By Denis Perevalov, Igor (Sodazot) Tatarnikov
Create wonderful, interactive openFrameworks-based functions with this fast paced guide
About This Book
- Generate 2D and 3D photographs with openFrameworks
- Create a video synthesizer venture and run it on multi-platform devices
- Use networking and Arduino to regulate your application
Who This booklet Is For
What you are going to Learn
- Install openFrameworks and create a brand new project
- Generate 2nd and 3D graphics
- Mix pictures and video clips and procedure them with shaders
- Add GUI controls and regulate them from exterior units and apps utilizing the OSC protocol
- Control parameters with a timer, Perlin noise, and sound and textual content files
- Use the Arduino to regulate your application
- Build a video synthesizer project
- Run your undertaking on iOS, Android, and Raspberry Pi devices
openFrameworks is a cross-platform programming toolkit and library to accomplish artistic coding in C++. It includes all you want to successfully enforce real-time projects, comparable to producing second and 3D snap shots, processing video and sound, and utilizing networking.
openFrameworks necessities is a consultant that may be used for studying and utilizing openFrameworks to improve artistic and inventive real-time functions. it's a fast moving instructional that starts with fitting openFrameworks, after which takes a step by step technique in the direction of utilizing openFrameworks to construct a video synthesizer undertaking. we are going to examine and enforce good points equivalent to 2nd and 3D portraits, GUI, shaders, response on sound, the OSC networking protocol, and the Arduino.
This booklet will empower you with the sensible talents required to construct artistic apps and initiatives utilizing openFrameworks.
Read Online or Download openFrameworks Essentials PDF
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Extra resources for openFrameworks Essentials
Png" ); Note that the Return (Enter) control key in openFrameworks is denoted as OF_KEY_RETURN. All other control keys begin with OF_KEY_ too. For example, OF_KEY_LEFT means the left cursor key. The ofSaveScreen function saves the screen content to a file. png, located in the bin/data folder of the project. If you want to save screenshots to files with different names, the simplest way to achieve it is to use a random number generator to choose filenames. png. This code is based on using the ofRandom(0, 1000) function, which generates floats from 0 to 1000 (and the result is strictly less than 1000).
At first, set countX to 1. Then, only one primitive will be drawn in the center of the screen. Now, adjust all controls in the Primitive group and explore how they affect the primitive's shape and color clarity. 2. Now, increase the value of countX to 30 or more, and set non-zero values for stepX and twistX. Then, a stripe pattern will be generated (we discussed such patterns in the previous chapter). Now change shiftY and rotate and explore how it affects the geometry of the resulting pattern.
When stepX is zero, you will get a circular pattern, that is, a pattern obtained by a primitive rotating around some point. 899998. Playing with the project, very soon you will notice that it would be desirable to have an autosave feature, which automatically restores the last state of GUI controls when the project restarts. Let's do it now! Implementing the autosave feature Autosaving can be implemented by saving the GUI state to a file when the project ends, and loading the GUI state from this file on project startup.