On Tue, 29 Jan 2008 11:11:00 +0800, Zhang Weiwu <[EMAIL PROTECTED]> wrote: > I wish to achieve the effect to add a deep pucker on the skin, as of > the bone is broken underneath the sking or there is a joint underneath. > Or should I use the word "wrinkle" or "crinkle", I am not sure. I am a > new gimp user who just managed to learn conceptual things like layers, > path, selection, mask and channel, and now I don't know where to start > to read if I wish to get it done.
This is accomplished by adding wrinkles to the skin. To do this, you create your skin layer first. Then add a layer on top of that and fill it with the shading for the wrinkles. Shading (also known as shadow maps) is always done with a layer that is desaturated. The shading layer is then blended with the layer below using one of the layer blend modes, often Grain Merge, Multiply or Overlay though others may work better depending on the skin texture. This gives the skin layer the appearance of having a shape that is light unevenly - ie it looks like wrinkles. A smooth version of wrinkles was originally included in my book "The Artist's Guide to GIMP Effects" but then we decided to add it to the web site instead: http://www.graphics-muse.org/artistsguide/?page_id=65 This example is not exactly like what you're looking for though the idea is the same. This example uses a desaturated "wave" over witch a shadow from some text is applied. In your case, the wave layer from this example would be the wrinkle layer for your project. Adjust it accordingly to increase contrast to give the wrinkles more distinct edges. -- Michael J. Hammel Principal Software Engineer [EMAIL PROTECTED] http://graphics-muse.org ------------------------------------------------------------------------------ The aim of every artists is to arrest motion, that is life, with artificial means. -- William Faulkner _______________________________________________ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
