We will start by maiking a 256x256 image, and therefore apply any type of base texture for our metal, iv chosen this one ( it is not tileable )
首先用一张256x256的金属素材来打底,我选了这张细节简单的金属图片,这样才支持我们制作任何需要的金属类型。
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Now i will put in the top a somekind of reference from where our lightsource is coming , in this case, in the upper left corner.
现在在图中用一种光线效果,标注光源的位置,本例中我们将它放置在左上角。2.jpg (12.77 KB, 下载次数: 2)
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The next step is to create a selection of the thing we want to txture, ill make a somkind of metal box with some stuff on it, therefore i pick the rectangle selection tool ( or the polygonal lasso, since you can get this shape ) and draw a selection. Very nice except that the original selection is hard, what i mean is that everything that you paint on iut will be jagged with the exterior of its selection...we want it to be slightly soft, so when we create the selection we right click so that we can "feather" it out , in this case i used an ammount of 0.5 , see screenie for further detail.
接下来这个步骤是如何创建一个我们要改变材质的选区,我想在这搞一个附带其他金属部件的金属盒。我使用了矩形选择工具(或者是多边形套索工具,只要你能圈出想要的形状)并画出一个选区。但此时选区是硬边的,而我们需要的效果是画出来的东西,最好是在选区之外缘形成锯齿状...我们想要一点儿软边,所以我们创建选区后将其右击,将其羽化边缘设置成0.5,观看图示以获得更多细节。3.jpg (21.86 KB, 下载次数: 2)
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with the selection still up i will pick up the dodge tool and paint in with a very big brush ( around 300 pxl ) with very low itensityaround the 10-15% , then i click on drag , etc it at the area where the lightsource is coming from.在选区的状态下,拾取减淡工具,设置参数为一个非常大的笔刷(大致300像素)和很低的曝光度(大约10-15%),,在光源射入的方向拖曳绘制。4.jpg (14.92 KB, 下载次数: 2)
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If you cant find the dodge tool, heres an image to help you out.
如果你找不到减淡工具,这张图将帮你找到它。
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Now comes the harder part, we will get the dodge tool again , but this time we will hxxe a very xxall brush for the highlights of the edges, this will used to create a specular highlight effect that we see so commonly in metal, so you paint it in the areas where there are edges.接着我们进入相对较难的部分,再次拾取减淡工具,但这次我们使用一个很小直径的笔刷在物体边缘区域进行处理,来做出一种在金属材质上非常普遍的特有高光边缘。6.jpg (13.28 KB, 下载次数: 2)
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After the previous step we will create a selection , in this case the area above the top edge to give it depthness , and dont forget, always feather your selections in order to xxoid hard edges 经过以上的步骤我们能做出一个选区,在本例中靠上方的区域即是表示一个高度,别忘记,总是设置你的选区带点羽化,以免产生生硬的边缘
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Following that we will do the same we did with placing the lightsource , but this time it will be inside the selection that we hxxe made, so paint it with the dodge tool again NOTE : THE DODGE TOOL ALWAYS HAS THE "HIGHLIGHT" FUNCTION ON , we do the same with the edge in the left.接下来要用类似我们放置高光的方法,但这次只局限在我们前面框选的区域里,也就是用减淡工具处理,(减淡工具总是被用来做出高光和反射光的效果),在左边区域也进行此操作。8.jpg (13.49 KB, 下载次数: 2)
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Now we select the area inside , wich wont sufer much editing, and feather it out and give a slight shadow coming from the top , for this we use the BURN TOOL with the same settings as the dodge tool,( highlight mode现在选择里边的区域,它不需要很多的编辑,羽化它并在左上角用加深工具给予轻微的阴影,用高光模式哦,设置也和减淡工具类似。9.jpg (13.37 KB, 下载次数: 2)
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Taking the next step will be doing the exact thing in step 8 , except that we will start shadowing the down areas , with the burn tool again.像我们第八步里做的,我们再用加深工具将阴影赋予右下和下边的两块表示深度的区域。10.jpg (13.35 KB, 下载次数: 2)
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