Et ça ne vous viendrait pas à l'idée que ce modèle 3D pourrait avoir été mis là en "remplacement", en attendant qu'un autre modèle, voire les sprites, soient finalisés?

Toi aussi, je t'adore, Adamis.

On a tendance à oublier que les beta et les alpha peuvent avoir l'air hideuses et mal finie (bah oui, elles sont pas finies ! XD)

Nan mais est-ce que vous avez vu ce qu'aurais donné Shenmue sur Saturn,comparé a ce que ça donne sur Dreamcast?
Ben je peux vous dire qu'on a eu de la chance qu'il soit pas sorti sur Saturn.

Hello, I am the 'chris coffin' that worked on sonic xtreme.
When/If anything can be released by me personally depends on number of factors I cannot discuss at this time.
I can try to answer if possible, any questions regarding my involvement in sonic xtreme or any saturn hardware questions related to sonic xtreme.
I have been talking with hxc for awhile now and I am in contact with some of the other devs for sonic xtreme and releases may be done by proxy or from an individual if possible and appropriate.

Please be patient and respectful, I personally have a very busy schedule as do others (still making games for a living) so there is no timeline for responses or disclosure of 'materials'.

I'll try to answer the questions/specualtion in this thread preceeding my post regarding what hxc has found when/if i can smile.gif.
For starters you may want to check out sonic xtreme on wikipedia, as I made some personal annotations regarding the game development history there to clear up some specualtion that my work was based on NiGHTS code for example, which is wasn't. Yuji Naka and I didn't exactly get along through my correspondence with him P.gif

Yes that version had lighting in it, sonic was make entirely from gouraud shaded polygons except for the pupil of his eyes which were a 4bit texture. And yes the lighting looks nights-ish, because I always used a contrasting color backlight for each light colored source (done on the dsp and i think i limited it to 3 max) to help sonic from looking flat.

That 'pudgy looking sonic' in that screenshot at the bottom looks like its from one of the early bonus game builds - notice the lack of lighting which makes him look very flat compared to the other shots.

The models in the sdk actually came from my builds of the sonic game because they demonstartated the rendering trick 'bug' where if you collapse opposite points of a saturn quad you get a triangle with one edge thats collapsed in and smoothly concave in screenspace at the pixel level.

To keep the edges around sonics eyes/stomach smooth at any size onscreen this trick was used. For the eyes the white polygons were rendered first and then special concave quads in blue, collapsed to these special triangles were drawn afterwards to 'trim' the excess white away.
The resulting effect allowed the camera to zoom into sonic's face for cutscenes and still look good.
The back of sonics body used quad polygons warped in a similar fashion to keep him from looking too low poly. Some special sorting tricks had to be worked out to keep sonic looking right at all angles because we were warping the quads to be very non planar.
The polygon sonic in those shots was modeled by an artist/designer originally from sega of japan that worked on a saturn arcade game called dynamite deka (renamed die hard arcade in the us)
Sonic only had aout a dozen bones in his skeleton so the transformation overhead and subsequent rendering (due to being gouraud shaded and not textured) was faster than decompressing one of sonic's 8bit palettized sprite frames from memory.

There were a couple other saturn rendering tricks rolled into xtreme before it was cancelled, such as environment mapping, done by using a paletted texture and hacking some mode bits to force gouraud shading and wrap any object in what appeared to be a 1x32 gradient environment map texture, a couple games like the port of wipeout used this.
Another trick implemented was proper, arbitrarily oriented transparent polygons on vdp1 that could be gouraud shaded and didn't have the doubled up transparent pixel artifacts, so we didn't have to resort to using the dithered 'screen mode' which looked awful in saturn titles.

After extreme I worked on R&D and assisted SoA/SoE/SoJ developer support regarding the saturn hardware so these discoveries were passed on and implemented in some late generation 3rd party titles and 1st party works like burning rangers so the time invested in xtreme did not feel like a total loss.

un collectionneur peu respecteux des fans de Sonic...