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Using the Gimp to Change Eye Texture Iris Colors

Author: DragonEagle

Tools Needed

  • The Gimp

Introduction

For this tutorial you will need the gimp from http://www.gimp.org. We're going to change the iris color on an existing texture in as few steps as possible.

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Step 1 - Load your image in the gimp

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Load the image you want to modify into the gimp. It will usually be a jpeg image.

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Go to the layers dialog and select duplicate layer.

Step 2 - Setup the layer for your new color

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Click on the background color in the Gimp toolbox twice and set the sliders for your new base eye color

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In the layers dialog make sure you have the bottom layer selected. Hit Ctrl+A (Select|All) Ctrl+K (Edit|Clear) and Ctrl+Shift+A (Select|None) to fill the entire layer with your new background color.

Step 3 - Store the existing eye color for removal

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Make sure that your top layer is selected.

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Use the color picker tool to select the lightest (or close to it) color from the iris.

Step 4 - Select the iris for filtering.

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Using the wand tool, select the iris.

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You will have to hold down the Shift key and click in the iris a few times to get it all selected.

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Step 5 - Filter out the original color

This is where the real magic happens

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Click on the foreground color in the toolbox (the one you saved 2 steps ago.) Select the text in the Html Notation box and copy it to the clipboard

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Select Filters|Color|Color To Alpha from the menu in the picture edit window and you will get a dialog box like the one above. Click on the Color Select (outlined in red, ) paste the foreground color text into the HTML Notation box and click Ok.

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Click OK in the Color to Alpha dialog and watch your eye color change.

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Step 6 - Save the new texture

Hit Ctrl+Shift+A (Select|None) and save your new image as a jpeg somewhere where you can find it. Click “Export” if a dialog comes up saying that JPEG can't handle transparency. Apply your new texture to your model and you're done.