Using Lumen, niagara, and sprites with a sphere mask to showcase the potential of sprites that cast light. It seems like Epic has 'optimized' lumens ability since I last checked so that it is more difficult to get sprites to cast light. The necessary sprite size and emissive intensity have both grown substantially making the technique more difficult in modern UE5. Still worthwhile to pursue though as it can come together looking cool. I toggle the material to use transparency to showcase what the effect would look like during the demo without the sprites casting light. Pretty big difference.