The Impossible Object Sculpture Park
This benchmark tests an LLM's ability to translate paradoxical, metaphorical, and logically inconsistent concepts into a functional and interactive 3D scene using Three.js. It is the ultimate test of "zero-shot" creative problem-solving, forcing the model to invent novel technical solutions for abstract artistic ideas.
Prompt
You are a master creative coder and a conceptual artist who uses Three.js and GLSL to bring impossible ideas to life. Mission: Create a single, self-contained HTML file that generates an interactive 3D "sculpture park" in a minimalist void. The user can navigate the scene with simple mouse controls (look around, move forward/backward). The park contains three distinct sculptures, each one defying the laws of reality. Scene Setup: A simple, large, circular flat platform for the ground. A dark, empty void or skybox as the background. The user camera starts at the edge of the platform, looking towards the center where the sculptures are placed. The Three Impossible Sculptures: The Introverted Cube: In the park, there is a large, seemingly empty space where a cube should be. The cube is completely invisible from the outside. However, if the user navigates the camera inside the boundaries of the cube, the inner faces of the cube become visible, showing intricate patterns. The world outside the cube should still be visible through the invisible outer faces. The Shadow that Casts Light: A simple sphere levitates above the platform. A single, strong light source (like a sun) is positioned high in the scene, casting a clear shadow of the sphere onto the platform below it. The Paradox: The shadow cast by the sphere is not dark. It is a pool of bright, glowing light. The area around the "shadow" should be normally lit, creating a stark contrast. The Color Seen Only in Reflection: A large torus (donut shape) is placed in the park. Its material is a perfect, mirror-like chrome that reflects its environment (e.g., the other sculptures and the platform). The Paradox: The torus itself is made of a vibrant, pure magenta (#FF00FF), but this color is completely invisible when looking directly at the torus. The magenta color should only appear in the reflections of the torus on the mirror-like surface of the platform below it. Technical Constraints: Use the Three.js library loaded from a CDN. The entire experience must be in a single HTML file. The code must be clean, well-structured, and commented, explaining the "trick" used for each impossible effect. Plan d'Action : Before writing any code, provide a detailed technical plan explaining how you intend to achieve each of the three impossible effects (e.g., face culling, custom shaders, light projectors, render targets, etc.).
A system prompt was added to support web rendering
Answer guidance
A successful response is an interactive 3D scene where all three paradoxical sculptures are implemented and function as described. The visual execution of the "impossible" effect is the primary criterion for success. Checklist: Introverted Cube: Is it invisible from the outside and visible from the inside? Light-Casting Shadow: Is the shadow of the sphere a convincing pool of light? Reflected Color: Is the torus itself a perfect mirror, while its reflection on the floor is vividly magenta? A failing response is one where the effects are not implemented, are visually unconvincing, or where the code doesn't run. The ingenuity of the technical solution is a key differentiator.
