2x2 grid, 16:9. Subject: complex engines (e.g., SpaceX Rocket Engine and 3 other complex engines). Isometric 3D view. LEFT SIDE (0% to 50%): rough white chalk lines, accurate mathematical equations and data points, measurement arrows, grid lines on blueprint paper. RIGHT SIDE (50% to 100%): hyper-realistic, polished metal, soot, scorch marks, cinematic lighting. CENTER (The Transition): seamlessly blend the sketch lines into the physical 3D geometry; wireframes turning into solid metal. Background: linear gradient (AI-inferred color to Studio Grey seamless).