To access your preferences, click the Preferences Tab in the main GUI. From here you can set up the way Lys performs

The Preferences Tab

Axis Swizzle settings

Axis Swizzle: Here you can change the axis in the dropdown to match the Normal/Derivative maps for your engine or application as required, allowing you to save your preference so that it loads by default when Knald starts. By default Knald is set to X+Y+Z+, so if you are using a normal map that differs from this configuration, you will need to change this setting. To change this setting either use the dropdown menu or check the Flip Green check box.

Prefix/Suffix settings

Prefix/Suffix Settings: Enable Prefix: Checking this option will allow you to globally appended a prefix to each maps file name once saved. You can either edit the name in the input field or use the various dropdowns to choose a preset. For example, If your saved normal map is going to be called example.tga and you choose the T_ prefix, the file will then be renamed to T_example.tga

Suffix: Here you can change the suffix that each map will have appended to its file name once saved. You can either edit the name in the input field or use the various dropdowns to choose a preset. For example, If your saved normal map is going to be called example.tga and you choose the _normal suffix, the file will then be renamed to example_normal.tga

3D Preview Settings

3d Preview: Change .obj axis so that Y/Z is up Changes the direction of the up axis in the 3d preview window. Change this to match the up direction of your exported mesh.

Enable gamma correction on Specular Enables/Disables Gamma correction on the Specular in the 3d viewport.

Use per vertex tangent space Toggles between per vertex tangent space and no tangent space derivative when viewing imported meshes. This requires a reboot of Knald to take affect.

Miscellaneous settings

Miscellaneous: Pack Displacement into the Alpha of a Normal Map Checking this option will automatically pack the Height Map/Displacement Map into the Alpha channel of the Normal map when saved.

Pack Displacement into the Alpha of a blank texture Checking this option will automatically pack the Height Map/Displacement Map into the Alpha channel of a blank texture when saved. The textures RGB channels will be filled with white.

Use Alpha by default Checking this option will automatically force Knald to use an Alpha channel by default, when processing Normal/Derivative maps. Using an Alpha channel will cause the masked area to be read as flat.

Enable Tooltips: Checking this option will turn tool tips on/off at a global level.

Save Preferences Configuration

Save Preferences?: Save the changes you have made to the preferences. Apply will apply the changes to the current Knald session only. Save will save the changes you have made and apply them to the current and future sessions of Knald that you run. Cancel will revert any changes that you have made back to the last save that you made