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/* Examples of Sprites Multiplexing on an Amstrad Plus */
Sprites Multiplexing is a technic often used on other achines machines with Hardware Sprite Capability.
It was often used on the [[Commodore 64|C64]].
==Limitations of Sprites Multiplexing on Amstrad Plus==
The technic impose some limitations due to the somewhat unachieved design of the Amstrad Plus and the complex specificity of the [[ASIC]] :
* The same Sprite is simply copied/duplicated as it is.
==Possible uses==
This can then be used for games like Shoot'emups... as the sprites don't always need to be well animated (just moved) and as enemies waves are often pre-determined (R-Type is the typical exempleexample).
So it fit well for Vertical Waves of enemies.
==Exemples Examples of Sprites Multiplexing on an Amstrad Plus ==
This Technic wasn't really exploited on the amstrad Plus, mainly because the Amstrad Plus wasn't really exploited.
* Maybe the [[Black Sabbath]] by [[BDC-Iron]] (first harwired sprites multiplexing demo as claimed by its author)*[[ Delirium Tremens]] preview by BDC-Iron (32 Harware sprites per line with actually only 8 sprites slots used) * [[Synergy]] synergy demo.by [[AsT/Impact]] (ndAsT : Yes this demo uses Sprites Multiplexing ! For example, the wobbler only uses 1 sprite line !!!... and have you ever count the balls displayed on the screen ?)*[[XMas 2008 Dentro]] by [[AsT/impact]] (The christmas balls are composed of 4 sprites... copied 4 times on your screen)
* Probably [[It was so nice before the crash of the mir station]]
In games, [[Prehistorik 2]] by [[Titus Software]] uses sprite multiplexing for the (second) big cloud/rocks that appear in the front. Did you notice that there are always 2 identical big clouds/rocks on screen at once..? Each one is drawn using all 16 hardware sprites. ==Video== *Sprite Multiplexing on C64 : http://www.youtube.com/watch?v=oyf2W239eRY*Synergy Demo on Amstrad Plus : http://www.youtube.com/watch?v=YGH5JIPWQ2I ==Other Sources and links == *[[Amstrad CPC plus sprite format]]*[[Programming:CPC Plus Hardware Sprites]] *[http://codebase64.org/doku.php?id=base:sprite_multiplexing Sprite Multiplexing Article at a C64wiki]*[http://lywenn.eu.org/projets/mtpx/mtpx.pdf Sprite Multiplexing project on Nintendo DS]
[[Category:CPC Plus]][[Category:Programming]][[Category:Graphic]][[Category:Stub]]
