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Horizontal Pseudo 512 Mode: Difference between revisions

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'''Pseudo HiRes Mode''' is a transparency technique that displays all of the [[Main Screen]] and [[Sub Screen]] at the same time without the use of color math.  It is enabled by setting bit 3 of SETINI (2133h).  All columns of dots with an odd horizontal position are drawn by sampling a subscreen pixel, and all columns of dots with an even horizontal position are drawn by sampling a main screen pixel.  A CRT televsion blends the adjacent dots together, creating the transparency effect.
'''Pseudo HiRes Mode''' is a transparency technique that displays the [[Main Screen]] and [[Sub Screen]] at the same time without the use of color math.  It is enabled by setting bit 3 of SETINI (2133h).  Columns of dots with an odd horizontal position are drawn by sampling a subscreen pixel, and columns of dots with an even horizontal position are drawn by sampling a main screen pixel.  A CRT televsion blends the adjacent dots together, creating the transparency effect.


=== Examples ===
=== Examples ===

Revision as of 23:50, 6 June 2023

Pseudo HiRes Mode is a transparency technique that displays the Main Screen and Sub Screen at the same time without the use of color math. It is enabled by setting bit 3 of SETINI (2133h). Columns of dots with an odd horizontal position are drawn by sampling a subscreen pixel, and columns of dots with an even horizontal position are drawn by sampling a main screen pixel. A CRT televsion blends the adjacent dots together, creating the transparency effect.

Examples

  • the HUD in Jurassic Park
  • the trees in Kirby's Dreamland 3

See Also

References