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Large Voxel rendering glitches
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G-E
Defense Minister


Joined: 09 Feb 2015

PostPosted: Sat May 21, 2016 7:15 am    Post subject:  Large Voxel rendering glitches
Subject description: (add if you have other examples)
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The 747 voxel is 223 wide by 255 long, and scaled to 90% using voxel bounds to 200x228 or so.

In the yellow circles, you can see the normals abrupt change, when facing away from the sun, they go black quickly.

In the red circles, you see a weird shadow clipping way out to the corner where no pixels are drawn.



planeartifacts.jpg
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planeartifacts.jpg



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Mig Eater
Defense Minister


Joined: 13 Nov 2003
Location: Eindhoven

PostPosted: Sat May 21, 2016 9:25 am    Post subject: Reply with quote  Mark this post and the followings unread

Bad normals are bad normals, doesn't have anything to do with the size of the vxl.

The shadow glitch is very common, the only thing you can do to fix it is make the vxl smaller.

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Lin Kuei Ominae
Seth


Joined: 16 Aug 2006
Location: Germany

PostPosted: Sat May 21, 2016 5:17 pm    Post subject: Reply with quote  Mark this post and the followings unread

Mig Eater wrote:
The shadow glitch is very common, the only thing you can do to fix it is make the vxl smaller.

Do multi sections work?
The plane could be split into 3 much smaller sections: left wing, right wing, fuselage. Then these combined together in the hva again.

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ApolloTD
Commander


Joined: 19 Nov 2003

PostPosted: Sat May 21, 2016 6:37 pm    Post subject: Reply with quote  Mark this post and the followings unread

Lin Kuei Ominae wrote:
Mig Eater wrote:
The shadow glitch is very common, the only thing you can do to fix it is make the vxl smaller.

Do multi sections work?
The plane could be split into 3 much smaller sections: left wing, right wing, fuselage. Then these combined together in the hva again.


No, shadow can only be casted from single section.

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G-E
Defense Minister


Joined: 09 Feb 2015

PostPosted: Sat May 21, 2016 9:36 pm    Post subject: Reply with quote  Mark this post and the followings unread

Lin Kuei Ominae wrote:
The plane could be split into 3 much smaller sections: left wing, right wing, fuselage. Then these combined together in the hva again.

As Apollo says the shadow makes this problematic, but personally I could see in some cases you wouldn't mind. Also aircraft shadows are automatically rendered much smaller than vehicle shadows, which as I showed in a previous shot, doesn't appear to fix this glitch. Oddly or interestingly it appears lighter when the unit is aircrafttype than vehicletype...

The voxel shadow doesn't change when an aircraft rolls or crashes I found, so even in normal conditions it isn't perfect either.



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smallshadow.jpg
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smallshadow.jpg



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Mig Eater
Defense Minister


Joined: 13 Nov 2003
Location: Eindhoven

PostPosted: Sun May 22, 2016 8:57 am    Post subject: Reply with quote  Mark this post and the followings unread

Lin Kuei Ominae wrote:
Do multi sections work?

No, the problem isn't actually with the size of a vxl, it's that the game has a limited render size of 256x148. if anything goes outside this area it doesn't render properly & glitches.



vxlsize2.png
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Shadow glitched & copied onto other side of render area.
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vxlsize2.png



vxlsize.png
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500x500x500 vxl cube made from 4 250x250x250 vxls.
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vxlsize.png



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Lin Kuei Ominae
Seth


Joined: 16 Aug 2006
Location: Germany

PostPosted: Sun May 22, 2016 10:01 pm    Post subject: Reply with quote  Mark this post and the followings unread

i see
Seems comparable with the 160x160 pixel size restriction for turreted SHP units.

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G-E
Defense Minister


Joined: 09 Feb 2015

PostPosted: Sun May 22, 2016 11:36 pm    Post subject: Reply with quote  Mark this post and the followings unread

Therefore the actual voxel bounds don't matter, just the visible dots and shadow location?

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Mig Eater
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Joined: 13 Nov 2003
Location: Eindhoven

PostPosted: Mon May 23, 2016 5:29 am    Post subject: Reply with quote  Mark this post and the followings unread

Yes.

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Allied General
General


Joined: 19 Mar 2004
Location: United Kingdom

PostPosted: Thu May 26, 2016 9:44 pm    Post subject: Reply with quote  Mark this post and the followings unread

Offtopic but MissingNo. confirmed for D-Day? :p

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Kamuix
Rocket Infantry


Joined: 02 Nov 2012
Location: Canada

PostPosted: Fri Sep 30, 2016 4:25 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hey can those plane voxels be downloaded?

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PussyPus
Commander


Joined: 14 Jul 2015
Location: Egypt

PostPosted: Sat Oct 01, 2016 12:13 am    Post subject: Reply with quote  Mark this post and the followings unread

The vxlsize.png image shows the same glitch happened to me after creating a mortar tank voxel with the maximum weight and height.

Body, Barrel And Turret are the same size:
X: 240
Y: 240
Z: 240

I first saw that and then i was like  Laughing  (sorry for the big picture)



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SCRN0000.jpg



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G-E
Defense Minister


Joined: 09 Feb 2015

PostPosted: Sat Oct 01, 2016 2:13 am    Post subject: Reply with quote  Mark this post and the followings unread

Why the hell would you make a voxel that big anyway... my 747 is at the upper limit and I can't see making something bigger for any reason.

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PussyPus
Commander


Joined: 14 Jul 2015
Location: Egypt

PostPosted: Sat Oct 01, 2016 2:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

G-E wrote:
Why the hell would you make a voxel that big anyway... my 747 is at the upper limit and I can't see making something bigger for any reason.


I made that voxel from the first days of 2016, And the version of my VXLSEIII can't reach to over 250/250/250, Once this happen, The program crashes with me.

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Exley
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Joined: 09 May 2011
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PostPosted: Sun Oct 02, 2016 1:49 am    Post subject: Reply with quote  Mark this post and the followings unread

that airplane is 1st and best plane i ever saw that actually looks great in RA2 crappy voxel engine

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