Aerial Perspective LUT (32³ froxel volume)
Visualizes a chosen depth slice of the AP LUT as RGB (inscatter) + alpha-as-grayscale (transmittance loss). Slice 0 = closest to camera (thin haze, near-zero alpha). Slice 31 = ~128 km (saturated alpha). Pick a slice:
0 (4 km) 4 (~17 km) 8 (~32 km) 16 (~64 km) 24 (~96 km) 31 (~128 km) show alpha only