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Risen from Oblivion [2001] |
AKA :
RFO
Released At :
Mekka & Symposium 2001
Achievements :
WiLD Demo Competition at Mekka & Symposium 2001 : #2
Credits :
SIDs used in this release :
Download :
Look for downloads on external sites:
Pokefinder.org
User Comment
Submitted by DeeKay on 27 November 2023
| Do not forget to play around with the Joy in Port 2 with the Plasma part! ;-) We did prepare a few nice looking presets that you can cycle through!... |
User Comment
Submitted by DeeKay on 10 November 2023
| Added a proper anim screenshot to replace the quick & dirty lame VDC startup picture.. Thx to Jazzcat for Z64K Screenshots and Lemming for a capture! |
User Comment
Submitted by Jazzcat on 10 November 2023
| Updated screenshot with a mixture of VIC and VDC screens. This entry deserved (finally) to have something decent for the screen display. |
User Comment
Submitted by willymanilly on 22 March 2017
| I've lost count now of the number of times I've watched this demo and it still impresses me. It's been a great challenge to find all the secrets of the c128 this demo uses and I think I have finally found and implemented them all into my emulator! There is one minor glitch I need to fix in the Boris Vallejo image in the VIC version but everything else seems to run like a real c128. You can download and see for yourself here ==> http://www.z64k.com :) |
User Comment
Submitted by jailbird on 4 January 2015
Ahh thanks Lemming, I was waiting for this video for 9 years. My life is finally complete!
Too much converted gfx if you ask for my opinion (probably not, but whateva). |
User Comment
Submitted by lemming on 19 February 2011
User Comment
Submitted by Ed on 13 March 2010
| Wow. I got this demo running on my Windows 7 using Vice. Havn't seen it in years since my c128 got destroyed. |
User Comment
Submitted by Graham on 6 December 2006
@Oswald:
To get a correct timing you need to measure the speed of the CPU relative to the speed of the VDC. In the beginning the demo measures the CPU cycles wasted for 64 frames. This number is then used to calculate the exact number of cycles per rasterline (i.e. 63.054 cycles per rasterline) and this again is then used to set timers or correct rasterroutine timing. For example, the rasterbars and techtech routine use a 63 cycle routine which on some rasterlines uses 64 cycles based on that 63.0xx clock cycles previously measured. |
User Comment
Submitted by Oswald on 2 December 2006
| the fullscreen intropart works like the display in zx80s :) |
User Comment
Submitted by Oswald on 2 December 2006
| Graham, and how have you got the timing right on the different vdcs? |
User Comment
Submitted by Graham on 2 December 2006
| The new colors work because of the PAL color encoding: The color carrier consists of U (blue-yellow color distance) and V (red-cyan color distance) which are simply added together, so C = U + V. Now, because a decoder needs to seperate U and V again, the inventors of PAL used a simple trick: They inverted the sign of V every 2nd rasterline, so you always have C = U + V followed by C = U - V. This way you can simply take the color carrier of the previous rasterline and add or subtract the current rasterline with it. If you add both carriers you get back U, and if you subtract you get V or -V. Now, if you skip an odd number of rasterlines, you get -V where normally would be +V and you get +V where normally would be -V. -> The red-cyan color distance gets inverted. |
User Comment
Submitted by DeeKay on 25 November 2006
Amidog: Frankly, we don't quite know ourselves! ;-) Crossbow was experimenting with that $d030-bit that almost all of the effects in the demo are based on and he noticed the colors came out different under certain conditions, because that bit forces an early restart of the screen and seriously fucks with the video signal. It does not work on every monitor we've noticed, some (Philips?) show the original colors!
From looking at the colors I would say that the green and the red component of the video signal got switched somehow. It's probably not YUV, but YVU (or GRB instead of RGB!).
