glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
Fixes it, I was disabling GL_BLEND at the end of my drawing routine, oops!
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
Fixes it, I was disabling GL_BLEND at the end of my drawing routine, oops!