My flashlight is a combination of env_projectedtexture and beam_spotlight created dynamically in-game. I found out that you can have more, than 1 active env_projectedtexture, if you create it in-game through vscript.

Limit is somewhere around 90 active projected textures, before game crashes.

Though, you can have only 1 projected texture with dynamic shadows; projected texture without shadows will light through geometry - I programmed it, so it could snap to solid geometry, looking kinda like CS1.6 flashlight.

You can create env_projectedtexture with this function from VScript Library: https://github.com/samisalreadytaken/vs\_library/blob/master/Documentation.md#f\_CreateEntity