Direct Color: Difference between revisions
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=== References === | === References === | ||
# [https://archive.org/details/SNESDevManual/book1/page/n73 Page 2-8-1 of Book I] of the official Super Nintendo development manual | # [https://archive.org/details/SNESDevManual/book1/page/n73 Page 2-8-1 of Book I] of the official Super Nintendo development manual | ||
# [https://archive.org/details/SNESDevManual/book1/page/n211 Appendix 17] lbid | # [https://archive.org/details/SNESDevManual/book1/page/n211 Appendix A-17] lbid | ||
# [https://archive.org/details/SNESDevManual/book1/page/n129 page 2-27-16 of Book I] lbid | # [https://archive.org/details/SNESDevManual/book1/page/n129 page 2-27-16 of Book I] lbid | ||
# [https://archive.org/details/SNESDevManual/book1/page/n199 Appendix A-5] lbid | # [https://archive.org/details/SNESDevManual/book1/page/n199 Appendix A-5] lbid | ||
Revision as of 13:02, 28 December 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. However, palette 00 is a transparent color rather than black, complete black cannot be used. And, it is RGB443, full white cannot be used.
YXPbgrTT (YXPCCCTT) BBGGGRRR (Pixel's value)
The final color values are:
-BBb00GGGg0RRRr0
Palette 0
Palette 1
Palette 2
Palette 3
Palette 4
Palette 5
Palette 6
Palette 7
See Also
References
- Page 2-8-1 of Book I of the official Super Nintendo development manual
- Appendix A-17 lbid
- page 2-27-16 of Book I lbid
- Appendix A-5 lbid