ToolTool shading tutorials.http://tuts.uvdolls.net/shading/tool/Shading 2 in Serif Photoplushttp://tuts.uvdolls.net/shading/tool/shading-2-in-serif-photoplus-l66.htmlLearn the basic techniques for shading using the brush and smudge tools in Serif Photoplus (a free software.)Shading 1 in Serif Photoplushttp://tuts.uvdolls.net/shading/tool/shading-1-in-serif-photoplus-l65.htmlLearn the basic techniques for toolshading using the gaussian blur filter in Serif Photoplus (a free software).