Question: Can positive extends on Z cause corruption?

[Marshmalo]

Hi there, I am wondering, in Wolverabids post regarding model corruption and things that cause a model to become corrupted, he says positive values in minimum extends can cause corruption. Heres link:

http://www.hiveworkshop.com/forums/modeling-animation-276/beware-corrupted-model-files-32891/

However, just looking at some blizzard made wc3 models and they regularly have positive vales in the minimum extends field but only on the Z axis. is the Z axis exempt from this rule?

 

[UgoUgo]

Dodgy extents -- negative maxes and positive mins (beware when editing the Marine and Tauren).

YOu mean this? I cant see any other point that states about extents.

So, I think you misunderstood.
What the sentence meant is, the x,y,z of the minimum extents should not have a higher value than the maximum extents.

For example:
1.

Minimum extent X: -5, Y: -5, Z: -5 Maximum extent X: 5, Y: 5, Z: 5

Doesnt corrupt

2.

Minimum extent X: 5, Y: 5, Z: 5 Maximum extent X: -5, Y: -5, Z: -5

Corrupts

3.

Minimum extent X: 5, Y: 5, Z: 5 Maximum extent X: 10, Y: 10, Z: 10

Doesnt corrupt

4.

Minimum extent X: 10, Y: 10, Z: 10 Maximum extent X: 5, Y: 5, Z: 5

Corrupts

Get what I mean?

I havent tested this, so I might be wrong. But Im pretty sure thats how it works. Its just like making a geometry out of coordinates. Hope it helps.

 

[Marshmalo]

Oh lol yeah clearly I misunderstood, thanks for the detailed answer! +rep

By the way does this extends issue only apply to every geoset individually aswel or just the overall model extends? As visible in magoes when you click model properties.

 

[UgoUgo]

It applies to whole model.

 

[General Frank]

YOu mean this? I cant see any other point that states about extents.

So, I think you misunderstood.
What the sentence meant is, the x,y,z of the minimum extents should not have a higher value than the maximum extents.

For example:
1.

Minimum extent X: -5, Y: -5, Z: -5 Maximum extent X: 5, Y: 5, Z: 5

Doesnt corrupt

2.

Minimum extent X: 5, Y: 5, Z: 5 Maximum extent X: -5, Y: -5, Z: -5

Corrupts

3.

Minimum extent X: 5, Y: 5, Z: 5 Maximum extent X: 10, Y: 10, Z: 10

Doesnt corrupt

4.

Minimum extent X: 10, Y: 10, Z: 10 Maximum extent X: 5, Y: 5, Z: 5

Corrupts

Get what I mean?

I havent tested this, so I might be wrong. But Im pretty sure thats how it works. Its just like making a geometry out of coordinates. Hope it helps.

You are totally correct here.
Basic formula is TotalExtend = (MaxExtend) - (MinExtend)
If TotalExtend is negative the model file becomes corrupted.

You can use Magos' Model Editor to automatically calculate the extends of a model.

 

[Rao Dao Zao]

I have to add the caveat that bad extents do not guarantee that your model will crash. It's something that I noticed happening in some cases when editing Blizz models that had extents like this, so if you've got a crash the extents are a good (and easy) place to start.

 

[General Frank]

I have to add the caveat that bad extents do not guarantee that your model will crash. It's something that I noticed happening in some cases when editing Blizz models that had extents like this, so if you've got a crash the extents are a good (and easy) place to start.

I try to elaborate but I cannot find an example here. Can you give me one, Sir?