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Mode 4 of CPCs (two bitplanes emulation)

662 bytes added, 16:49, 12 August 2012
Ghost'n'Goblins used a 4colour sprite technique, but not mode3
'''Mode 4 screen (two bitplanes emulation)'''
is a software technique to emulate two bitplanes on-screen at once. The main advantage is that you don't need to take care of the background while moving sprites around. Moreover, graphics need 50% less memory space.
is a software technique to emulate two bitplanes on-screen at once. The main advantage is that you don't need to take care of the background while moving sprites around. Moreover, graphics need 50% less memory space. On the other hand, main disadvantage is that you can use half of available colours for each bitplane. Also known as 'Mode 3'.
Used in games like: [[Mission_Genocide|ZTB-Mission Genocide]] etc..
Used <gallery caption="Related articles in games likeAmstrad Computer User & ACPC">Image: GhostChrisWood 4thMode.jpg|By Chris Wood, published on ACU Jan. 1986Image:A48 024.JPG|Elmar Krieger'ns article in ACPC n°48, July 93 (page 1)Image:A48 025.JPG|Elmar Krieger'Goblinss article in ACPC n°48, ZTB-Mission Genocide etcJuly 93 (page 2)Image:A48 026.JPG|Elmar Krieger's demo listing in ACPC n°48, July 93 (page 3)Image:A48 027.JPG|Elmar Krieger's demo listing in ACPC n°48, July 93 (page 4)</gallery>
* [[media:RSX sprites toolkit (with gng demo).dsk|DSK with the ACPC listing]] RUN"DEMO" to watch..
[[category: programming]]
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