Direct Color: Difference between revisions

Revision as of 11:09, 6 August 2023

Direct Color is a display technique that does not use CGRAM. Instead, the color value comes directly from VRAM. Direct color is available only on BG1, in the following background modes:

Direct Select is the name of the bit that turns direct color on or off. ^[3] It lives at bit 0 of CGSWSEL (2130h).

Colors

This mode gets RGB values from the palette and color number. One tile can use 256 colors, and Layer 1 can use 2041 colors. The color value comes from 3 bits R, 3 bits G, 2 bits B from the pixel value, plus 1 bit from the palette value.

The final color values are:

-BBb00GGGg0RRRr0

References

Page 2-8-1 of Book I of the official Super Nintendo development manual
Appendix 17 lbid
page 2-26-16 of Book I lbid
Appendix A-5 lbid

@@ Line 6: / Line 6: @@
 '''Direct Select''' is the name of the bit that turns direct color on or off. <sup>[3]</sup>  It lives at bit 0 of CGSWSEL (2130h).
+=== Colors ===
+This mode gets RGB values from the palette and color number. One tile can use 256 colors, and Layer 1 can use 2041 colors. The color value comes from 3 bits R, 3 bits G, 2 bits B from the pixel value, plus 1 bit from the palette value.
+The final color values are:
+ -BBb00GGGg0RRRr0
 === See Also ===