Real-Time 3D Viewer
Interactive WebGL scene — change camera, material, and lighting in real time. Drag to rotate the model with the auto-rotate slider, or explore every setting. Runs in your browser — no server call, no tracking.
Object
Material (PBR)
Camera
Lighting
Real-Time vs. Offline Rendering
This scene redraws up to 60 times a second using your GPU's rasterizer — the same approach game engines use. Offline renderers (used for the Render Calculator's estimates elsewhere on this site) trace individual light rays for physical accuracy, trading real-time speed for realism.
Focal Length Sets the FOV
Switching the lens preset here recalculates field of view using the exact same formula as the Camera & Optics calculator — a 35mm sensor width divided into twice the focal length, run through arctangent. Real optics, not an arbitrary slider mapping.
Three-Point Lighting
Key, fill, and ambient lights here mirror classic three-point lighting from photography and film — a strong key light defines form and shadow direction, a softer fill light reduces harsh shadows, and ambient light provides an overall base level so nothing goes pure black.