Core Viewpoint - The rapid development of generative AI is pushing the boundaries of its creative capabilities, particularly in 3D scene generation, but existing methods face significant limitations in logical consistency and spatial relationships [2][3]. Group 1: Procedural Scene Programs (PSP) Framework - The PSP framework, developed by research teams from Brown University and UC San Diego, allows AI to generate executable scripts for 3D scene construction rather than directly outputting geometric parameters [3][8]. - This new paradigm enables AI to "write" the logic of scene generation, resulting in a highly editable, reusable, and structurally controllable output [3][9]. Group 2: Components of PSP - The system consists of two key components: 1. Procedural Scene Description Language (PSDL) for defining the rules of the generated world [9][10]. 2. Program Search module for automatic detection and correction of geometric errors post-execution [9][13]. - PSDL allows for the expression of spatial relationships through programming logic, enhancing the model's ability to define scene structure and layout [10][11]. Group 3: Error Correction Mechanism - The Program Search module identifies inconsistencies in structure and geometry, employing a symbolic correction mechanism that requires fewer iterations to fix errors compared to traditional methods [13][14]. - The system can correct most errors with an average of about 7 program modifications, significantly improving the physical consistency of generated scenes [14]. Group 4: Performance Comparison - In a comparison of 70 open-world scene prompts, PSP outperformed traditional methods, achieving a human preference rate of 82.9% against DeclBase and 94.3% against Holodeck, while also generating scenes faster, averaging about 38 seconds [16][17]. - An automated evaluation method corroborated these findings, showing a preference rate of 77.1% against DeclBase and 90.0% against Holodeck, aligning with human assessments [18]. Group 5: Significance and Future Outlook - The integration of programming logic with AI's imaginative capabilities through PSP enhances the controllability and interpretability of 3D content generation [20][21]. - This framework provides a new foundation for constructing virtual environments, game levels, and intelligent visual settings, marking a significant advancement in the field of AI-generated content [21].