| 摘要 |
An apparatus for determining visibility of agents in a scene from multiple viewpoints in a there-dimensional environment. The apparatus comprises a programmable vertex processor operable to execute a plurality of vertex programs. A programmable fragment processor is provided that is operable to execute a plurality of pixel shaders programs, said vertex programs and said pixel shaders programs operable to render each object in the scene multiple times from multiple viewpoints. A processing unit is provided that is operable to analyze the rendered viewpoints to determine visibility area of the agents.
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