Last week we configured the examples repo to work with two remotes. Let's fetch this week's upstream changes.
$ cd ~/cs40/examples $ git fetch upstream $ git merge -X ours upstream/master
After this step, you will need to manually edit the top level
CMakeLists.txt to add the new subdirectories.
$ tail ~/cs40/examples/CMakeLists.txt add_subdirectory(w01-intro) add_subdirectory(w02-opengl) add_subdirectory(w03-cube) add_subdirectory(w04-stack-texture) #add this w05 line add_subdirectory(w05-projection)
Before compiling, you will need to add a symlink in your
w05-projection source folder.
cd ~/cs40/examples/w05-projection ln -s /usr/local/doc/textures data cd ..
If everything went well, you should be able to go into your
build directory and run
make -j8 to compile the week 05 examples.
cd build make -j8 cd w05-projection ./projection
o key toggles between an orthographic and perspective projection matrix. The code also uses the
lookAt method to construct a view matrix. Note the order of matrix operations in the vertex shader.
uniform mat4 model; /* move object in world */ uniform mat4 view; /* transform to eye coordinates */ uniform mat4 project; /* project to clip volume */ ... gl_Position = project * view * model * vPosition;