Blendtable (DEF)
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blendtable <blendtable> { [...] }
Loads a blend table from a raw image file.
The image file MUST contain a 256 color table of its own. Each pixel will have their matching color in the table converted in the blend table.
A single image file may contain multiple base palettes, and offset can used to locate it.
The first ID is reserved to the 33% transparency.
See also numalphatables.
Tokens
raw { [...] }
DESCRIPTION
- file <filename>
- DESCRIPTION
- offset <value>
- DESCRIPTION
glblend { [...] }
DESCRIPTION
- forward { [...] }
- reverse { [...] }
- both { [...] }
- forward { [...] }
- DESCRIPTION
- src <factor> (or sfactor / top)
- dst <factor> (or dfactor / bottom)
- src <factor> (or sfactor / top)
- DESCRIPTION
- See below.
- alpha <value>
- DESCRIPTION
copy <blendtable>
DESCRIPTION
undef
DESCRIPTION
Factors
- ZERO
- ONE
- SRC_COLOR
- ONE_MINUS_SRC_COLOR
- SRC_ALPHA
- ONE_MINUS_SRC_ALPHA
- DST_ALPHA
- ONE_MINUS_DST_ALPHA
- DST_COLOR
- ONE_MINUS_DST_COLOR
Examples
The following PNG image contains the blend table in Duke Nukem 3D v1.5:
This example will load 3 blend tables in the same file:
blendtable 0 { raw { file "blend.raw" } }
blendtable 1 { raw { file "blend.raw" offset 65536 } }
blendtable 2 { raw { file "blend.raw" offset 131072 } }