shensunbo Blog

「离开世界之前一切都是过程」

vscode 背景色修改"

恢复之前的设置 Settings Sync: Show Synced Data 背景色和字体模板 settings.json 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 4...

Posted by shensunbo on October 20, 2025

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在docker中安装lcov2.3

dockerfile 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 ...

Posted by shensunbo on September 29, 2025

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github上创建android stuidio 项目

push an existing repository from the command line git remote add origin https://github.com/shensunbo/android_native.git git branch -M main git push -u origin main

Posted by shensunbo on September 9, 2025

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交叉编译android native cpp lib

编译 build(for android studio simulator) 1 2 3 4 5 6 7 8 export ANDROID_NDK=/opt/ndk cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake \ -DANDROID_ABI=x86...

Posted by shensunbo on September 3, 2025

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vscode正则表达式

为mesh名称添加后缀 (“mesh_name”:\s*”)([^”]+)(“) $1$2_suffix$3

Posted by shensunbo on September 2, 2025

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phong 模型

光照环境光颜色与漫反射颜色相乘作为环境光法线将法线由模型空间变换到世界空间使用去除平移后的模型矩阵的逆转置矩阵，需要再CPU端进行计算。（如果模型矩阵不包含非同一缩放，逆转置矩阵等于模型矩阵） glm::mat3 normalMatrix = glm::transpose(glm::inverse(glm::mat3(modelMatrix))) 法线贴图 ...

Posted by shensunbo on August 25, 2025

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figma导出svg

figma导出svg 选中要导出的元素 ctrl + shift + E or file -> export 如果显示无法导出，在properties中选择export 的+号增加一个导出配置，可以选择svg或者png

Posted by shensunbo on August 21, 2025

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程序、链接和库

linux 进程布局 Linux Process Memory Layout

Posted by shensunbo on August 20, 2025

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H.264 BASIC

overview SPS 存储视频序列的全局编码参数，解码器需要先读取 SPS 才能正确解析后续的视频数据 PPS 存储单帧图像的编码参数，解码每一帧前需先读取对应的 PPS [NAL Unit 1: SPS] → [NAL Unit 2: PPS] → [NAL Unit 3: I-slice] → [NAL Unit 4: P-slice]... f...

Posted by shensunbo on August 20, 2025

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cpp 中的锁

demo 简单的锁与条件变量实例 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 #include <condition_variable> #include <mutex> std::mutex mtx; std::condition_variable cv; bool ready = false; void ...

Posted by shensunbo on August 20, 2025

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