c# - How to achieve lighting like this in Unity for 2D games?

How could I accomplish a lighting effect something similar to this game?:

I'm not talking about the shadows but about the glowing/lighting effect on the crystals and the torches.

Anyone got any clues?

More images from the games steam page

Answer

I've never used Unity, so I don't know what it has to offer for this specific problem, but I would create this effect with one of these methods:

• Implement a bloom shader. This is where the brightest pixels are taken, blurred, then drawn over the scene. Here is the Wikipedia page on that.


• Simply create a "glow" texture. This could be, for example, a blurred circle. Color it appropriately and draw it on top of the glowing objects using an additive blend mode.

Here is what I mean by "glow texture"