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Jul - The Cutting Room Floor - Mario Kart 64's unused track scaling function New poll - New thread - New reply
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Rena
I had one (1) message in Discord deleted and proceeded to make a huge, huge mess about how it was a violation of free speech and how moderators are supposed to be spam janitors and nobody should have the right to tell me not to talk about school shootings
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Posted on 11-15-10 12:21:06 AM (last edited by Rena at 11-14-10 09:22 PM) Link | Quote
11-14-10 07:21:06 PM
Post #3867


(#2 is probably the only screenshot worth posting because I'm an idiot and left my mouse cursor on the screen hurr)

Right next to the mirror mode flag in memory is an unused vertex Y scale parameter. (Gameshark code 810DC608 ???? default value 3F80) As far as I can tell, this whole memory block is copied from ROM somewhere, and the value never gets changed from 1. It affects hit detection (see if you can get to Royal Raceway's ramp at 5x scale), so it can't just be used for graphic effects. In fact even just scaling to 2x or 0.5x causes some problems (graphics out of place, walls no longer solid, unclimbable hills; Rainbow Road crashes at 2x).

I haven't put this on the wiki because I've been getting "server is taking too long to respond" errors for the past several days. I'm about 90% certain it's unused since I didn't see the game ever modify it and can't imagine what use it would have, but I didn't do an exhaustive search; there could be some reference in the code somewhere.

(Also fun: Scale it to 0x or -1x. )

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Tauwasser
"dumb piece of shit needs to learn some fucking ettiquette" - Anonymous
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Posted on 11-15-10 12:31:21 AM Link | Quote
Nice discovery Does it scale AI way points, too? Or do they drive as if the 1× zoomed map was present?

cYa,

Tauwasser

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Rick
M'Lord, there's a knife in your head!
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Posted on 11-15-10 01:04:15 AM (last edited by Rick at 11-14-10 10:04 PM) Link | Quote
I hope not, it'd be fun to see the CPU wander around aimlessly in confusion. Or repeatedly into walls.

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Joe
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From: Pororoca

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Posted on 11-15-10 01:52:02 AM Link | Quote
Rainbow road at -1x is amazing.

AI waypoints seem to work fine regardless of scale, until they do this. Lakitu is holding all of them hostage.

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Rena
I had one (1) message in Discord deleted and proceeded to make a huge, huge mess about how it was a violation of free speech and how moderators are supposed to be spam janitors and nobody should have the right to tell me not to talk about school shootings
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Since: 07-22-07

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From: RSP Segment 6

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Posted on 11-15-10 02:00:08 AM Link | Quote
11-14-10 09:00:08 PM
Post #3869
It only appears to affect track geometry. Notice the cars on Toad's Turnpike and the chomps in Rainbow Road still following their original paths, the item boxes floating in the air, etc. AI players don't really pay attention to height, so they shouldn't have much trouble, though I wonder how well they handle overlapping sections at 0x...

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Xkeeper

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Posted on 11-15-10 07:15:33 PM Link | Quote
I haven't put this on the wiki because I've been getting "server is taking too long to respond" errors for the past several days.


Do a traceroute, because nobody else is having this issue.

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Jul - The Cutting Room Floor - Mario Kart 64's unused track scaling function New poll - New thread - New reply


Rusted Logic
Acmlmboard - commit 47be4dc [2021-08-23]
©2000-2022 Acmlm, Xkeeper, Kaito Sinclaire, et al.

29 database queries.
Query execution time:  0.086775 seconds
Script execution time:  0.015321 seconds
Total render time:  0.102095 seconds


TidyHTML vomit below
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Info: Document content looks like HTML5
Info: No system identifier in emitted doctype
Tidy found 140 warnings and 0 errors!


The alt attribute should be used to give a short description
of an image; longer descriptions should be given with the
longdesc attribute which takes a URL linked to the description.
These measures are needed for people using non-graphical browsers.

For further advice on how to make your pages accessible
see http://www.w3.org/WAI/GL.
You are recommended to use CSS to specify the font and
properties such as its size and color. This will reduce
the size of HTML files and make them easier to maintain
compared with using <FONT> elements.

You are recommended to use CSS to control line wrapping.
Use "white-space: nowrap" to inhibit wrapping in place
of inserting <NOBR>...</NOBR> into the markup.

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