UV Transform 【UV变换】

UVW Transform

The UVW Transform Texture node takes an input texture and applies a map to transform the input texture’s UV layout on top of the input texture’s own UV coordinate transformation. This concept becomes more useful when used in conjunction with other mapping textures to combine different scales/orientations/translations of that same texture to create a larger detail range.
UVW 变换纹理节点接受一个输入纹理，并应用一个贴图在输入纹理的紫外坐标变换之上变换输入纹理的紫外线布局。当与其他映射纹理结合使用时，这个概念变得更有用，可以组合同一纹理的不同比例尺/方向/平移，以创建更大的细节范围。

HOW TO USE

如何使用
Open the Node Editor and prepare the setup as you see in the image below. Here, the “Compare” node is used for the condition of the two identical image textures and “UVW Transform” node applied one of them to add detail. It’s very useful to create interesting effects like a kaleidoscope or adding details for the existing texture. You are not limited to the compare node, as in the example — you can also use mix, cosine mix, add, multiply or subtract.
打开“节点编辑器”，准备如下图所示的设置。这里，“ Compare”节点用于处理两个相同的图像纹理，“ UVW Transform”节点应用其中一个来添加细节。创建有趣的效果非常有用，比如万花筒或者为现有的纹理添加细节。您不必局限于比较节点，如本例所示ー您还可以使用 mix、 cosmix、 add、 multiply 或 detonate。