When Jesse comes up with some new wonder function for MB3D I use to do some tests with the good old mandelbulb.
This time I put it half inside a Klein Bottle to try out the new transparency.
Thanks to "Water reMark JayBee"
for inspiring with his beautiful Encapsulation [link] ...and for the hint that the walls must be really thin to make them transparent, I spent a whole saturday on this and it almost drove me insane.
A view from the inside of the Klein Bottle here:

Mandelbulb 3D raw render.
This time I put it half inside a Klein Bottle to try out the new transparency.
Thanks to "Water reMark JayBee"
A view from the inside of the Klein Bottle here:

Mandelbulb 3D raw render.

:origin()/pre00/1e72/th/pre/f/2012/191/b/d/softly_klein_bottled_mandelbulb_by_mandelwerk-d56oryq.jpg)
I spent all weekend with this de combo...
Already tired of the transparency...
Thank you J!