Emissive modes is broken in Standard shader

Hi. I'm working on scene lightmapping and found a big problem. I need some objects with emission and bloom effect, but I do not need to affect it to the baked lighting. In this case I'm always used Realtime emission mode. But now even if it's enabled, emission from material anyway baking into lightmap like in Baked mode... Also this lighting looks terrible, many leaks and bugs.

Unity 2018.2.5f1



And another test in a simple scene:

Enlighten + emissive Baked:



Enlighten + emissive Realtime (after full rebake of course):



Progressive + emissive Baked:



Progressive + emissive Realtime:



As you can see, this bug happens only in Enlighten. Realtime emission mode work the same like a baked. Progressive render works fine with emission modes. (And for some reason we can't use Progressive in our game project). I hope guys from Unity will fix that very soon...

 

This isn't a bug, this is explicitly what the Realtime setting under the emissive property enables. If you don't want it to affect the global illumination, set that option to None.

https://docs.unity3d.com/Manual/StandardShaderMaterialParameterEmission.html

The setting only matters if it's used on a static game object. It's possible in the past you weren't baking with real time precomputed GI enabled in the scene's lighting setting, or were applying the material to non-static objects, both of which disable this feature.

 

I'd really like you to be right, but there's no option None, it was missed many time ago...



And anyway emissive mode should work equally between enlighten and progressive, but it doesn't.

 

Well, they removed that option and didn't update the documentation. Lovely. As I said before, setting that to Realtime enables the use of Precomputed Realtime GI for that object. If you don't want it to affect the lighting around it, you'll need to set the object to not be static (or, more explicitly, not be Lightmap Static). That will disable it from affecting the lightmap, in either realtime or baked mode. You could also set it to be baked with a black emissive color, then enable the emissive via script at runtime. It's unfortunate that None was removed as it would have handled this as you wanted without any other modifications.

Realtime Precompute GI is essentially the singular unique feature of Enlighten that no other lightmapping solution has an equivalent for. Technically you can have both the progressive lightmapper and realtime precomputed GI enabled, this just means both the progressive lightmapper and Enlighten are enabled at the same time.

It should be noted that the reason for the light leaking is that the realtime lightmap is significantly lower resolution than the baked lightmap.

 

I need to bake this objects witch has emissive materials without affecting to lightmap like it was in None mode. I'm not using Realtime GI, it's disabled. And I has too many objects and materials in a whole project in a different folders, I can't anytime turn it off before lightmapping, it's a stupid. I want None mode back or fixed Realtime mode...

 

Well, you can still do this, by working around Unity's custom inspector.

Select your material. Right click on the inspector tab and select "Debug". You'll now see a list of properties, including one called "Lightmap Flags" or "m_LighmapFlags". Set that value to 0. Right click on the inspector tab (now showing "Debug") and set it back to "Normal". In the material inspector it'll now show nothing for the Global Illumination option. If you click on that again, it'll set it to realtime or baked, but it is now in None mode.

 

Thanks, will try it tomorrow. Sounds much better then wait for a few years while Unity devs will fix that...

 

Glad to hear it, when we can download patch?