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Algotecher   [2012]

Algotecher Released by :

Release Date :
14 February 2012

Type :
C64 Demo

Sylvia Saint Mania

User rating:********__  8.1/10 (19 votes)   See votestatistics
********__  8/10 (6 votes) - Public votes only.

Credits :
Code .... Algorithm of Algotech, Onslaught, svenonacid
Music .... Drax of Bonzai, Crest, Maniacs of Noise, Vibrants
  Jeff of Bonzai, Camelot, Cosine, Crest, Viruz
Graphics .... Algorithm of Algotech, Onslaught, svenonacid
Design .... Algorithm of Algotech, Onslaught, svenonacid
Idea .... Algorithm of Algotech, Onslaught, svenonacid
Linking .... Algorithm of Algotech, Onslaught, svenonacid
Concept .... Algorithm of Algotech, Onslaught, svenonacid
Loader .... Krill of Plush

SIDs used in this release :
Touching Cloth(/MUSICIANS/J/Jeff/Touching_Cloth.sid)

Download :
http://csdb.dk/getinternalfile.php/102795/Algotecher.D64 (downloads: 1621)

Look for downloads on external sites:

Production Info
Submitted by algorithm on 14 February 2012
Information on the demo parts as follows

Features particle dissolving (Algotech logo) and wobble text along with a 5 screen high bitmap (not fake boobies this time! :-))
Woman (Page 3 - Poppy)

The entire bitmap is in memory and decompressed in realtime via run length decoding. Does not use VSP hence nearly all the processing time is spent on plotting the bitmaps. Features color bitmap fader

Intro loader pic
Utilises custom spatial dithering to increase the appearance of shades (far more superior than the usual floyd steinberg methods)
Color clashes are reduced by utilising sprite underlays (MUCSU mode). Woman - Kristanna Loken

Woman rotator
Video decoding in realtime utilising my face matching vq routine which analyses video and gives more importance to choosing facial features for the codebook. Utilises bit based delta decompression compressing each frame to around 32bytes to 1000 bytes.
Woman (Page 3 - Poppy)

Full screen distorter
Running at 50 frames per second. 320x200 4 color bitmap distorting in x and y. (Woman - Sylvia saint)

logo distorter tile
utilises additional tile based compression (used as a filler while next part is loading)

FLI per line with multicolor sprite underlay - The ultimate non interlaced gfx quality. Utilises Pal blending
(Woman - Sylvia saint)

Loop animation
Tile based VQ decompression compressing each frame to max 240 bytes (usually around 80-100 bytes or less) Used as a filler while
next part is loading

Bitmap rotator in x position with the ability for each scanline to have a different rotate offset.

Multiple Dancer
24 dancers on screen at once each with a different animation frame offset

Color VQ
Realtime decompression in bitmap mode (16 colors) frame rate leaves a lot to be desired. Optimised version will be in next movie demo. This is merely to show the quality that can be achieved in standard multicolor mode. (Woman - Sylvia Saint)

Interlace pic
Interlaced charpic used as a filler while next part is loading (Woman - Sylvia Saint)

Large scroller which bounces across the screen with each pixel line having a different offset

Ok. Ok. I will release the converter soon. An example of the color mixing capabilities in this mode. (Looks awful on emulator without true 50.12 refresh rate, but near photoquality on TV) - (Woman - Sylvia Saint)

The End
Another picture utilising Spatial Dither (In MUCSU mode) (Woman - Sylvia Saint)
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· User Comments (16)
· Production Notes (1)
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CSDb (Commodore 64 Scene Database) is a website which goal is to gather as much information and material about the scene around the commodore 64 computer - the worlds most popular home computer throughout time. Here you can find almost anything which was ever made for the commodore 64, and more is being added every day. As this website is scene related, you can mostly find demos, music and graphics made by the people who made the scene (the sceners), but you can also find a lot of the old classic games here. Try out the search box in the top right corner, or check out the CSDb main page for the latest additions.
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