- This topic has 5 replies, 2 voices, and was last updated 1 year, 5 months ago by
.
-
Posts
-
The actual palette for use with Atari bitmaps result too dark for some graphics. It’s possible define other palette colors for 16c bitmaps and gimp Atari palette? and if it’s possible , how to edit?
The 16 colors are obtained by mixing 4 basic colors (black, red, green, blue).
If you want to make these colors brighter, check the function ShowBitmap().
It calls a sub-function “SetPalette(bmpPalette);”The 4 values of bmpPalette correspond to the first 4 bytes of the image file loaded in LoadBitmap().
You can either hack ShowBitmap to edit the values in the bmpPalette array, of modify the python conversion script to write different values for these 4 bytes.(see: https://github.com/8bit-Dude/8bit-Unity/blob/main/docs/Palettes/ATARI-Sprites.png)
It will be basically the average of both colors… To simulate, you can take the RGB values of the 2 colors in the Atari palette I referenced above, then average them. Doing this for each combination, you can rebuild a new palette in GIMP…
(You can also easily display the new palette by running the demo disk, then use the color pick tool in gimp to retrieve the RGB value of each color)
- You must be logged in to reply to this topic.