Mandelbulb 3D - color-mapping question ("Fabergè Experiment")

[m2001]

i try to build a "fabergè" similar setup.

famous example:
http://www.visualnews.com/2013/06/23/faberge-fractals-by-tom-beddard/


Basic Formula is Sierpinski.

Color Mapping target:
- surface blue
- "inside" white (later silver/gold


Mapping Setup:
- Map on output vector

and for sierpinski object it's ok, BUT

The floor (shadow caster) gets the color (blue fragments) also and should be white/grey only

What i've tried - but no success:
- different floor objects (heightmapIFS, boxIFS, roomdoorIFS)
-> also rotated, translated ...
- exchange the hybrid form order (first floor (IFS), second sierpinski and inversely)


Any help / link?



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[m2001]

if anybody want´s to use ... the colored setup without floor

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