Schell Games is a highly talented group of artists, programmers, producers, and game designers led by game industry veteran Jesse Schell. We're the largest full-service education and entertainment game development company in the United States. Since 2002, we've worked with world-class clients and partners to create…
While browsing through the calibration profiles for UE4 and Disney GGX, I noticed ApplyGGXCurve-function with an exposure parameter. Can someone explain why is this curve (and exposure) needed?