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Normal Map Filter Plugin

 

Copy the file NormalMapFilter.8bf to the directory  C:\Program Files\Adobe\Photoshop 6.0\Plug-Ins\Filters

To run the filter, select Filter->nvTools->NormalMapFilter

 

This is the dialog to create normal maps from height information.  The height can come from the alpha or color channels.

The normals are created by using adjacent texels.  You can specify how many in the "Height Generation" area.

Scale - Specifies how much to scale the height values

MinZ - Forces the "up" direction to be a minimum value

3D Preview - 3D rendered version using the normal map

Du/Dv -  Use this to create EMBM maps

Alternate conversions

    Biased RGB subtracts average color of image from each texel

    Red - Use the red channel as height 

    Green - Use the green channel as height 

    Blue - Use the blue channel as height 

    Max - Use the maximum value from the R,G and B channel

    Color space - Height = 1.0 - [(1.0 - r) * (1.0 - g) * (1.0 - b)]

Alpha Field - Specifies what is placed in the alpha channel after normal map generation

Select 'Using Multiple Layers' if you are are using Layers and cannot get the alpha channel to work

 

This is displayed if you have only three channel selected.  The filter can only access what is currently selected

Under Window->Show Channels select the alpha channel if you want to create normal maps from the alpha field.

 

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