To make metal patches in L3DT, you do not need to manually apply the patch textures or edit the metal map manually. Instead, you simply indicate the position and the type of the metal patches in the 'metal patch' map. Later, we will use the apply metal patch textures button in the Spring Mapping wizard to 'bake' the metal patches onto the texture and metal map.
L3DT comes with a preset list of metal patches. If you would like to use custom patch textures, or different metal values, please use the 'Metal patch textures' button in the Spring Mapping Wizard, as described on this page of the tutorial.
To place metal patches, select the 'edit metal patch map' button in the Spring Mapping wizard, highlighted below:
This will make L3DT display the 'Spring-MetalPatches' map and open the 'indexed map brush' tool (as shown below), which we'll use to apply the metal patches.
Note that the map shown above has the texture image drape applied. If your 'Spring-MetalPatches' map appears to be all black, press the 'Apply image drape' button in the Spring Mapping Wizard.
In the value drop-list in the brush tool, select the metal patch type you would like to apply:
The Spring plugin supports four types of metal patches, which are:
The patch textures and metal values can be changed using the metal patch settings button in the Spring Mapping wizard.
To place a metal patch, simply left-click in the map window to put down a single pixel of the desired value (small/medium/large/etc patch), as below:
Here I have created a small patch (blue), a medium patch (green), a large patch (cyan) and a very large patch (red).
Each metal patch type is displayed in a different colour, as summarised below:
If you hover the mouse over a patch, the type of the patch will be shown in the statusbar at the bottom-right corner of the window.
To remove a patch, select the 'none' option from the value drop-list, and then left-click on the patch pixel in the map display.
After you have placed all the metal patches, you are ready to proceed to editing the geovent map.
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