DAT (Duke Nukem 3D)
From Just Solve the File Format Problem
The DAT format is a palette format used by Build Engine games.
The format contains three chunks:
- A palette of 256 colors, based on the VGA 262,144 color palette. Colors are stored as a tuple of 3 bytes in sequence, comprising the red, blue and green component. Each component's value is in the range of 0-63.
- Shading Lookup Table which is used to reference the colors in the palette at different brightnesses, from full-bright to black.
- Translucent Lookup Table, which given any two colors, provides reference to the closest matching color in the palette representing the blend of those two colors.
