shensunbo Blog

「离开世界之前一切都是过程」

blender 常用操作

修改物体本地坐标系原点进入编辑模式，选中要作为新的原点的点对齐游标，按 Shift + S → Cursor to Selected 返回物体模式，设置原点：右键 → Set Origin → Origin to 3D Cursor 测量按住ctrl吸附到点或者边按住xyz固定坐标轴给物体增加控制节点创建一个空物体(empty)，移动到合适的...

Posted by shensunbo on August 18, 2025

gtest basic

Matcher 使用 Contains 判断是否包含某个或者满足某种条件的元素判断 EXPECT_THAT 验证某个值（或对象）是否满足指定的匹配器（Matcher）条件: EXPECT_THAT(actual, matcher)

Posted by shensunbo on August 15, 2025

git 常用操作

stash delete range of stash for i in {24..4}; do git stash drop stash@{$i}; done 临时切换到一个提交节点验证 1 2 3 4 5 git checkout 9f2e90c28f4581270708d112a15ba8795e7ad23c ... git swit...

Posted by shensunbo on August 15, 2025

gerrit

clone git clone –depth 1 –branch master … push normal push git push origin HEAD:refs/for/master push to previous patchset git commit –amend git push origin...

Posted by shensunbo on August 12, 2025

opencv build

build linux version build_ti_linux.sh 1 2 3 4 5 6 7 8 9 10 11 #!/bin/bash source /opt/ospas120-2023.10/environment-setup-aarch64-oe-linux rm -rf build_ti_linux mkdir build_ti_linux cd build_ti_li...

Posted by shensunbo on August 7, 2025

renderer 常见问题

纹理注意在着色器中区分纹理是单通道还是多通道, 对于ao，specular，Metallic, Roughness 这些贴图，一般是单通道的，如果把单通道纹理当做多通道纹理使用，显示出来的结果会偏红色可以在linux上使用file命令查看：8-bit grayscale，8-bit colormap(?3通道), 8-bit/color RGB, 8-bit/...

Posted by shensunbo on August 5, 2025

opengl basic

basic pipeline VAO 和 VBO VBO 在GPU中存贮顶点数据等 VAO 描述VBO的属性，如何访问VBO中的数据 EBO 索引缓冲对象存储 VBO 中顶点的索引, 减少了内存占用和数据传输量 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...

Posted by shensunbo on August 4, 2025

assimp

下载对于x86版本，可以直接下载release的版本使用问题 aiProcess_PreTransformVertices flag cause meshes to merge, need manually perform coordinate transformation aiProcess_ValidateDataStructure will automatica...

Posted by shensunbo on July 25, 2025

bazel learn

bazel 基本规则 BUILD 文件： 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 // 编译依赖项 cc_library( name = "test"...

Posted by shensunbo on July 19, 2025

将qnx编译方式由qcc修改为gcc

qnx.nto.toolchain.cmake, 在这个文件中 1 2 3 set(CMAKE_C_COMPILER ${QNX_HOST}/usr/bin/qcc) set(CMAKE_CXX_COMPILER ${QNX_HOST}/usr/bin/q++) set(CMAKE_ASM_COMPILER ${QNX_HOST}/usr/bin/qcc) c...

Posted by shensunbo on July 16, 2025