call for help on the light problem

[baoyicai]

I create a scene using irrEdit. The scene has already been rendered with irredit and come with lightmaps. Afterwards,I load that .irr file, but when I added a lightnode in the scene, it seems there's no change on the screen. Object added later was not lighted.
What's the problem?Any one can help. Thanks a lot

[Warren]

i Think that lightmaps are exported apart from irredit, and imported on your scene apart too