Fraqtive is an open source, multi-platform generator of the Mandelbrot family fractals. It uses very fast algorithms supporting SSE2 and multi-core processors. It generates high quality anti-aliased images and renders 3D scenes using OpenGL. It allows real-time navigation and dynamic generation of the Julia fractal preview.

Main features:

  • Highly optimized calculations taking advantage of the SSE2 extension and multi-core processors with a special optimization algorithm
  • Zoom in and out, move and rotate the fractal in real time with the image automatically updated
  • Animated preview of the Julia fractal corresponding to the point under the cursor is drawn as mouse is moved
  • A color smoothing algorithm and image postprocessing for best image quality
  • Ability to render the 3D surface of the fractal for even better visualization of the fractal structure

Learn more about Fraqtive · Download Fraqtive

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Fraqtive 0.4.8 released

Version 0.4.8 extends the capability of Fraqtive to generate very high quality images and series of images (animations). The new "Multi-Sampling" setting makes it possible to generate images using multiple samples per pixel (2x2, 4x4 or 8x8 samples). This greatly improves the quality of images, especially in the "noisy" areas.

Multi-sampling works by simply rendering a larger image and then scaling it down to the requested size. The maximum size of the resulting image depends on the multi-sampling setting. Without multi-sampling, the maximum size is 30720 x 17280 pixels (in the 64-bit version), while with maximum 8x8 multi-sampling, the maximum resolution is 3840 x 2160 pixels (commonly known as the 4K resolution).

This is an example of an animation rendered using Fraqtive, with 4x4 multi-sampling used together with anti-aliasing and blending:

There was also a bug in version 0.4.7 which caused Fraqtive to look for presets and bookmarks in the wrong location on Windows. This bug is now fixed in version 0.4.8.