From 71117377ba6d24a4a8ca6e4b866e3c247d29b6cb Mon Sep 17 00:00:00 2001
From: lmj01 <lmj01@users.noreply.github.com>
Date: Mon, 29 Jan 2024 08:50:40 +0800
Subject: [PATCH] update

---
 cg/geometry.md      | 8 ++++++++
 cg/shader.md        | 4 ++++
 cg/threejs/index.md | 7 ++++++-
 cg/tools/CAD.md     | 4 ++++
 4 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 cg/geometry.md

diff --git a/cg/geometry.md b/cg/geometry.md
new file mode 100644
index 0000000..66a3c26
--- /dev/null
+++ b/cg/geometry.md
@@ -0,0 +1,8 @@
+# Geometry
+
+## Projective Geometric Algebra
+
+- [Projective Geometric Algebra](http://projectivegeometricalgebra.org/)    
+- [Conformal Geometric Algebra -- CGA](https://conformalgeometricalgebra.org/wiki/index.php?title=Main_Page)
+- [Rigid Geometric Algebra -- RGA](https://rigidgeometricalgebra.org/wiki/index.php?title=Main_Page)
+- [A C++ library that implements much of this math is available under the MIT license on GitHub](https://github.com/EricLengyel/Terathon-Math-Library)
\ No newline at end of file
diff --git a/cg/shader.md b/cg/shader.md
index 2aad6e8..877bcd3 100644
--- a/cg/shader.md
+++ b/cg/shader.md
@@ -138,5 +138,9 @@ mat3(
 - [WebGPU Shading Language](https://gpuweb.github.io/gpuweb/wgsl/)
 - [WebGPU深入探索](http://www.bimant.com/blog/webgpu-deep-dive/)
 
+## 参考
+
+- [the books of shader详细解说shader的开源书籍](https://thebookofshaders.com/)
+- [GPU Pro 360 Guide to Geometry Manipulation书籍]()
 
 
diff --git a/cg/threejs/index.md b/cg/threejs/index.md
index 32cb8cc..2e56a63 100644
--- a/cg/threejs/index.md
+++ b/cg/threejs/index.md
@@ -3,4 +3,9 @@
 - [乱记](./threejs.md)
 - [Bump map](./bumpmap.md)
 - [RayCaster](./raycaster.md)
-- [Loader细节](./loader.md)
\ No newline at end of file
+- [Loader细节](./loader.md)
+
+## 参考
+
+- 
+- [一个模拟PC桌面的个人网站,可以参考](https://henryheffernan.com/)
\ No newline at end of file
diff --git a/cg/tools/CAD.md b/cg/tools/CAD.md
index 5fde8ae..39ee28b 100644
--- a/cg/tools/CAD.md
+++ b/cg/tools/CAD.md
@@ -16,6 +16,10 @@
 图框
 ### 组
 
+## [exocad](https://exocad.com/)
+
+Exocad是一款跨平台的应用程序，免费使用。
+
 ## 参考
 
 - [FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size](https://github.com/FreeCAD/FreeCAD)