缩裹修改器
The Shrinkwrap modifier allows a Grease Pencil object to "shrink" to the surface of another object. It moves each point of the object being modified to the closest position on the surface of the given mesh.
See also
囊缩约束 。
选项
最近的表面点模式下的囊缩修改器。
- 缩裹方法
This selector specifies the method to be used to determine the nearest point on the target's surface for each point of the modified object. Some options will add some extra, specific controls to the panel. See Wrap Methods for an explanation of each method.
- 吸附模式
Most modes support an additional setting to control how the point is moved to the target point selected by the methods described above. Some of the choices only differ if Offset is not zero.
- 在表面上
The point is always moved. The offset is applied along the projection line connecting the original point and selected target point towards the original position.
- 向内
The point is not moved if it is already inside the target. Offset shrinks the allowed volume towards the inside along the projection line.
- 外向
The point is not moved if it is already outside the target. Offset expands the exclusion volume towards the outside along the projection line.
- 表面外围
Like On Surface, but the offset is always applied towards the outside of the target.
- 表面上方
Like On Surface, but the offset is applied along the smooth normal of the target.
Note
The Inside and Outside options can be used for very crude collision detection. The inside vs outside determination is done based on the target normal and is not always stable near 90 degree and sharper angles in the target mesh.
- Target 目标
收缩目标，即收缩或被包裹的网格。
- 偏移量
必须与计算的目标位置保持的距离。
- Smooth Factor
Amount of smoothing to apply.
- 重复
The number of time to apply smoothing.
影响
参阅 过滤器影响。
缩裹方法
最近的表面点
这将选择囊缩目标表面上最近的点。
投影
投影模式。
这将会沿着选择的轴投射顶点，直到它们碰到收缩的目标。不会碰到收缩目标的顶点将保持原来的位置。
- Limit 限制
This is a distance limit between original point and surface. If the distance is larger than this limit point would not be projected onto the surface.
- 表面细分等级
在使用投射模式计算囊缩之前，会(临时)将 Catmull-Clark 细分应用于修改后的对象。
- 轴向
沿着修改对象的局部轴进行投影。这些选项可以相互组合，生成一个投影的 "平均轴" 。如果没有选择，则使用法线方向。
- 负向/正向
这允许您沿着选定的轴选择所允许的囊缩的方向。如果两个选项都启用了，修改器将尝试两种方式并选择最近的那种。
- 面剔除
该选项允许您阻断任何投影到目标面 "前面" (或 "背面" )的面。面的 "侧面" 是由它的法线决定的(在前面的面是 "法线" 的来源)。
- 反向剔除
如果启用了 剔除面 ，并且开启沿轴的 负向 ，则可以使用此选项来为 负向 反转 前 或 后 剔除选项。这在两个方向投影时都很有用。
- 辅助目标
要投射的另一个对象。
最近的点
这将会吸附顶点到囊缩目标上最近的顶点。它没有其他额外的选项。
此方法不支持在下面描述的 吸附模式 设置。
目标法线投影
这种模式类似于 最近的表面点 ，但会产生更平滑的投影，与之对应的是更慢的速度。
Instead of finding the closest point, it searches for the nearest point that has its interpolated smooth normal pointing towards or away from the original point position. Non-manifold boundary edges are specially handled as infinitely thin cylinders that emit normals in all perpendicular directions. Ignores flat shading and auto smooth settings.