This texture creates a procedural flake normal map that can be used e.g. for car-paint-like materials. It is intended to be used as a normal map inside the bump slot of a material. Note that the map does not perform any filtering, so small flakes require a lot of AA samples to get clean.

When connected to a Normal Map shader use Tangent as the Output Space on flakes, Tangent as the input space (Mode) on the Normal Map shader, and disable Interpret 8/16 bit normal map as linear. A typical workflow would be to connect Flakes to Standard Surface Normal Camera.

2017年9月26日 · One possibility would be a Voronoi diagram (see also glslsandbox). The color calculated from the Voronoi algorithm has to be converted to a normal vector (normalized). The Z coordinate has to be positive. Finally, the normal vector has to be encoded in the RGB channels of a texture (nv * 0.5 + 0.5):

2018年1月12日 · 法线贴图 (Normal Mapping)是一个游戏编程技巧, 它允许我们渲染相同数目的多边形 (例如低解析度的网格模型), 但是在计算光照时使用高解析度网格模型的法线. 这为我们带来更好的感受, 关于深度, 真实性和光滑度. (图像来自于这个出色的博客文章 Making Worlds 3 - That's no Moon...) 高面数网格模型或者说精雕模型的法线被编码到一个纹理贴图 (即法线图)中, 当我们渲染低面数网格模型时会从片段着色器中对它进行取样. 结果如下: 译者注: 左侧是4百万个三角 …

This texture creates a procedural flake normal map that can be used e.g.= for car-paint-like materials. It is intended to be used as a normal map in= side the bump slot of a material.

2016年8月5日 · 法线贴图 (Normal Mapping)是一个游戏编程技巧, 它允许我们渲染相同数目的多边形 (例如低解析度的网格模型), 但是在计算光照时使用高解析度网格模型的法线.

虽然Octane有flakes的OSL预设，不过默认的不能控制flakes贴图的投射模式。 新建一个OSL节点，并把以下代码复制替换进去，然后点击上方的Compile按钮即可。

This texture creates a procedural flake normal map that can be used e.g. for car-paint-like materials. It is intended to be used as a normal map inside the bump slot of a material. Note that the map does not perform any filtering, so small flakes require a lot of AA samples to get clean.

This shader creates a procedural flake normal map that can be used for materials such as car paint.

Create a flakes shader and connect its "Out Normal" to the base Geometry > "Bump Map" input. Enable 3D flakes by increasing the depth parameter and adjusting the step size parameter according to your scene scale.