Mandelbulber v2 2.12 - alpha4 - OpenCL

This is next alpha release of Mandelbulber v2 with OpenCL rendering engine.
OpenCL code is still not finished and has many bugs, but actual rendering results are much more comparable with that we can get using code running on CPU.
Purpose of this release is to give you the program in actual state for testing (and get feedback for us) and have opportunity to enjoy rendering using fast GFX cards.

To use new features, you need to enable them by selecting "limited" engine in menu File / Preferences and OpenCL tab / mode

What was added since latest alpha release:

• Screen Space Ambient Occlusion (SSAO post effect)
• Ambient occlusion based on multiple colored rays
• Auxiliary light sources
• Basic fog
• Fog based on distance
• Glow
• Visible auxiliary lights
• Volumetric lights (God Rays effect)
• Added Jos-Kleinian fractal formula

This is an example what is possible with actual OpenCL code.