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Horizontal Pseudo 512 Mode: Difference between revisions
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'''Pseudo | '''Pseudo Hi-Res 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 00:48, 7 June 2023
Pseudo Hi-Res 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