曲率 3D

基于下层 3D 曲面的径向曲率的修改器。2D 曲线在某个点上的 "曲率 <https://en.wikipedia.org/wiki/Curvature>`__ 是曲线在该点处旋转速度的度量。转弯越快,该点的曲率就越大。如果曲线是一条直线,则曲率为零。径向曲率是为 2D 曲线计算的曲率,该曲线出现在 3D 曲面与由视点(照相机位置)和该点处曲面的法线方向定义的平面之间的横截面处。

要计算径向曲率(因此要使此修改器产生任何效果),必须打开 "面部平滑度" 选项,并且对象需要具有 平滑着色

Min Curvature and Max Curvature

The limits of the mapping. If the current point of the stroke is at Min Curvature or less from the target, it will take the start point of the mapping, and conversely, if it is at Max Curvature or more from the target, it will take the end-point value of the mapping.

../../../../../../_images/render_freestyle_parameter-editor_line-style_modifiers_color_curvature-3d_example.png

Curvature 3D modifier demo by T.K. (blend-file).