MDEM's First
Posted: Fri Jun 10, 2011 12:35 am
Noticed this on youtube, wonder why it is not mentioned here - a recent demo for SMD, MDEM's First.
Sega Megadrive/Genesis development
https://gendev.spritesmind.net/forum/
https://gendev.spritesmind.net/forum/viewtopic.php?f=8&t=936
Which 3D part are we talking about here? The stars or the line segments? My MD2 would flip out half the time on the line segments (otherwise, work perfectly... I don't know why).TmEE co.(TM) wrote:This demo also is doing something funny, and it causes it on fail on certain MD2 models. My V0 MD2 with 315-5476 goes crazy on the 3D part, while my Nomad does not. I have not tried with other MD2s. Other people report the problem too.
You're wrong, kind sirChilly Willy wrote:Yeah, I saw that posted elsewhere, like SEGA-16 and SonicRetro. I guess Oerg866 doesn't have an account here.
So am I... hiI think Jorge is one of our members ....
we do, and yes, this forum rocksand since SpritesMind is on the greeting part (thanks!) , I assume they know this forum
It was pretty fun, especially the week before the event. nonstop skype, working 18 hours a day on it, talking to jorge all the time via skype,yeah it was good fun. I think my programming knowledge has expanded by a factor of over nine thousand since we started to do the demo in december 2010Hey guys! tell us how fun it was to made this demo ! Smile
ThanksHey guys! tell us how fun it was to made this demo !
Another proof that the MD2 sucks :p Jorge's MD3 doesn't have this problem neither do all model 1 models.This demo also is doing something funny, and it causes it on fail on certain MD2 models. My V0 MD2 with 315-5476 goes crazy on the 3D part, while my Nomad does not. I have not tried with other MD2s. Other people report the problem too.
LoadTiles was deleted as was LoadPalette. I did use your DMA stuffs later except PutTiles (which is the only thing carried from TMEGALIB and is for generating pattern data on the fly).This demo was built from my older program I made in 2006, with tons of extra stuff of course. Theres also some code from Tiido's lib that Oerg carried over, like LoadTiles/Palette/DisplayTiles, even though I had better things for that like DMA queues, etc
I guess I am!Oerg866 wrote:You're wrong, kind sirChilly Willy wrote:Yeah, I saw that posted elsewhere, like SEGA-16 and SonicRetro. I guess Oerg866 doesn't have an account here.
Very weird... I wonder what the problem there is. I've got a model 2, a CDX, and a Nomad.It was pretty fun, especially the week before the event. nonstop skype, working 18 hours a day on it, talking to jorge all the time via skype,yeah it was good fun. I think my programming knowledge has expanded by a factor of over nine thousand since we started to do the demo in december 2010
Also we did the demo using MoonEdit and a custom data file upload/download/sync system I programmed :p
Another proof that the MD2 sucks :p Jorge's MD3 doesn't have this problem neither do all model 1 models.This demo also is doing something funny, and it causes it on fail on certain MD2 models. My V0 MD2 with 315-5476 goes crazy on the 3D part, while my Nomad does not. I have not tried with other MD2s. Other people report the problem too.
This thing was discussed here, it has to do with the way horizontal scrolling is handled when 2-cell vertical scrolling is used (41 patterns are indeed rendered, with the first and last ones being only partially visible, but there are only 40 entries in VSRAM). Interesting to know that this was modified in the Genesis 3 ASIC, there might be other differences in the later VDP implementations, who knows...Jorge Nuno wrote: My GenIII doesnt suffer from the 2-Cell VScrolling bug that can be seen in straight line zone. I had to mask it with sprites on the translucent MDEM logo because it looked really nasty:
http://www.youtube.com/watch?v=UsW8i7zsY8w