TODO search for similar camera libraries, but I can't find any in C++!
To add this library to your project, simply add these two lines to your CMakeLists.txt:
add_subdirectory(path/to/cam3d)
target_link_libraries(${PROJECT_NAME} PRIVATE cam3d::cam3d)Then include it as:
#include <cam3d/cam3d.hpp>View and Projection go together because they both contribute to define the camera frustum. This frustum is required by some controllers to make sure a point always remains under the mouse (needs to project from 3D-world to screen), and by some operations (shooting a ray for a given pixel in screen-space)
https://stackoverflow.com/a/33061294 https://vvise.iat.sfu.ca/user/data/papers/comparerotation.pdf https://blender.stackexchange.com/questions/657/what-is-the-difference-between-the-trackball-and-turntable-style-view-modes That's not what I thought trackball did in Blender! Generalized Trackball and 3D Touch Interaction: Look the CHAPTER 2. STATE OF THE ART section, it does a great job at presenting new controlers (Navidget, HoverCam). Also, CHAPTER 3. TOUCH-BASED VIRTUAL TRACKBALL does a great presentation of the trackball. -> check out MeshLab's camera
ZOOMING IS A MULTIPLICATIVE OPERATION!
Simply use "tests/CMakeLists.txt" to generate a project, then run it.
If you are using VSCode and the CMake extension, this project already contains a .vscode/settings.json that will use the right CMakeLists.txt automatically.