A fractal generator with various options for mandelbrot-, julia- and newton-sets. And a improved rendering with antialiasing.
The usual autotool procedure should work (but optimisation is recommended):
autoreconf -fis ./configure --prefix=/usr make CXXFLAGS="-mtune=native -march=native -O3" ./src/fract
All options are shown in a context menu with the right mouse button.
To zoom just press the left mouse button and drag a rectangle for the next view.