Unity 5 - lighting, lightmapping and bugs

Hi there. Sorry for my bad english. I makes some interiors in Unity 5. There is no tutorials about this theme, i try to adjust all random) This is the best what i do now, you can see my lightmap settings on the first screenshot. I love lightmapping and using it everywhere.






I'm not very happy with the result. Basically there are some problems:

The interior is very dark, it is necessary to use Tonemapping (Unity Pro only). Because of this, many dark areas do not look nice:




I found that solves this problem is turning on HDR on the camera:



But... Unity 5 have very old bug. If we using Reflection probes + Tonemapping + HDR - screen is flickering with black... I sent Bugreport. This is a very old problem, I would like that Unity Team corrected it soon. It interferes with work in the Scene View, constantly have to disable components.

Other Lighting I have done only with the help of Sun (Directional light with 0.5 intensity) and Sky (Ambient Source is Default Skybox) and some point lights in a bathroom.

Another my problem is many many lightmapping bugs:



I very much hope that this will also be fixed... Its not a problem with my models, all meshes is clean and have good quality.

Maybe these nuances will be for someone useful. And I will be very grateful to the advice of experienced people how to improve the interior lighting

 

Moved into Unity 5 forum as it might be more specific to your cause.

 

@homerender Go to Window -> Lighting -> under Baked GI -> uncheck Compressed. If you want more quality Increase baked resolution.

 

This is bad for RAM and not help with bugs

 

What platform are you targeting? Cuz I do what you do. I do it for Mobile and PC. For mobile I bake lightmaps and for PC I use mixed mode.

 

Does Arealights work for you? For me they aren't working!

 

PC

 

There is bug, Area lights not working if scale less 0.1

 

@homerender Can I know what 3D App you use to make your models? I use sketchup. I'm planning to use 3DsMax. What would you suggest?

 

If you are new in 3D modeling, I recommend learning Blender, since it's free.

 

@homerender Thank you. I'm not new to 3D modelling . I just started using sketchup. What do you use? Can you tell me what Post Process do u use after lightmapping? I use Tone mapping. And also what lights u use in your scene? Spot or Area or Both Checked your Website and tried Web Demo of a Room. It is awesome. Now I'm trying to make a scene like you.

 

This is done in Unity 5. The previous in Unity 4.6

 

I have the same problem. I have summited a bug.
http://forum.unity3d.com/threads/gi-problem.283394/

You say turning on HDR solves problem. I tried it but no way, still same. However, my materials do not use albedo texture. They are just materials with albedo color. Can you please remove your albedo textures and look if problems are still there?

 

I use a separate light sources, depending on the situation.

If using HDR + Tonemappng (Adaptive Reinhard) + Reflection Probes.

 

Hello! 663915

 

Yay!

Yes, i use beta 20. I found cause of the problem - this is a curtains. If i remove it all baked good. However, I do not understand why they have caused a problem. The model has no bugs.

 

@SpiriTx i found new problem. I make this awesome sofa))

Unwrap is good. That is why i not check "generate lightmap UV's". But....



GI Charting looks stretched... Why? What does it depend?



If I put a tick "Generate lightmap UV's" GI Charting it looks even worse.

 

Hi! oh.. maybe i can send only model?

 

sure, please submit a working unity scene with the sofa in that has the issue confirmed for you

Unity will email a case number back to you within 10 mins or so, then just leave that number here, many thanks.

 

I sent it to @KEngelstoft in PM, its for commercial use for Asset Store

 

Quick question: does your sofa mirror uvs?

re asset store - it doesn't matter, talking about the bug reporter.... this allows you to submit things only unity staff will see.

 

hmm.... Maybe.... I mirror model after unwrapping. this may be the reason?

 

It's all good extra information

 

looks stretched and this is not my unwrap. Autounwrapping is not good.

 

Well it won't get fixed unless you can send unity the actual scene via the bug reporter. it's safe and nobody else will have your attachment,

 

Bug Case 665082

bug report again does not work, still the same error

 

Thanks for this, Unity staff will be around to help soon

 

Hi, for the moment being until we get that fixed, you can still use the old bug reporter (it's included in the installation path). But as Hippo says - we are looking into this

 

Thank you for the report about the problem.
This is a bug in BugReporter. We are working on it and it will be fixed in next release of BugReporter. We have a fix, but it didn't make it into beta 21. It will be in beta 22.
The workaround is to change TMP and TEMP system variables for your user account so it not uses non-english names. Or you can use the old reporter, which we have kept in the installation path for now.

 

I am glad that my bug reports have been useful

 

Yes, but as you can see there is too many bugs on other parts of sofa

 

Thank you.

There is another problem, which was also on the legacy lightmapping. Light breaks through the models. Because of this, always had to make a special external model, which does not transmit light. But it is a "ugly hack". Maybe something can be done about it?

 

I have all the problems as well @homerender mentions No need to submit bug again. It is impossible to go on our projects with these bugs. I believe these bugs must be on top in TODO list.

 

@SpiriTx guys, I found another bug... It may be necessary to rename the topic in "Bugs in Unity 5"?

Deferred + Linear

 

Off topic, these sofas look FREAKING PHENOMENAL!!! And I am glad I am seeing these posts because it is important to see the issues before we really start using lightmapping. Maybe there can be a way to allow up to select which UVs we can use for Lightmapping... have you thought about changing where your seams go, maybe in a spot where no one can see them? Also when you model a room, you can try adding a small bevel on the 90 degree corners to avoid light leaking... this also happens when in offline renders too.

 

@Neptune_Imaging Thanks) This is updating 2.0 for my old asset https://www.assetstore.unity3d.com/en/#!/content/7054

Nope, Unity can't do it.

 

I mean, you should make Lightmapping UV manually...

 

Unwrap on this model is good on UV1, i make by myself.

 

Very nice and clean. Still weird that you are getting artefacts.

 

I would say that there is nowhere near enough padding between those UV islands. Consider how low res these lightmaps are, each pixel along the island edges is going to hit two totally different parts of the model.

 

Perhaps you're right

 

I too have met this error. It seems you can't choose DX11 as a Defocus Type when in Deferred Linear mode. That used to work perfectly in 4.6 so I think that's a bug.

 

In the previous beta-version seems it worked fine.