![]() Notice that the first option is to set the entire mask to White, which will result in full opacity on the layer (no transparency from the mask). There are many options for initializing the Layer Mask. This will then bring up the “ Add a Mask to the Layer” dialog with some options: You can also add a layer mask through the menus: Right-Click on the layer you want to add a mask to (the “Teal” layer in my example), and the Context menu will show an option to Add Layer Mask…: ![]() The teal layer is the active layer (look for the white border), and the one which we will add a layer mask to. There is a base image at the bottom of the stack, and a single layer of teal over it. The process for adding them is simple.įor this example I will use a simple image with only two layers, as shown above. Layer masks need to be added to a layer before they can be used. This flexibility to define the opacity of different areas of a layer is the basis for more interesting image manipulation techniques such as selective coloring and luminosity masking. This modification of a layer’s transparency through a mask is non-destructive to the layer itself. This differs from the use of the layer Opacity slider as a mask has the ability to selectively modify the opacity of different areas across a single layer. They allow you to selectively modify the opacity (transparency) of the layer they belong to. tga don’t compress the file.Layer masks are a fundamental tool in image manipulations. You can also use the ripple filter on the layer mask.įor additional highlights, add a transparent layer on top and add your highlights, then run gaussian blur, the top layer opacity must be set to a very low value in this case. Experiment with Period and Amplitude until you like it. If you want curly hair, go to filters now and choose Filters, Distort, Ripple. Click the Layer menu on top of your big image and choose Anchor Layer. Move the layer mask downwards to the bottom of your hair texture image. If you did it the right way, it looks like this now : Move your mouse to your big hair texture image and click paste. Select your hair texture layer, right click it, select: Add Layer Mask and choose the first option ( white).ĭouble click the small white icon that appears on the right side of your hair texture layer, this is our mask layer. Just hold down your mouse button and drag it. Move this layer down under your hair texture layer. Click Edit from the main menu and then copy.Ĭlick the Layer Icon in your toolbox window. Select the middle of your image, like so. Open the rectangular Marquee Tool in your toolbox window. Re-open Filters and run motion blur again with the same settings. Open Colors, this is on top of your image window, and click Threshold. Re-open Filters, Blur, Motion blur and use motion blur with a length of 120 and an angle of 90. Re-open Filter, Noise and add HSV Noise, with a Holdness of 1, you can play with the other settings. Open Filters, Artistic and Cubism, run the cubism filter with a Tile size of 30, Saturation 2.5 Use the paintbrush tool with a big brush and paint black stripes on your white background. Open a new image in the size of your hair texture image. Set the background color back to white and the foreground color to black. Don’t reach for the eraser tool, let’s do that with a layer mask. Go to Colors, adjust Hue and Saturation, Contrast and Brightness. You can run Filters again after this step and add some Gaussian blur but don’t overdo it, a value of 0.7 or 0.8 is sufficient. Re-open Filters, Blur, Motion Blur, enter length 255 and angle 90. Re-open Filters, Noise, RGB Noise, click okay. Then open Filters, Render and Clouds, Difference Clouds, click okay. Better use 256*512 or 256*256 pixels for fast rendering.Ĭlick the black and white squares in your toolbox window and choose a darker and a lighter shade of brown as foreground and background colors. Open a new file in Gimp, I used a 512*512 image size for this tutorial, but this is not really recommended for hair textures. Oh, and its easier to follow the tutorial, if you set your Gimp to English as the default language, to do that, click Windows Start, then Programs and GTK, there is a language selection option. Visit my flickr photostream to see enlarged pictures, click the picture and then the magnifying glass on top to zoom in. This tutorial is not written for absolute beginners, please contact me, if something is not clear.
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