Cheap bloom for a Canvas 2D game in 8 lines (no WebGL)

Neon games look flat without bloom: the soft light that bleeds around bright things. The usual advice is "switch to WebGL and write a post-process shader". For my Canvas 2D boss-rush game I wanted the glow without porting the renderer, so I did it with the 2D context itself. The whole pass is 8 lines and costs almost nothing (numbers at the end).... Weiterlesen