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 Forum index » Featured Tools » Voxel Section Editor III
Feature showcase: Topology Analysis & Increase Resolution.
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Banshee
Supreme Banshee


Joined: 15 Aug 2002
Location: Brazil

PostPosted: Fri May 18, 2012 2:06 am    Post subject:   Feature showcase: Topology Analysis & Increase Resolution.
Subject description: Yes, it is possible to get great normals with the new Increase Resolution + Auto Normals.
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I've been adding some features for beta versions of VXLSE III that may aid some of you to obtain excellent normals for your voxel model. Here's a quick demonstration of some of the features. First of all, make sure you have VXLSE III 1.39.140 or a newer version of the program.

Once your voxel is opened and almost finished, go to Tool -> Quality Analysis -> Topology Analysis.





It analyses the face neighbourhood of each voxel to predict which ones will get good normals and which ones will not reflect light to the correct direction.

If your score is low (anything below 75%), leave the topology analysis and go to Section -> Increase Resolution. Then, check the quality of the topology again to check the difference.




The Increase Resolution feature doubles the size of your voxel, but ensures that every voxel will get at least one neighbour face. And it does that keeping the object looking as close as its original shape. That improves the 'behaviour' of the voxels, but it makes the game run a bit slower (the model will be heavier).


Tip of the day: Perfect Normals

Now, test the auto normals after increasing the resolution. Use Cubed Auto-Normals instead of Tangent Plane and keep all other settings untouched. And praise the results. Even your craziest models will look good.



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Banshee
Supreme Banshee


Joined: 15 Aug 2002
Location: Brazil

PostPosted: Fri May 18, 2012 7:58 pm    Post subject: Reply with quote

Did anyone tried it or nobody bothered?

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Starkku
Tiberian Beast


Joined: 28 Dec 2007
Location: Finland

PostPosted: Fri May 18, 2012 8:18 pm    Post subject: Reply with quote

I tried it with voxels from my mod and those just lying around on my HD. Considering it seems to mainly check if voxels have neighbouring voxels (if I am right), filled out (partially or just from the 'edges', so to say) voxel graphics seem to score fairly high, I had hard time finding anything that would score below 90%, and for those which did I was able to guess that it would hand out a lower score before I ran the tool. Oh and I did find atleast one unit voxel in my mod that had perfect 100% (this one) #Tongue.

I think 'Increase resolution' might be useful in certain cases, definitely better than the 'Full resize', which was your only option in the past if you wanted to up-scale your voxel graphics.

I'd say pretty useful tool for identifying certain types of problems with voxel graphics. Altough even with perfect or near-perfect voxel topology & normals you can ruin the whole damn thing with piss poor coloring job.
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Cranium
Defense Minister


Joined: 05 Dec 2009
Location: USA

PostPosted: Fri May 18, 2012 8:33 pm    Post subject: Reply with quote

I'll run a few .vxl's tonight and post my results.

I have to say, this is looking very impressive so far. Very Happy
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Mig Eater
General


Joined: 13 Nov 2003
Location: Eindhoven

PostPosted: Fri May 18, 2012 8:40 pm    Post subject: Reply with quote

Got a rating of 0% on this one o.0
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Banshee
Supreme Banshee


Joined: 15 Aug 2002
Location: Brazil

PostPosted: Fri May 18, 2012 8:42 pm    Post subject: Reply with quote

If your model has a lone voxel (a pixel alone, lost, flying in the middle of nowhere), your score is 0, independently of the rest of the model.

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Cranium
Defense Minister


Joined: 05 Dec 2009
Location: USA

PostPosted: Sat May 19, 2012 12:06 pm    Post subject: Reply with quote

Not bad for something I made 4 yrs ago Razz


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Cranium
Defense Minister


Joined: 05 Dec 2009
Location: USA

PostPosted: Mon May 21, 2012 8:08 pm    Post subject: Reply with quote

O.K. how do I go about fixing these?. I tried like hell for the past 4 hrs trying to get a 100% score and failed. Can you explain a little bit more on how to achieve a 100% score. Attached pic to show what I'm talking about.

and why does the topology tool say there is 29928 vxls and the 3d preview says there is 46410 vxls?


