Difference between revisions of "Talk:Unit"
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if there were determined i would love to know the process of how it was done | if there were determined i would love to know the process of how it was done | ||
(if this is the wrong place to ask this i am sorry and would love to be redirected to the right place) {{unsigned|07:27, 26 February 2024|84.35.81.129}} | (if this is the wrong place to ask this i am sorry and would love to be redirected to the right place) {{unsigned|07:27, 26 February 2024|84.35.81.129}} | ||
== Unit research == | |||
For the purposes of this comment, I will define the following suffixes: | |||
;'''hk''' | |||
: Havok units | |||
;'''wu''' | |||
: World units | |||
Assume that existing unit suffixes (m, in, etc.) are also in play. | |||
As far as I am aware, 1hk = 69.99125wu. I got curious as to why ''that'' is the conversion factor, so I started digging into unit relationships. | |||
Here are my findings based, initially, on random guesses, and then on pulling at the thread I found: | |||
{| class="wikitable" | |||
|+ Unit relationships | |||
|- | |||
! A !! u !! = !! B !! u !! Comment | |||
|- | |||
|  1 || hk || = || 69.99125 || wu | |||
|- | |||
|  0.0142875 || hk || = || 1 || wu || The Havok value is just 1 ÷ 69.99125 | |||
|- | |||
| 64 || m || = || 69.99125 || yd || Hm. Isn't that a neat coincidence? | |||
|- | |||
|  1 || m || = ||  1.09361328125 || yd | |||
|- | |||
|  0.9144 || m || = ||  1 || yd | |||
|- | |||
|  0.9144 || m || = || 36 || in | |||
|- | |||
|  0.0142875 || m || = ||  0.5625 || in | |||
|} | |||
I checked the original article afterward, and this matches the table in the article, which in turn is based on the [[Glossary]]'s entry for [[Glossary#Exterior Cells|Exterior Cells]]. The conversion factor listed there comes from the article's original revision, by a Bethesda employee. Exterior cells are 4096x4096, which (per both the table in the article and the table above) works out to 2304x2304in or 192x192ft. | |||
Let's continue our table, though: | |||
{| class="wikitable" | |||
|+ Unit relationships | |||
|- | |||
! A !! u !! = !! B !! u !! Comment | |||
|- | |||
| 4096 || wu || = ||  32 || vertices || Exterior cells' heightmapped terrain is a 32x32-vertex grid. | |||
|- | |||
|  192 || ft || = ||  32 || vertices | |||
|- | |||
|  128 || wu || = ||   1 || vertex | |||
|- | |||
|    6 || ft || = ||   1 || vertex | |||
|} | |||
My guess is that Bethesda wanted 128wu to equal 6ft. ''That's'' the rationale for Skyrim's world units, and everything else — the strange Havok conversion factor included — fell out from that. | |||
[[User:DavidJCobb|DavidJCobb]] ([[User talk:DavidJCobb|talk]]) 16:51, 23 July 2024 (EDT) | |||
Revision as of 15:51, 23 July 2024
hi am working on a school project and was wondering how these conversions to real world numbers were determined. was this just set as an arbitrary number or were these determined in an interesting way? if it was an arbitrary number do we know why these ratios were chosen from a game design perspective if there were determined i would love to know the process of how it was done (if this is the wrong place to ask this i am sorry and would love to be redirected to the right place) —The preceding unsigned comment was added by 84.35.81.129 (talk • contribs) 07:27, 26 February 2024
Unit research
For the purposes of this comment, I will define the following suffixes:
- hk
- Havok units
- wu
- World units
Assume that existing unit suffixes (m, in, etc.) are also in play.
As far as I am aware, 1hk = 69.99125wu. I got curious as to why that is the conversion factor, so I started digging into unit relationships.
Here are my findings based, initially, on random guesses, and then on pulling at the thread I found:
| A | u | = | B | u | Comment |
|---|---|---|---|---|---|
| 1 | hk | = | 69.99125 | wu | |
| 0.0142875 | hk | = | 1 | wu | The Havok value is just 1 ÷ 69.99125 |
| 64 | m | = | 69.99125 | yd | Hm. Isn't that a neat coincidence? |
| 1 | m | = | 1.09361328125 | yd | |
| 0.9144 | m | = | 1 | yd | |
| 0.9144 | m | = | 36 | in | |
| 0.0142875 | m | = | 0.5625 | in |
I checked the original article afterward, and this matches the table in the article, which in turn is based on the Glossary's entry for Exterior Cells. The conversion factor listed there comes from the article's original revision, by a Bethesda employee. Exterior cells are 4096x4096, which (per both the table in the article and the table above) works out to 2304x2304in or 192x192ft.
Let's continue our table, though:
| A | u | = | B | u | Comment |
|---|---|---|---|---|---|
| 4096 | wu | = | 32 | vertices | Exterior cells' heightmapped terrain is a 32x32-vertex grid. |
| 192 | ft | = | 32 | vertices | |
| 128 | wu | = | 1 | vertex | |
| 6 | ft | = | 1 | vertex |
My guess is that Bethesda wanted 128wu to equal 6ft. That's the rationale for Skyrim's world units, and everything else — the strange Havok conversion factor included — fell out from that.
DavidJCobb (talk) 16:51, 23 July 2024 (EDT)