[Toolkit feature]: IES Profile / Gobo Texture support for lights.

Contact Details (Optional)

@runestorm on the RTX Remix Discord

What is the context of the feature/improvement?

Several modders, myself included find the ability of shaping lights in remix very lacking and placing a physical plane in front of a light to add variation to it isn't always an option.
I believe adding support for IES profiles or gobo textures to lights will greatly improve the ability for modders to create visually interesting scenes.

Please describe the feature/improvement?

IES profiles are the industry standard for describing light distributions and there are thousands of these profiles available for use.
Many game engines support IES profiles natively and the files are plain ascii text, usually just interpreted as a series of intensity values that are wrapped around a sphere.

I've attached some documentations and examples.
How Unreal Engine handles IES profiles
Iray IES documation

Ideally support for both IES profiles and gobo textures should be added so that people can create all sorts of interesting lights. Especially with gobos, if those also support flipbooks and full color sampling of the gobo texture instead of just grayscale, then this could be used for image projectors, bat signals, flashlights, fire or candle flicker, caustics, animated lights in general and much more.

Please consider prioritizing this feature.

What would be your solution? (optional)

...

Version

2024.2.1

No files, tests, or code entry points are mentioned. Start by reviewing the linked Unreal Engine and Iray IES documentation, then define the supported IES and gobo behavior, including flipbooks and full-color sampling, and document concrete completion criteria.