This interactive simulation explores the fundamental concept of vector flux through surfaces in 3D space. You can manipulate surface geometry (choosing between spheres, tori, cylinders, and planes), adjust their position and orientation, and observe in real-time how these changes affect the flow of vectors through each surface. The visualization demonstrates key flux principles: how the dot product between field vectors and surface normals determines local flux density, why parallel surfaces capture maximum flow while perpendicular ones show zero flux, and how total flux depends on both field strength and surface area. Watch as colored vector arrows reveal the contributions to the flux integral (Φ = ∫∫ F·dA), with brighter hues indicating stronger flow contributions. The simulation helps build geometric intuition for why flux calculations depend on the cosine relationship between vectors and surfaces, while providing immediate visual feedback as you experiment with different configurations.