Hey, guys,
I met a small question here, that is, when I use the sprite in the level, its black edge couldn't disappear after running the lite-c code. Even I had the command 'd3d_autotransparency = ON;' in the main function, the terrible black is still there. Furthermore, I remember that the black part of a sprite would be transparent in a level, which is mentioned in the GS manual. I'm at a loss with it now and really hope the one who knows it could give me an answer.

Thanks and Best wishes!!