Real - Time lighting via 18% grey sphere

Hello,
I'm from the Visual Effects side of things so I am hoping you can cover (or uncover) how to extract lighting information from a Grey sphere in Real - Time :
It does not have to be very accurate.

I am developing for Microsoft's Hololens.
https://www.microsoft.com/microsoft-hololens/en-us

It would be terrific if I could sample the lighting from a real environment (via a Reflection and a grey probe) to be able to integrate CG objects better into their surroundings.

Have a read of the excellent article from the makers of Unreal Engine to understand how Light & reflections are captured for use in VFX & Game engines:
https://www.unrealengine.com/blog/updated-lighting-in-templates

Can you create a script / algorithm that can :
1. capture diffuse lighting and direction from a grey matte finish sphere in real time.
2. It does not have to be accurate. Any progress via automation is a win for the Mixed Reality industry.

Do let me know If I have not been very clear in explaining what I'm going after.
Cheers,
behram

Aucun fichier de projet, test ou point d’entrée n’est mentionné. Commencez par lire l’article lié sur l’éclairage d’Unreal Engine et le contexte de HoloLens, puis définissez comment un script ou un algorithme en temps réel capturerait l’éclairage diffus et sa direction à partir d’une sphère grise à 18 % ; le travail sera considéré comme terminé lorsqu’il produira une approche automatisée approximative qui fonctionne.

Rédigé par le modèle d'indexation à partir du texte de l'issue.