artisans的专栏

原创 图形学网站

https://www.scratchapixel.comhttps://learnopengl.com/http://www.flipcode.com/archives/articles.shtmlhttps://github.com/McNopper/OpenGLhttps://stanford.edu/class/ee267/lectures/http://www.realtim...

原创 调用youdao API

【代码】调用youdao API。

原创 fullscreen_triangle_vs

【代码】fullscreen_triangle_vs。

原创 gaussian 阴影

【代码】gaussian 阴影。

原创 变长模板测试

【代码】变长模板测试。

原创 Inheritance Is The Base Class of Evil

【代码】Inheritance Is The Base Class of Evil。

原创 简单的数据读写 fstream

【代码】简单的数据读写 fstream。

原创 大气渲染截图

原创 object pool

【代码】object pool。

原创 vulkan triangle

/** Vulkan Example - Basic indexed triangle rendering** Note:* This is a "pedal to the metal" example to show off how to get Vulkan up and displaying something* Contrary to the other examples, this one won't make use of helper functions or initia

原创 granite node test

【代码】granite node test。

原创 granite node test

【代码】granite node test。

原创 大气渲染 scratchapixel

【代码】大气渲染 scratchapixel。

原创 python class中插入代码

【代码】python class中插入代码。

原创 ctr + s reload shader

【代码】ctr + s reload shader。

原创 granite file system

原创 vsg链接不过的问题

vsg

原创 gdal工具函数

参考void setProjection(const std::string& sourceFile){ GDALAllRegister(); CPLSetConfigOption("SHAPE_ENCODING", ""); //解决中文乱码问题 CPLSetConfigOption("GDAL_FILENAME_IS_UTF8", "NO"); //解决中文路径崩溃 char* srs_str; OGRSpatialReference ogrSrs; ogrSrs.S

原创 osg create line

inline osg::Geometry* createLine(const std::vector<osg::Vec3>& allPTs, osg::Vec4 color, osg::PrimitiveSet::Mode model = osg::PrimitiveSet::LINE_STRIP, float nWidth = 2){ int nCount = all...

原创 osg 顶点属性

osg::Geometry* createLine2(const std::vector<osg::Vec3d>& allPTs, const std::vector<osg::Vec3d>& colors, osg::Camera* camera){ cout << "osg::getGLVersionNumber" << os...

原创 itemgetter

from operator import itemgettercutting_dim = 1points = [(6,8), (1,2), (0, 0), (10, -5)]points.sort(key=itemgetter(cutting_dim))print(points) #[(10, -5), (0, 0), (1, 2), (6, 8)]

原创 三角形内，均匀生成点

算法来自于PBRT CH13 std::default_random_engine eng(time(NULL)); std::uniform_real_distribution<> urd(0., 1.); std::vector<osg::Vec3d> PTs2; for (int i = 0; i < 10000; i++) { doub...

原创 shader snippets

shdrprecision highp float;uniform float time;uniform vec2 resolution;varying vec3 fPosition;varying vec3 fNormal;Wardfloat Ward(vec3 lightDir, vec3 viewDir, vec3 normal, float exponent){ ...

原创 三角形插值

// 计算权重 CalculateWeightBOOL CalcWeight(const osg::Vec3d& p0, const osg::Vec3d& p1, const osg::Vec3d& p2, const osg::Vec3d& k, double& a, double& b, double& c){ double Ar...

原创 osg visitor 扩展

#include "stdafx.h"#include <iostream>#include <osg/NodeVisitor>#include <osg/Node>#include "osg/Group"#include "osgDB/readfile"#include <osg/Geode>using namespace std;...

原创 string splite & create line

std::vector<std::string> Split(const string& src, const char& delim){ std::istringstream stream(src); std::string field; std::vector<std::string> result; while (std::getline(...

原创 osg 图元重启

osg::Geometry* createLine2(const std::vector<osg::Vec3d>& allPTs, osg::Vec4 color){ int nCount = allPTs.size(); osg::ref_ptr<osg::Geometry> pGeometry = new osg::Geometry(); osg:...

原创 osgearth StringUtils

/* -*-c++-*- *//* osgEarth - Geospatial SDK for OpenSceneGraph * Copyright 2019 Pelican Mapping * http://osgearth.org * * osgEarth is free software; you can redistribute it and/or modify * it un...

原创 leetcode 94. 二叉树的中序遍历

class Solution: def inorderTraversal(self, root: TreeNode): if not root: return [] stk = [] res = [] cur = root while stk or cur: ...

原创 python入门 装饰器

import timeimport mathdef print_time(func): def wrap(*args): # 为了能接收参数 t1 = time.time() res = func(*args) print("TIME", time.time() - t1) return res # 返回结果 ...

原创 scipy 绘制B样条

import numpy as npimport pylab as plfrom scipy import interpolatex_end = 2*np.pix = np.linspace(0, x_end, 10000)y = np.sin(x)# y = np.array([0, .15, 1, .5, 0, 1])# print(type(x))x_new = np.li...

原创 python str操作

strVal = []strVal.append(('->'.join(str(x) for x in [1, 100, 200])))print(strVal)# ['1->100->200']

原创 leetcode 211. 添加与搜索单词 - 数据结构设计

class Node: def __init__(self, c=''): self.is_end = False self.subNode = [] self.c = c def insert(self, word: str): next = None for sb in self.subNode:...

原创 leetcode208. 实现 Trie (前缀树)

class Node: def __init__(self, c=''): self.is_end = False self.subNode = [] self.c = c def insert(self, word: str): flag = False next = None ...

原创 python入门 property

class Test: """第一个类""" i = 123 def __init__(self): self.__pri_data = 21 @property def pri_data(self): return self.__pri_data @pri_data.setter def pri...

原创 python入门 list

l = [i*i for i in range(1, 6)]print(l)def change(x): return x*10 + 1l = list(map(change, l))print(l)l = [i*i for i in range(1, 6)]l = list(map(lambda x: x*10 + 1, l))print(l)[1, 4, 9...

原创 回溯模板

全排列def dfs(nums, d): if d == len(nums): print(nums) for i in range(d, len(nums)): nums[d], nums[i] = nums[i], nums[d] dfs(nums, d+1) nums[d], nums[i] = n...

原创 learn python

#合并两个有序的链表a = [1, 3, 5, 7, 9]b = [2, 4, 6, 8, 10]def dfs(a, b): ret = [] if a and b: if a[0] < b[0]: ret.append(a[0]) del a[0] ret.extend(dfs(a, b)...

原创 leetcode小函数， 根据字符串生成二叉树

根据"[1,2,3, null, null, 4, 5]"生成对应的二叉树，方便调试#include <sstream>#include <cstring>struct TreeNode { int val; TreeNode *left; TreeNode *right; TreeNode(int x) : val(x), left(NULL), ri...

原创 二叉树分层遍历

class Solution{ public: bool isSymmetric(TreeNode* root) { if (!root) return true; vector<TreeNode*> vec; vec.push_back(root); int cur = 0; while (cur < vec.size()) { int ...