顶点的拐角

顶点的拐角

Selects a neighboring face corner of a vertex and outputs its index.

This node is a bit special because it operates in two different domains. First, it evaluates a Weight for each corner in the geometry. Then, for each item in the context domain, it will:

Pick a vertex from the geometry based on the Vertex Index.
Find the face corners adjacent to this vertex.
Sort these corners by their associated weight.
Pick a corner from the above sorted list based on the Sort Index, where 0 means the corner with the lowest weight, 1 means the corner with the second-lowest weight and so on.
Output the geometry-wide index of this corner.

输入

顶点编号

The index of the vertex for which to find the corners.

Note

If this input is not connected, it uses the index of the context item, which means it’s important that the node is evaluated in the Point domain.

权重

The weights of the corners in the geometry. Unlike the other inputs which follow the context domain, this one is always evaluated in the Face Corner domain.

The corners are sorted by their associated weight in ascending order. Corners with the same weight are sorted by their index.

编号排序

The 0-based index of the corner to select from the vertex’s sorted corners. If this value is outside the range of valid indices, it wraps around.

属性

该节点没有属性。

输出

拐角编号

The geometry-wide index of the selected corner. You can pass this to the 在编号处评估 or the 采样编号 (with the domain set to Face Corner) to retrieve details about the corner.

总数

The number of adjacent corners, which is also the number of faces.