What is a key feature of Photometric Lights?

What is a key feature of Photometric Lights?

• A. Only support RGB colors.
• B. Use photometric values to define lights as in the real world.
• C. Cannot import external photometric files.
• D. Are deprecated.

Answer: (B)

Photometric lights are defined by real-world light data that describes how a fixture emits light, not just by simple color values. Their key feature is using photometric data—such as lumens or candela—and a distribution profile (often from IES files) to specify how light spreads in different directions. This lets the light mimic actual fixtures, with a realistic beam shape, falloff, and intensity. You can import external photometric files to drive that distribution, giving precise control over how the light interacts with the scene. They aren’t limited to RGB colors, and they aren’t deprecated, making them the go-to choice for accurate architectural and product lighting in 3D scenes.

Photometric lights are defined by real-world light data that describes how a fixture emits light, not just by simple color values. Their key feature is using photometric data—such as lumens or candela—and a distribution profile (often from IES files) to specify how light spreads in different directions. This lets the light mimic actual fixtures, with a realistic beam shape, falloff, and intensity. You can import external photometric files to drive that distribution, giving precise control over how the light interacts with the scene. They aren’t limited to RGB colors, and they aren’t deprecated, making them the go-to choice for accurate architectural and product lighting in 3D scenes.