More realistic fog effect available in Mandelbulber

More realistic fog effect available in Mandelbulber

Krzysztof Marczak continues his work on bringing even more fun to Mandelbulber, a free app for rendering 3D fractals. The newly released v1.11 features a more realistic fog effect.

The new feature is activated on the Shaders tab. The point of iteration fog is that its density depends on iteration count (optionally hardware accelerated). This kind of fog makes renderings more realistic, because it casts shadows on fractal surfaces and on itself.

What it accounts to is making pictures prettier. Say, you take a very boring fractal surface:

No fog in Mandelbulber

And wrap it up in the iteration fog:

Iterated fog in Mandelbulber

Don't forget to enable Shadows checkbox on the Shaders tab as well.

Iteration fog can also be illuminated by auxiliary lights and ambient occlusion. Here is an example from the developer himself:

Another example of iteration fog

Latest version of the application got even more features ported to OpenCL, namely: ambient occlusion effect, coloring algorithms, Quaternion and Xonodreambuie formulas, volumetric fog effect.

Krzysztof also posted some results of rendering comparison between GPU and CPU versions. 

For a Mandelbulb formula results are:

CPU - 27.3s
GPU - 1.07s

For a Mandelbox formula results are:

CPU - 43s
GPU - 4.69s

As usual, Mandelbulber is available for Linux, Windows and Mac.

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