i've been making some models recently for a space shooter plugin that a friend has been writing. little spaceships that you can fly around and shoot at other little spaceships type of thing. when you hit one of them, it is meant to give a brief red glow

but for some reason, some of the models dont glow properly. it's as if the additive effect has been removed from the glow, and is rendered solid black instead.

this has happened with almost half the models i've made, and even though i fixed it on most by messing around with the model in milkshape and recompiling it, i still don't know exactly what i did that made the difference.
anyone help?


