Call of Duty 4: transparent Minimap

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This tutorial assumes that you already know how to create, compile & create GSCs,CSVs & FastFiles for your maps

By Tally

How many people have noticed that most of the minimaps in custom maps dont have the transparency that the IW stock one's do?

Ever wondered how IW got theirs to be semi-transparent? Have you ever wanted a semi-transparent minimap for your custom map?

Well, at last, here is the information you need, so that you too, can have a minimap with transparency.

Basically, to get transparency, you have to ignore a couple of pieces of information IW have given on their Wiki:

  • Asset Manager settings

These are the actual settings you need:


The only difference between my settings and those of IW are in the Frame Buffer settings. They tell you to make it 'Replace'; but you actually need to set it to 'Blend'.

Other than that, they are identical to the one shown on the wiki:


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Do not use a 24 bit .TGA file - it does not store Alpha channels very well. The IW Wiki tells you to use 24 bit one, but you either need a 32 bit .TGA files, or better yet, DXT5 DDS files will save everything you need correctly.

When making your Alpha channels, create 2 to do the job properly.

Here is one that OLD_MAN_WITH_GUN did for PowCamp Reloaded:


You will notice there are sharp white lines outlining the buildings, and a blurred background - this was done with 2 alpha channels, the outlines of the buildings in one, the blurred background in another.

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Alpha channels can be merged in Photoshop by these key strokes - [CTRL + Left Mouse Click] on the channel.
You want to merge down, and then simply right click on the next alpha channel down.
You will find that the 2 have become merged into one.

That's it! Have fun with your new minimap