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Banshee
Supreme Banshee


Joined: 15 Aug 2002
Location: Brazil

PostPosted: Mon May 21, 2012 8:17 pm    Post subject: Reply with quote

This score was just a first and quick attempt to rate the quality of the volume shape. Don't take it strictly to heart, because there are some serious mistakes which I'll fix once I manage to tone down my stress.

Anyway, if you use Increase Resolution once, you'll be able to obtain perfect results with Cubed Auto Normals, regardless of not reaching 100% score.

But, if you are curious about the things you've spotlighted in your picture, here we go:

1) Manifold Voxels, 2 Possible Normals: These are voxels that have at least one face neighbour in two axis and no face neighbours in the third axis.

2) Manifold Voxels, Ambiguous Normals: These are voxels that have at least one face neighbour in one axis and no face neighbours in the second and third axis.

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Cranium
Defense Minister


Joined: 05 Dec 2009
Location: USA

PostPosted: Mon May 21, 2012 8:29 pm    Post subject: Reply with quote

So where is the increase resolution thingy? Nevermind I got it. And thanks for clarifying the other things.
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Graion Dilach
Defense Minister


Joined: 22 Nov 2010
Location: Iszkaszentgyörgy, Hungary

PostPosted: Sun May 27, 2012 11:15 am    Post subject: Reply with quote

Sorry for joining relatively late to the party, but I only had opportunity to try out this thing today.

First, Increase Resolution is awesome. It has a tiny issue with aliasing remap red with using brick, I noticed, but it still beats Full Resize hands down.

And yeah, Cubed also works nicely there... all in all, you did an amazing job there.
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EVA-251
General


Joined: 20 Feb 2005
Location: Somewhere in Michigan, I suppose.

PostPosted: Thu May 31, 2012 3:45 pm    Post subject: Reply with quote

Could Increase Resolution be extended? I think this feature could be golden if it allowed a range of resize options: 25%, 33%, 50%, 100%, 200% and also had a few options regarding the voxel's colors: no blur, blur.

I have a number of small voxels that could use this feature but at 2x become far too big, and I'm not too sold on voxel-bounds resizing.
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ORA/YR modder/artist, DOOM mapper, aka evanb90
Project Lead Developer, New-Star Strike (2014-), RA Tweaked (2015-)
Former Project Lead Developer Star Strike (2005-2012), Z-Mod (2006-2007), RA1.5 (2008-2013), The Cold War (2006-2007)

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Banshee
Supreme Banshee


Joined: 15 Aug 2002
Location: Brazil

PostPosted: Thu May 31, 2012 8:09 pm    Post subject: Reply with quote

It's complicated to extend it to other sizes, because it is the nature of the algoritm that it uses is to double the size of the model. Maybe, I could let it resize down the voxel after it doubles it, but all its abilities to fix the topology of the model would be gone. And, changing the bounds would provide a much better result than resizing it down, even if it would be a bit heavier in game.

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EVA-251
General


Joined: 20 Feb 2005
Location: Somewhere in Michigan, I suppose.

PostPosted: Fri Jun 01, 2012 6:24 am    Post subject: Reply with quote

I don't want resizing downwards, I just want other upsizing options. 25% bigger, 33% bigger, 50% bigger. Double is nice but leaves way too much to work with.
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ORA/YR modder/artist, DOOM mapper, aka evanb90
Project Lead Developer, New-Star Strike (2014-), RA Tweaked (2015-)
Former Project Lead Developer Star Strike (2005-2012), Z-Mod (2006-2007), RA1.5 (2008-2013), The Cold War (2006-2007)

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Banshee
Supreme Banshee


Joined: 15 Aug 2002
Location: Brazil

PostPosted: Fri Jun 01, 2012 9:06 am    Post subject: Reply with quote

So, if you double it and then resize down, you'd get the effects of increasing resolution in 25%, 33%, etc bigger than the current size (before doubling it).

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