Quote: "AGKV2 has additive blending built in... Otherwise you are probably going to have to settle for manually adjusting alpha particle values when they are overlapping, or some such trick."
Unfortunately I have 2000 particles and I don't really want to have to go through every particle for each particle (2000*2000). I do, however, have a clever idea involving a grid of "light values" which will fade over time. As each particle enters the (probably half-res) grid, they add a small amount to the light in that grid block. Each particle in that block gets a brighter colour according to the light. Hopefully I can manage from this