Knowing what the colors looked like falsified i drew the gfx in Amicapaint and xbow made me a displayer so i could check what it looked like in false colors! ;-)
If you look closely you can see those colors in another part in the demo: The Border-IFLI-GFX. It's in the line xbow does the $d030-trick, we couldn't get rid of it so xbow managed to blend it in nicely! ;-) He also couldn't get rid of the white "pixel" (?) (that's from the horizontal clamp, the white line at the very left of the screen! adjust your monitor to show the very left and you'll see what i mean!), so he drew the "Boris Vallejo"-Logo and integrated the clamp-pixel into it, so noone would notice! ;-D |
User Comment
Submitted by AmiDog on 21 November 2006
| This demo is simply great! I just wish I could figure out how they got those new colors from the VIC. Anyone care to explain? |
User Comment
Submitted by Style on 7 November 2006
get a c128 and 1084 ya scums!
Excellent demo btw :)
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User Comment
Submitted by jailbird on 7 November 2006
| Better than nothing if you ask me. |
User Comment
Submitted by Krill on 7 November 2006
User Comment
Submitted by jailbird on 6 November 2006
| Just put a camera infront of the screen :D |
User Comment
Submitted by Krill on 6 November 2006
| Question is, which hw to use for capturing it? Real non-standard video signals going on there. :) |
User Comment
Submitted by jailbird on 6 November 2006
| I'd really appreciate a video. |
User Comment
Submitted by Jucke on 6 November 2006
| I am so happy I have a c128 with a c1901 monitor. This demo is simply amazing! And my c128 loves it too. The first time i ran the demo, it was like my c128 went -"Ahhh.. FINALLY! after all those years. Graham, u da man." (/: |
User Comment
Submitted by Necronomfive on 22 August 2006
| Excellent demo! The screenshot really sucks, and does this masterpiece aboslutely no justice. Both VDC and VIC parts are very colourful and great to watch. It took me a little while to figure out how they managed to get 13 new colours out of the VIC without mixing... |
User Comment
Submitted by Clarence on 17 August 2006
Jackie, I've built my own rgbi cable just to be able to watch this demo (the VDC side) on real hw too. :)
I agree the screenshot is very unfortunate for such a colorful demo. |
User Comment
Submitted by JackAsser on 17 August 2006
| Just watched the VDC experience for the first time on real HW (MY HW!!) today. Super nice! Me like! Thumbs up Graham. |
User Comment
Submitted by Jak T Rip on 17 August 2006
| This is one of the best and most colourful demos ever - how come it has such an ugly picture here - non 128 ppl will think the whole demos looks like usual 80column mode demos :( |
User Comment
Submitted by CyberBrain on 26 March 2003
Finally a (real) demo for the C128, and it sure kicks ass! It's cool to finally be able to take a peek at what the C128 can do. Just a shame the C128 needs a special monitor to show VDC stuff.. :/
Would be cool to see some more C128 demos! Dunno why da fuk someone would vote 2 for this demo |
User Comment
Submitted by Tfardy on 1 March 2003
| A cool one. Too bad that it`s by far the only demo form my beloved c128 :-( It utilizes the VDC chip, and has GFX in 640x200 - so it kicks ass! These guys should make at least one more c128 demo :-) |
User Comment
Submitted by Ninja on 12 December 2002
| Really strong and impressive! See what happens if you give Crossbow one new VIC-bit to play with. Graham's VDC-stuff is also a milestone. |
User Comment
Submitted by Dwangi on 10 December 2002
| dunno havent seen it, some one should do a handcam version of this :) |
User Comment
Submitted by ThunderBlade on 29 April 2002
Of course everybody's taste is different, but there are also facts. And it's a fact that Risen from Oblivion is good, that's not a matter of taste. Can't understand how someone can give it a vote of only 2.
Edited 21st of May, 2010:
Hey it seems 8 years later the vote of only 2 points disappeared. Either someone made up his mind, or some user was removed from CSDb. :) |
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8.8/10 (22 votes) 