3D rendering: face normals and vertex normals

Now that we’ve reviewed the parameters that affect the appearance of objects (their brightness, color, etc.), we’re ready to start looking at some simple shading techniques. Recommended: Use NSDT editor to quickly build programmable 3D scenes 1. Normal line Normals play a central role in shading. Everyone knows that if we point an object toward […]

WebGL passes multiple data in the same buffer to the step and offset parameters of gl.vertexAttribPointer() of the vertex shader

Table of Contents Table of Contents In order to pass vertex coordinates into the shader, you need to follow these five steps: but! ! ! Sample code: Function specification of gl.vertexAttribPointer() stride parameter Vertex coordinate data offset parameter vertex size data First, analyze how to implement the example below as three points of different sizes […]

Yugong SeriesAugust 2023 WEBGL Special Topic – Vertex Method and Index Method of Drawing Methods

Article directory foreword 1. Vertex method 1. The concept of vertex method 2. Case Second, the index method 1. The concept of indexing 2. Case Summarize Foreword The drawing methods of WEBGL mainly include the following types: gl.drawArrays: Draw graphics directly using vertex arrays. This method needs to pass in an enumeration type to represent […]

Unity line drawing OnPopulateMesh function VertexHelper

About OnPopulateMesh function and VertexHelper class reference: OnPopulateMesh function and VertexHelper class of UGUI in Unity_Peter_Gao_’s Blog-CSDN Blog A plugin for drawing charts (line charts, treemaps, pie charts, radar charts). The bottom layer rewrites the OnPopulateMesh method in UGUI to realize the function of drawing lines with the mouse. OnPopulateMesh(VertexHelper vh) { } using System; […]

(16) In the graph, the algorithm idea of finding the shortest path from a vertex to other vertices, Dijkstra (Dijkstra), Bellman-Ford algorithm, Floyd (Floyd) algorithm

Directory algorithm thinking Implementation steps 1. Dijkstra algorithm execution steps: 2. Bellman-Ford algorithm execution steps 3. Floyd algorithm execution steps For example, in the figure above, find the shortest path from V1 to every other vertex. There are 3 common algorithms for finding the shortest path, namely Dijkstra (Dijkstra), Bellman-Ford algorithm, and Floyd (Floyd) algorithm, […]

[Data algorithm and structure] The unweighted directed graph G is stored in an adjacency list, find the in-degree and out-degree of each vertex in the graph G, find the vertex with the largest out-degree in the graph G and output the vertex number, calculate the number of vertices with an out-degree of 0 in the graph G, and judge whether there is an edge <i,j> in the graph G

Title Question:?Try to write an algorithm assuming that the unweighted directed graph G is stored in an adjacency list, and design and implement algorithms to solve the following problems. Find the in-degree of each vertex in graph G. Find the out-degree of each vertex in graph G. Find the vertex with the largest out-degree in […]