一个三角形条带的外观。表面法线？或绕组？
Appearance of a triangle strip. Surface normals? Or windings?
我细分下所有模型几次检查是否有洞；在模型上雕刻几下检查表面法线是否正确等等。
For example, I would subdivide all the meshes a couple of times to check for any holes, sculpt on them a little to check for proper surface normals, etc.
这类板的横向剪切变形效应必须予以考虑，因而层板不同层的表面法线的转角是不同的。
The effect of transverse shear deformation is considered and Angle of rotation of surface normal for each layer is different.
重要的：光线追踪贴图和光线追踪材质使用表面法线来决定一束光线是否进入或脱离表面。
Important: Raytrace map and Raytrace material use a surface's normal to decide whether a ray is entering or exiting a surface.
晶体倍频中当晶体表面法线与相位匹配方向不一致时，需调整入射光方向使相位失配最小。
It is necessary to adjust the direction of incident light for minimum phase mismatching when the direction of phase matching deviated from crystal normal direction.
为保障航空发动机的可靠性，要求精确测量发动机叶片不同界面处的内、外表面法线方向的厚度。
Precision measurement of blade wall thickness along the common normal of inner and exterior surfaces is required to guarantee the reliability of air engine.
激光功率密度达相对论强度以上时，靶后表面法线方向快电子能谱拟合平均温度高于已有的温度定标率。
The temperature of hot electrons is much higher than that expected by the empirical scaling law as the laser intensity reaches the relativistic.
下图演示了将法线贴图附加在低分模型上，这里你可以看见各个分量分别为表面添加了那些附加的信息。
Here the normal map is applied to the low-detail model, and you can see how each channel encodes the surface information along each axis.
一个物体空间的法线贴图，仅从整个模型的自身朝向检视物体，并据此解算在它表面的每个像素的方向。
An object space normal map only looks at the orientation of the entire model it's applied on to calculate the per pixel directions on it's surface.
因为法线贴图会被映射到表面上，所以它已经是在切线空间中了。
Because the normal map is mapped to the surface, it already lies flat in tangent space.
记住两个无限接近的表面在接触之前的最短距离是沿着接触点法线方向。
Bear in mind that the shortest distance that two infinite short surfaces can approach each other before contact is in the direction of the contact normal.
法线会判断指定的三角形表面是否会被照亮。
法线会判断指定的三角形表面是否会被照亮。
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