- Mastering openFrameworks：Creative Coding Demystified
- Denis Perevalov
- 62字
- 2021-08-06 16:54:16
Chapter 2. Drawing in 2D
Drawing is one of the main capabilities of openFrameworks. Here, we consider the basics of 2D graphics, including drawing geometric primitives, working with colors, and drawing in an offscreen buffer. In this chapter we will cover:
- Geometric primitives
- Using ofPoint
- Coordinate system transformations
- Colors
- Using FBO for offscreen drawings
- Playing with numerical instability
- Screen grabbing
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