[doc] Add Taichi THREE to documentation

README.md

@@ -48,17 +48,21 @@ Please build from source for other configurations (e.g., your CPU is ARM).
 ## Links
 
 - [Taichi Forum](https://forum.taichi.graphics): Powered by Discourse, Taichi offical forum for discussing issues and sharing ideas.
-- [Taichi Simplified Chinese Documentation](https://github.com/taichi-dev/taichi-docs-zh-cn): Translated by Taichi community, welcome contribution!
+- [Taichi Simplified Chinese Documentation](https://github.com/taichi-dev/taichi-docs-zh-cn): Translated by the Taichi community, welcome contribution!
 - [Taichi Conference](https://github.com/taichi-dev/taichicon): Taichi Online Virtual Conference available in both Chinese and English, approximately per-month.
 - [GAMES 201 Lectures](https://github.com/taichi-dev/games201): (Chinese) A hands-on tutorial on advanced physics engines based on Taichi, per-week.
 
 ---
 
+- [Taichi GLSL](https://github.com/taichi-dev/taichi_glsl): A Taichi extension library providing a set of GLSL-alike helper functions.
+- [Taichi THREE](https://github.com/taichi-dev/taichi_three): A 3D rendering library based on Taichi (work in progress).
 - [Taichi Elements](https://github.com/taichi-dev/taichi_elements): A High-Performance Multi-Material Continuum Physics Engine based on Taichi (work in progress).
+
+---
+
 - [LBM Taichi](https://github.com/hietwll/LBM_Taichi): Fluid solver based on Lattice Boltzmann method implemented by Taichi programming language, by [Zhuo Wang (hietwll)](https://github.com/hietwll).
 - [Shadertoy reproduced by Taichi](https://github.com/Phonicavi/Shadertoy-taichi): Some prevalent shadertoys implemented in Taichi, by [QIU Feng (Phonicavi)](https://github.com/Phonicavi).
 - [DiffTaichi](https://github.com/yuanming-hu/difftaichi): 10 differentiable physical simulators built with Taichi differentiable programming, by [Yuanming Hu (yuanming-hu)](https://github.com/yuanming-hu).
-- [Taichi GLSL](https://github.com/taichi-dev/taichi_glsl): Manipulate Taichi with GLSL-alike helper functions.
 
 ## Developers
 

docs/extension_libraries.rst

@@ -14,5 +14,24 @@ library of Taichi, aiming at providing useful helper functions including:
 2. GLSL-alike vector functions like ``normalize``, ``distance``, ``reflect``.
 3. Well-behaved random generators including ``randUnit2D``, ``randNDRange``.
 4. Handy vector and matrix initializer: ``vec`` and ``mat``.
+5. Handy vector component shuffle accessor like ``v.xy``.
 
 Click here for `Taichi GLSL Documentation <https://taichi-glsl.readthedocs.io>`_.
+
+.. code-block:: bash
+
+    python3 -m pip install taichi_glsl
+
+
+Taichi THREE
+------------
+
+`Taichi THREE <https://github.com/taichi-dev/taichi_three>`_ or Tai3D is an
+extension library of Taichi to render 3D scenes into nice-looking 2D images
+in real-time (work in progress).
+
+.. image:: https://raw.githubusercontent.com/taichi-dev/taichi_three/16d98cb1c1f2ab7a37c9e42260878c047209fafc/assets/monkey.png
+
+.. code-block:: bash
+
+    python3 -m pip install taichi_three