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RAW textures will be loaded in place of a classic texture if they have the same name (eg. <code>hello.BM</code>, <code>hello.RAW</code>). They ''must'' be exactly double the dimensions of the [https://df-21.net/documentation/DFSPECS/s_bm.htm BM] they are replacing. For example, a 64x128 BM must be replaced by a 128x256 RAW. | RAW textures will be loaded in place of a classic texture if they have the same name (eg. <code>hello.BM</code>, <code>hello.RAW</code>). They ''must'' be exactly double the dimensions of the [https://df-21.net/documentation/DFSPECS/s_bm.htm BM] they are replacing. For example, a 64x128 BM must be replaced by a 128x256 RAW. | ||
== File format == | |||
RAW files are headerless and uncompressed. Image width and height are obtained from the corresponding BM. | RAW files are headerless and uncompressed. Image width and height are obtained from the corresponding BM. | ||
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<pre> | <pre> | ||
Pixel { | Pixel | ||
Red | { | ||
Blue | Red byte | ||
Green | Blue byte | ||
Alpha | Green byte | ||
Alpha byte | |||
} | } | ||
</pre> | </pre> | ||
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|} | |} | ||
== Multiple images == | |||
Where a RAW is replacing a multi BM (most commonly, a switch), each subsequent image simply follows immediately after the previous one. | Where a RAW is replacing a multi BM (most commonly, a switch), each subsequent image simply follows immediately after the previous one. | ||
[[Category: Remaster Specs]] | |||
Latest revision as of 03:38, 12 March 2024
RAW is an image format introduced with the Dark Forces Remaster. It is the format for high resolution textures. RAW textures are true colour; they do not reference the original palettes.
RAW textures will be loaded in place of a classic texture if they have the same name (eg. hello.BM, hello.RAW). They must be exactly double the dimensions of the BM they are replacing. For example, a 64x128 BM must be replaced by a 128x256 RAW.
File format
RAW files are headerless and uncompressed. Image width and height are obtained from the corresponding BM.
A RAW contains nothing more than an array of pixels. The number of pixels will be BM width x BM height x 4. Pixels are arranged by rows (note this is different from BMs where pixels are arranged in columns).
Each pixel is a 4 byte struct:
Pixel
{
Red byte
Blue byte
Green byte
Alpha byte
}
Each value can be between 0 and 0xFF.
The way the Alpha channel is handled by the game is as follows:
0 |
The pixel will be transparent on an adjoining-mid texture, otherwise it will be full-bright. |
Any value from 0x1 to 0xFE |
The pixel will be full-bright (fully lit in all light levels and produce bloom) |
0xFF |
An ordinary pixel. |
Multiple images
Where a RAW is replacing a multi BM (most commonly, a switch), each subsequent image simply follows immediately after the previous one.