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BLPaletter No New Posts WC3 Editing Tools

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Average Score - 5 / 5

« Created: July 06, 2019, 05:03:32 PM by moyack »

on: November 24, 2010, 04:32:11 PM
Version: 1.5c
Keywords: BLP, Paletter, compression
Operating System (OS):
  • Windows XP
  • Windows Vista
  • Windows 7
  • Windows 8
  • Windows 10
Tool Category: 2D Art (skinning)
Rating: 5
Warcraft III Tool resource
« Created: July 06, 2019, 05:07:58 PM by moyack »
« Last Edit: July 07, 2019, 07:23:26 AM by moyack »

BLPaletter converts BMP, TGA and JPG images to paletted BLP images.
These often compress better than usual JPG compressed BLPs.
For example it compresses a 256x256 texture to 33kb in a map of mine.
Note that paletted blps work better with MPQ archive compression than ordinary jpg blps, so that you can only accurately compare file size after importing them into a map.
Since version 1.3 it can also create JPG compressed BLPs.
Fixed Mipmapping issues in version 1.4.
Fixed an alpha channel issue in version 1.5b.

Get the latest version (check link above)
The C++ source code is also available here
Botanic made a GUI for it, you can get it here

An older GUI made by Acaykath is also available, but I think it doesn't support the latest features that I've added. It's available here


Code: [Select]
BLPaletter <input.tga|input.bmp|input.jpg> [<output.blp>] [<number of colors / quality>] [-j | -p] [-mipN]
Replace the N of the -mip parameter with a number between 1 and 16.
This will limit the number of generated mipmaps to a max of N.

For icons and interface textures always use -mip1 because they do not use mipmapping . Or -mip2 if you support people with really old computers who have the texture quality setting at low.

For model textures simply leave out the -mip parameter.


Code: [Select]
  BLPaletter D:\icons\BTNSomeIcon.tga -mip1
    -> Will create D:\icons\BTNSomeIcon.blp with 256 colors and 1 mipmap

  BLPaletter D:\icons\BTNBlah.bmp 128
    -> Will create D:\icons\BTNBlah.blp with 128 colors

  BLPaletter D:\icons\a.tga D:\icons\b.blp 64
    -> Will create D:\icons\b.blp with 64 colors

  BLPaletter "C:\Program Files\Something\SomeTexture.tga" Target.blp
    -> Will create Target.blp with 256 colors in the current directory (watch out: you need " when a path contains a space)

  BLPaletter C:\x.bmp C:\y.blp 85 -j
    -> Will create C:\y.blp with JPG compression and a quality of 85%

  BLPaletter ..\Textures\MountainKing.bmp -p -mip8
    -> Will create ..\Textures\MountainKing.blp with 256 colors (paletted) and 8 mipmaps at max


Fixed a bug that corrupted the alpha channel on images smaller than 128 x 128


Now auto-generates mipmaps so it works properly with textures when looking from far away
Added -mipN parameter (replace N with the number of mipmaps you wanna have, eg. -mip1 for icons)
Fixed a visual problem related to wrong mipmap offsets
Cleaned up the source code


It can now read jpg files too.


Added option to use jpg compression (-j vs. -p switch, -p is assumed by default)
With the -j switch on, the number of color parameter controls the quality of the output blp (values between 1 and 99 please)


Removed the 'Press any button to continue' message.


Added optional parameter to specify the number of colors (16 - 256).
Added Floyd-Steinberg-Dithering for much better looking results.

Thanks to TheProphet for a few utility functions, BlackDick and Magos
for their blp format specifications, PipeDream, the IJG for their free
Jpeg Library, Litany for providing test files.
« Last Edit: July 07, 2019, 07:23:26 AM by moyack »


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