You can find several posts from @pailhead here 
Also, one of very good ones is this, from @Mugen87: Points transparent textures depth artifacts (soft particles) - #21 by Mugen87
Yeah, and “The Book of Shaders”,of course
You can find several posts from @pailhead here
Also, one of very good ones is this, from @Mugen87: Points transparent textures depth artifacts (soft particles) - #21 by Mugen87
Yeah, and “The Book of Shaders”,of course