在编号处评估
在编号处评估 节点允许访问上下文几何中其他元素的数据。它类似于 采样编号。主要的区别是,这个节点不需要几何体输入,因为使用了 场上下文 的几何体。
This node is also similar to the 在域上评估 node, except that the value to retrieve from the specified domain is specified by an index rather than an automatic domain interpolation.
输入
编号
The index of the element in the selected domain to retrieve data from, i.e. “the fourth face”, or “the first control point”.
数值
要检索属性的几何图形。
属性
域
The attribute domain used for evaluation of the Value input. This is useful because it can be a different domain than the domain from the field context, i.e. to choose a vertex for each face.
输出
数值
在给定编号处的输入场的值。