Old Atari ST code (1989-1994)

May 31st, 2019

Somebody on Facebook suggested uploading this to GitHub so, there you go.

https://github.com/Pierre-Terdiman/Atari_ST

I wrote some more recent ST code in 2017, I’ll upload that later.

Atari ST graphics - Peter Elson / Chris Moore

March 8th, 2019

Some of my oldest graphics on the ST were copies of Peter Elson & Chris Moore’s art in the “Parallel Lines” artbook (”Navires de l’infini” in French).

This one was called “Hot Sleep” from Chris Moore:

My copy was one of the first drawing I did on the ST, so it was a bit poor:

I used it in my very first demo (here).

This one was from the same artbook (I got that picture from the internet, sorry for the poor quality):

I already showed the right side in a previous blog post, it looked like this:

This is again one of my oldest attempts at drawing anything on the ST, so my technique wasn’t great there. In fact the left side was so lame I never showed it to anybody anywhere, but here it is:

Atari ST graphics - Dragonball Z

March 8th, 2019

I did a lot of Dragonball Z copies but good luck trying to find the source material in 2019. How many million hits do you get if you Google “Dragonball Z” these days eh?

Well.

My Google-fu seems to work because I did manage to find the source of this picture, by Googling “dragonball z yellow orange red group picture” (!). The image quality isn’t great though, if you know where to find a better version for this image, tell me:

UPDATE: here’s a higher-quality version:

In any case here is my (fullscreen) conversion on the ST, used in Japtro:

As a bonus, I also found some work-in-progress versions that show a few intermediary steps:

Atari ST graphics - Madoka

March 8th, 2019

Madoka was a character from Kimagure Orange Road. I drew her a lot.

This original was from an artbook by Akemi Takada:

The copy I made was found in Choice of Gods, and I made her blink from time to time:

This other original was from the same artbook I think:

And the copy was included in our Rising Force demo:

Finally this one was the cover of Animeland issue 7 (a magazine dedicated to japanimation):

My copy was included in an obscure (and rather lame) intro/demo called Dreamways:

IIRC there was another ST graphist who copied the same image and then claimed I “ripped” his picture… Which was very strange considering none of us were the original authors. We both liked the same stuff and copied the same source.

Atari ST graphics - Rodney Matthews

March 8th, 2019

This second example is called Witch World, from Rodney Matthews. I had a couple of Rodney Matthews artbooks and I copied a lot from them (fonts, logos, etc).

Here’s the original:

And here’s the copy, found in the Choice of Gods intro:

Like many of my Atari ST pictures this was unfinished. I wanted to do more for the sky but never did…

Speaking of unfinished pictures, here is another Matthews-copy that I also didn’t finish:

Since it was never finished, it has never been used in a demo.

Atari ST graphics - Cat’s Eye

March 8th, 2019

A lot of the ST graphics I did were just copies of existing art (because I’m a coder, not an artist). It could be interesting to show the source and the copies side-by-side so I’m going to start a serie of posts about this.

The first example is from Cat’s Eye. The original was a poster in a City Hunter artbook:

The copies are displayed one by one in the Japtro intro. I am not sure why I separated them all, it could have been more interesting to put them all in one picture, but maybe I ran out of colors (the ST has a 16-colors palette by default). One can change the palette each line but maybe that’s not enough here. In any case here’s Ai (Alex in the French version):

Here’s Hitomi / Tam (actually I think I did have multiple palettes just for this one already):

And here’s Rui / Cylia (you can tell I got tired of this project because the mouth and the legs are not finished, but it was only displayed for a few seconds in Japtro so you barely notice):

These are some of the largest pictures I drew on the ST.

My old Atari ST pictures

March 8th, 2019

A long time ago I was drawing pictures on Amstrad CPC and Atari ST. I vaguely wanted to create adventure games. I recently found a bunch of these old pictures on backup CDs. Here’s a selection (click on the picture to enlarge it).

Old NovodeX Monster Truck video

January 17th, 2019

I used the new reduced coords articulations for a vehicle in my recent Youtube video but we already had a multibody vehicle using Featherstone articulations back in 2002.

https://www.youtube.com/watch?v=QJVra8LGDeE

PhysX tip: torsional friction

January 17th, 2019

PhysX tip: in 4.0 there is support for torsional friction, to help robots grasp objects. See PxShape::setTorsionalPatchRadius() and PxShape::setMinTorsionalPatchRadius().

PhysX tip: PxConstraintFlag::eENABLE_EXTENDED_LIMITS

January 17th, 2019

PhysX tip: in 4.0 some joints support a higher limit range than before. For example revolute joints could previously only support a PI*2 range. But it’s been extended. See PxConstraintFlag::eENABLE_EXTENDED_LIMITS. Thank you quaternion double-cover :)

 

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