Baked lightmap in assetbundles not work properly, what should i do to make it working.

Unity Engine
1

when i use Application.LoadLevelAsync(m_strScene);
it works properly like this:

2127552--139925--upload_2015-5-25_20-10-5.png
2127552--139925--upload_2015-5-25_20-10-5.png914×513 711 KB

but if i use BuildResources to build the scenes to assetbundles, the lightmap do not work ever, like this:
2127552--139926--upload_2015-5-25_20-13-4.png
2127552--139926--upload_2015-5-25_20-13-4.png913×514 457 KB

any help will be appreciated and my unity version is 5.0.2f1.

2

Anybody can help me? I doubt its a bug in unity 5.0 right now?I was really stucked on this problem.

3

Could you show the code you use to build asset bundle and to load from it?

4

I used like this:
BuildPipeline.BuildAssetBundles(GetBuildResourcePath(targetos), BuildAssetBundleOptions.DeterministicAssetBundle, targetos);
And load like this:
1.First, I load from memory, ab is compressed data, I read the bytes data and load ab use: AssetBundle.CreateFromMemory(download.data);

2.Second, when it is completed, I load the scene use:
LoadedAssetBundle bundle = AssetBundleManager.GetLoadedAssetBundle (m_AssetBundleName, out m_DownloadingError);
if (bundle != null)
{
if (m_IsAdditive)
m_Request = Application.LoadLevelAdditiveAsync (m_LevelName);
else
m_Request = Application.LoadLevelAsync (m_LevelName);

return false;
}
else
return true;

Normal assets works good.Am i doing wrong?

5

Others work properly except the baked lightmap. Please help me.

6

LoadLevelAdditive is not yet supported for new system, so please beware not to use it.
Otherwise code seems ok.

7

I do not use LoadLevelAdditive, I just only use LoadLevelAsync. When i load scenes, everything is ok except the baked lightmaps, I tried not build baked lightmaps as dependences, but still lightmaps seems not loaded successfully, it just black always. When I use the normal LoadLevelAsync, not use assetbundle, It works fine.

8

I am having a similar issue with asset bundles. I bake separate small lightmaps for individual prefabs. I save the prefab and its lightmaps into asset bundles. I store the index and scale/offset values per renderer on the prefab so that I can fix them up at runtime.

If I load one of these prefabs using Resources.Load the lightmaps work fine, but if I bundle the same prefab into an asset bundle and load it from there, the building looks as if the lightmap is solid white. Only difference between the two is one is in a bundle and the other is not.

9

Solved my problem. Looks like there was crap in my asset bundle. Took me a while but was able to get it to work.

One remaining issue with bundles though is that if the only thing that changes in a bundle is an .ezr file (lightmap) then it seems like Unity thinks it doesn’t need to update the bundle.