Synthcat suggested I do some Additive blending for the bullets (trails?).
I’ve tinkered with Additive blending but haven’t had much success with it yet. I had a go at making my clouds, smoke and explosions use Additive blending but I just couldn’t get them to look acceptable.
As Eli mentions, the art assets themselves (textures) need special skill to look right with additive. I haven’t figured out quite how I should be producing them. Even my colorful explosions ended up looking like a white glare. Likewise for my smoke, which should darken rather than lighten as it gets thicker.
So far, I haven’t had much luck in finding a good explanation on how to produce good art for Additive blending.
Can anyone point me in the right direction?