prims (surface_node, primitive_number, attribute) This can also be used to read the value of a primitive intrinsic by specifying "intrinsic:name_of_intrinsic" instead of an attribute name. …

Returns the list of points on a primitive. When running in the context of a node (such as a wrangle SOP), this argument can be an integer representing the input number (starting at 0) to read …

而houdini中的primitive指的是组成一个物体的最小元素，基本初始体。Primitive其实有很多种，本文最后会介绍。而在操作polygon模型的时候，它才是指面。具体的说明可以查阅一下帮助文 …

While poly prims are by far the most used kind of primitive, houdini has a wide range of prims. As mentioned right at the start, you can render points by themselves and they'll be represented as …

Splits USD geometry prims into child primitives based on geometry subsets or primvar values. This node has two methods for “extracting” pieces of a geometry prim: Split the prim by faces …

使用VEX(速度更快)：使用一个attribwrangle，run over选择primatives，不需要添加for循环节点，因为运行在 primitives 上就默认对所有prims进行操作了

2020年1月5日 · 在Houdini中，可以使用Reference LOP ，使用LOP网络中的节点将参考添加到要在内存中构建的层。你可以使用 Sublayer LOP将现有子层（.usd文件）加载到当前阶段的层 …

在wrangle节点的Run Over下拉菜单中，我们将Points改为Primitives： 你能看到平面上的颜色边缘显得更锐利了，就像8bit像素游戏一样的风格。 同时，你也能注意到，@Cd属性 …

2022年4月8日 · Trying to compare the normals of the faces on a mesh and group the same ones together. If you're not familiar: nprimitives = the total number of faces, primnum = the currently …

Each Prim resides inside a Geometry object and stores some sort of 3D geometric primitive, like a polygon, a NURBS curve, or a volume. Each primitive usually contains a set of Vertex objects, …