THE TERRELL-PENROSE EFFECT

1. WHAT AM I SEEING?

OBSERVED REALITY (Colored Mesh): This is what you would actually see with your eyes. Light from the back of the object takes longer to reach you than light from the front. This delay distorts the image, causing it to appear ROTATED rather than flattened. This is the Terrell-Penrose effect.

THE GHOST FRAME (White Wireframe): This represents PHYSICAL REALITY (Lorentz Contraction). In your frame of reference, the object truly IS flattened into a pancake. The ghost frame visualizes this simultaneous coordinate geometry, which you can never see directly because light takes time to travel.

2. THE CANCELLATION

Notice that when you enable both GHOST and CONTRACT:
The physical object is flat (Ghost), but the light delay stretches the receding side back out (Visual). Effectively, the Light Delay cancels out the Lorentz Contraction, restoring the appearance of a sphere, but creating an illusory rotation.

3. DOPPLER SHIFT

> BLUE/PURPLE: Approaching (High Energy / Fast Visual Time).
> RED: Receding (Low Energy / Slow Visual Time).
> GREEN: Neutral. (Matching Speed).

4. CONTROLS

W / S : Thrust (Forward/Back).
A / D : Thrust (Left/Right).
Q / E : Roll (Desktop). PINCH : Roll (Mobile).
SPACE (TAP) : Auto-Stop (Brake).
H : Normalize Horizon (Stabilize).
MOUSE / DRAG : Look (Screen Relative).