What causes the following error,
Zero UV area or surface area on mesh.
And how can this be corrected?
What causes the following error,
Zero UV area or surface area on mesh.
And how can this be corrected?
Bumping this since someone else might find it.
I believe this can be caused by your mesh having too little surface area to occupy at least a single whole texel in the lightmap (itās not really zero at all, but close), i.e. your mesh needs to be larger. The warning seems to always be safely ignorable, but you should check if the lighting on the mesh looks ok. For unknown reasons, neither increasing lightmap resolution nor scale in lightmap for the affected object can counter the issue. I just protruded the mesh that caused the problem for me a bit into the ground (since in my case, it was part of a wall). This fixed the warning and the lighting is in fact more correct looking than before. We all wish for the lightmapper to be improved. We really do. Until then, hack away!
I am getting this error too, never seemed to have it before.
Good olā Unity Community!
He asked this simple question in 2015. It is now April 2018, (when I have come to seek the same answer)
I bet if I came back here in 2021, there WILL STILL BE NO ANSWER!
I bet the guy who asked, found a solution, and never came back. It all begins to seem so ugly and pointless.
Tech Forums donāt āWORKā like they used to, for people are no longer the ākindā of creatures for which public forums WERE relevant.
I did forums like these, 35+ years ago, before the internet, using dial-up modems to chat etc on BBSās - For Decades then, and for the first 15-20 years of the internet, People shared information selflessly but fruitfully because they improved together. It was Great! Amazing. We literally invented CGI together and eventually I got to work on TV, in Video Games and Animate for films like āLIFE OF PIā
But, I havenāt seen anything like that for years nowā¦ People are so arrogant and self-involved (We would have NEVER thought to take a picture OF OURSELVES, or our LUNCH for instance, WHAT AN ODD, FREAKISH THING TO DO!)
A new generation is at the keyboard. A generation that is less decent, less civil, less emotionally intelligent and less HUMAN. Less in every conceivable way, than those who came before. (as detailed and chronicled in the book:
āTHE DUMBEST GENERATIONā (or: āDonāt Trust Anyone Under 30ā)
āHow the Digital Age Stupefies Young Americans and Jeopardizes all our future!ā by MARC BAUERLEIN
This is all an undeniable fact that is perfectly reflected in the THOUSANDS of unanswered questions here.
Questions didnāt go unanswered on Tech forums in the before time.
I miss the last good days. When the world could still have gone either way. There was still hope. āWeā could have gotten better. We as individuals did. But the ones who had kids did a terrible job and now there is no hope.
Except one: The subtle sustainable perfection of the plan offered up by the Georgia Guidestones.
Meaning like with an overgrown forest, a Massive Purge of Humanity is the only thing that can SAVE HUMANITY (oh, and, incidentally, save the planet and it 10 million other speciesā¦)
No one over 60 is needed. No one under 35 is needed (or desired by the REAL elitesā¦) THAT LEAVES just about 100 million (in America).
DONāT GET MAD AT ME ITāS NOT MY PLAN, SET IN STONE,ā¦
Cāmon 2022!
I do not really get your problemā¦ The original question was very short and not really complete so not really inviting for someone else to take some time to try to figure what the original problem was.
If the the this question was posted on the unity answer site , it would probably have been discarded for not having enough detail.
I think Zyl did give a nice explanation of the problem and how to solve it.
I do not thinks tech forums are dead , just that the quality of post are getting lower because of the mass of uninformed posters.
Might be a good idea to transfer the Diskussion about this problematic to the General Discusion forum
https://forum.unity.com/forums/general-discussion.14/
then why arenāt you trying to solve this problem?
I found switching from enlighten to progressive lighting fixed this problem, at least for me. To do this go into the lighting tab (if you donāt have one go window > lighting). Look down the lighting options until you find the light mapping settings, in which should be lightmapper. If enlighten is selected switch it to progressive. I hope this helps!
Hello everyone,
I know this is very old, but still Iām having this issue today. On my side, switching to Progressive ākind ofā fixed it, because it was able to bake, but there were many undesired artifacts (undesired black shadows where there shouldnāt be).
However, after experimenting, I finally find what was causing the problem:
Simply switch to a standard non-two-sided shader for all materials in your scene before baking, then switch again to two-sided after the bake.
This might help someone else having this problem, not sure it will be the cause of all cases, of course
Cheers,
Charles
Looks like thereās hope after all!
I know this is an old issue, I just found the cause for my meshes.
I needed to check āOptimize Realtime UVsā on the Mesh Renderer. That fixed it for me. Hopefully that fixes it for some others.
āI bet if I came back here in 2021, there WILL STILL BE NO ANSWER!ā
Asking this in 2023 :))
So is there a fix for it? Optimize Mesh doesnāt seem to work
Same problem hereā¦