OsCar — illustrative inline-four engine scene Four-cylinder engine by Artec 3D https://www.artec3d.com/3d-models/four-cylinder-engine https://www.artec3d.com/ License: Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ Changes: polygon reduction, orientation, normals, GLB conversion, mesh compression, new metal material, assembly and scroll-controlled positioning. Cylinder head, piston and crankshaft: NVIDIA SimReady Assets https://huggingface.co/datasets/nvidia/simready-assets GLB conversion: CodePawl https://huggingface.co/datasets/codepawl/simready-glb Assets: engineComponent_cylinder_head_a01, engineComponent_cylinder_piston_a01, engineComponent_crankshaft_b01. License: Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ Changes: polygon reduction, compression, resizing and illustrative assembly. Cover, belt, camera path, lighting and assembly created for this website. This scene combines assets from different sources for illustration; it is not an exact CAD reconstruction of a specific engine or of the generated reference image. No endorsement by the asset authors is implied. Three.js and meshoptimizer: MIT licenses, see vendor license files.