pixels

A playground for pixel-by-pixel software rendering and simple sound synthesis.

Example

Load the framework but draw nothing.

// (main.cpp)
#include "Example.h"

int main(int argc, char * argv[]) {
  return Example().run(argc, argv);
}

• Press the UP and DOWN arrow keys to adjust the 'pixel' size.
• Press the F10-F12 keys to change the rendering mode (F10=Pixel Buffer , F11=OpenGL Points, F12=Texture).

ExampleNoise

Draw every pixel with a random color changing each frame.

// (main.cpp)
#include "ExampleNoise.h"

int main(int argc, char * argv[]) {
  return ExampleNoise().run(argc, argv);
}

• Press SPACE to change the algorithm for creating pseudo-random numbers.
• Press the UP and DOWN arrow keys to adjust the 'pixel' size.
• Press the F10-F12 keys to change the rendering mode (F10=Pixel Buffer , F11=OpenGL Points, F12=Texture).

ExampleRects

Draw random rectangles and clip them accordingly.

// (main.cpp)
#include "ExampleRects.h"

int main(int argc, char * argv[]) {
  return ExampleRects().run(argc, argv);
}

• Press ENTER to add a single random rectangle and perform clipping against the existing rectangles.
• Press ESC to clear all rectangles.
• Press SPACE to switch rendering the borders of the rectangles.
• Press TAB to test for and debug overlapping pixels.
• Press the UP and DOWN arrow keys to adjust the 'pixel' size.
• Press the F10-F12 keys to change the rendering mode (F10=Pixel Buffer , F11=OpenGL Points, F12=Texture).

ExampleSound

Play and draw semi-random sound waves.

// (main.cpp)
#include "ExampleSound.h"

int main(int argc, char * argv[]) {
  return ExampleSound().run(argc, argv);
}

• Press ENTER to add a semi-random sine sound wave.
• Press SPACE to add a semi-random square sound wave.
• Press TAB to add a semi-random triangle sound wave.
• Press BACKSPACE to add a semi-random sawtooth sound wave.
• Press N to add some semi-random noise.
• Press ESC to clear all sound waves.
• Press the RIGHT and LEFT arrow keys to adjust the resolution of the rendered sound wave.
• Press the UP and DOWN arrow keys to adjust the 'pixel' size.
• Press the F10-F12 keys to change the rendering mode (F10=Pixel Buffer , F11=OpenGL Points, F12=Texture).

Requirements

On Linux, the following libraries or their substitutes need to be installed and linked against:

• OpenGL (libGL)
• GLFW (libglfw3)
• X11 (libX11)
• POSIX Threads (libpthread)
• libdl

For using Sound.h and Sound.cpp you additionally need:

• libsoundio (libsoundio)

Tested with g++ (Ubuntu 9.2.1-9ubuntu2) 9.2.1.