Difference between revisions of "Mode 4 of CPCs (two bitplanes emulation)"

From CPCWiki - THE Amstrad CPC encyclopedia!
Jump to: navigation, search
(Created page with "'''Mode 4 screen (two bitplanes emulation)''' is a software technique to emulate two bitplanes on-screen at once. The advantage is that you don't need to take care of the backgr...")
 
m (Ghost'n'Goblins used a 4colour sprite technique, but not mode3)
 
(4 intermediate revisions by one other user not shown)
Line 1: Line 1:
 
'''Mode 4 screen (two bitplanes emulation)'''
 
'''Mode 4 screen (two bitplanes emulation)'''
  
is a software technique to emulate two bitplanes on-screen at once. The advantage is that you don't need to take care of the background while moving sprites around. Moreover, graphics need 50% less memory space.
 
  
Also known as 'Mode 3'
+
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..
  
[[categories: programming]]
+
 
 +
<gallery caption="Related articles in Amstrad Computer User & ACPC">
 +
Image:ChrisWood 4thMode.jpg|By Chris Wood, published on ACU Jan. 1986
 +
Image:A48 024.JPG|Elmar Krieger's article in ACPC n°48, July 93 (page 1)
 +
Image:A48 025.JPG|Elmar Krieger's article in ACPC n°48, July 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]]

Latest revision as of 12:49, 12 August 2012

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. 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: ZTB-Mission Genocide etc..