Spring RTS Engine

1. what you call additive blending is multiplicative blending.
2. zero alpha is skipped, use something with lim epsilon -> 0 and epsilon != 0 for additive blending.

2. zero alpha is skipped, use something with lim epsilon -> 0 and epsilon != 0 for additive blending.

Non-zero alpha channel resulted in image being rendered with 1-bit transparency. Or is there a special case where all pixels have equal miniscule alpha?