readme update

promt update

CMakeLists.txt

@@ -28,10 +28,3 @@ if (NOT LIBIGL_FOUND)
 endif()
 
 add_subdirectory(0_dummy)
\ No newline at end of file
-add_subdirectory(1-1_cannonball)
-add_subdirectory(1-2_spring)
-add_subdirectory(2-1_spinning)
-add_subdirectory(2-2_gyro)
-add_subdirectory(3_collision)
-add_subdirectory(4_mss)
-add_subdirectory(5_fluid)
\ No newline at end of file

README.md

@@ -39,3 +39,19 @@ zip NAME_ID_0_dummy.zip 0_dummy/*
 ```
 
 Rename your compressed file following the rule *`NAME_ID_XXX`*.
+
+
+## FAQ
+
+* Command `cmake ../` stuck at `Cloning into 'eigen'...` or other cloning.
+
+    This may caused by problem of accessing github. Please first try use [SJTU VPN](!https://net.sjtu.edu.cn/wlfw/VPN.htm) and compile. 
+
+    Also, some repos are available on our own server, such as *Eigen*. The download info of libigl dependencies is located at file `libigl/cmake/LibiglDownloadExternal.cmake`. For example, you can change the link at line 70 to `http://dalab.se.sjtu.edu.cn/gitlab/xiaoyuwei/eigen.git` use eigen mirror repo at DALAB server.
+
+    glfw (http://dalab.se.sjtu.edu.cn/gitlab/xiaoyuwei/glfw.git) and imgui (http://dalab.se.sjtu.edu.cn/gitlab/xiaoyuwei/imgui.git) are also available on our server.
+
+
+----
+
+The main part of this framework refers to physical-based simulation course at ETH Zurich.
\ No newline at end of file

include/Gui.cpp

@@ -15,15 +15,15 @@ void Gui::start() {
 	// message: http://patorjk.com/software/taag/#p=display&v=0&f=Roman&t=PBS%2019
 	std::string usage(
 		R"(
-          ooooooooo.   oooooooooo.   .oooooo..o
-          `888   `Y88. `888'   `Y8b d8P'    `Y8
-           888   .d88'  888     888 Y88bo.     
-           888ooo88P'   888oooo888'  `"Y8888o. 
-           888          888    `88b      `"Y88b
-           888          888    .88P oo     .d8P
-          o888o        o888bood8P'  8""88888P'
-
-  252-0546-00L Physically-Based Simulation in Computer Graphics @ ETH Zurich
+oooooooooo.         .o.       ooooo              .o.       oooooooooo.  
+`888'   `Y8b       .888.      `888'             .888.      `888'   `Y8b 
+ 888      888     .8"888.      888             .8"888.      888     888 
+ 888      888    .8' `888.     888            .8' `888.     888oooo888' 
+ 888      888   .88ooo8888.    888           .88ooo8888.    888    `88b 
+ 888     d88'  .8'     `888.   888       o  .8'     `888.   888    .88P 
+o888bood8P'   o88o     o8888o o888ooooood8 o88o     o8888o o888bood8P'  
+		  
+		  Computer Animation
   		Course Exercise Framework
   
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