;
• and
• performing, in a rasterization phase, rasterization processing on the computational results in the shared cache field to determine a rendered scene.