Blendtable (DEF): Difference between revisions

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'''raw''' { [...] }
'''raw''' { [...] }


Description.
DESCRIPTION


:: '''file''' <filename>
:: '''file''' <filename>


:: Description.
:: DESCRIPTION


:: '''offset''' <value>
:: '''offset''' <value>


:: Description.
:: DESCRIPTION


'''glblend''' { [...] }
'''glblend''' { [...] }


Description.
DESCRIPTION


:: '''forward''' { [...] }<br />'''reverse''' { [...] }<br />'''both''' { [...] }
:: '''forward''' { [...] }<br />'''reverse''' { [...] }<br />'''both''' { [...] }


:: Description.
:: DESCRIPTION


:::: {| cellpadding="0" cellspacing="0" border="0"
:::: {| cellpadding="0" cellspacing="0" border="0"
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|}
|}


:::: Description.
:::: DESCRIPTION


:::: See [[#Factors|below]].
:::: See [[#Factors|below]].
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:::: '''alpha''' <value>
:::: '''alpha''' <value>


:::: Description.
:::: DESCRIPTION


'''copy''' <>
'''copy''' <>


Description.
DESCRIPTION


'''undef''' <>
'''undef''' <>


Description.
DESCRIPTION


== Factors ==
== Factors ==

Revision as of 09:08, 22 February 2020

This page is under construction.
Please help review and edit this page.

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 { [...] }
DESCRIPTION
src <factor>
dst <factor>
(or sfactor / top)
(or dfactor / bottom)
DESCRIPTION
See below.
alpha <value>
DESCRIPTION

copy <>

DESCRIPTION

undef <>

DESCRIPTION

Factors

Chart explaining the combination of blend modes available in OpenGL.
  • 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 } }