grass on geometry - Mandelbulb3D with Parameter

setup
Fo. 1: SphereHMVoid
with the "grass" map

Fo. 2: SphereHMVoid
with any other heightmap for the "ground"/geometry

Fo. 3: amazingIFS
to copy/transform Fo 1+2

Spheres from Fo. 1 and 2 are in different positions, so that the grass looks out of the geometry.

Mandelbulb3Dv18{
g....Uv0...i9...4....2....k6/gJoE/e6.z6p25OvJL7E.paYqOLbtzvDuaPYY3T6.ZF5VnU.h60k
................................7o0E/zj4o.2........A.dP1........BnAnAnAHB/2...wD
...Uz6........../Q.0/....2U5/...t.....Ej.....ocqn6wjB8kD/QUi1q9Eyy151dkpXm1....q
.3....kD12..2..........wz.................................U0.....y1...sD...../..
.z1...sD7uumhJjnZwn1U4JDuP26zG.SdPaPFRkjHklJxQZZ7wfuf0uDR/36za0D52v/TKmDTbHVB9/2
UwvZPE6ZUGn5zyHCJdlP40mjU.....Ip0...l1........kD.6....sD..G.....................
.............oAnAt1...sD....zw1...................................Ui1q9E4....k1.
.....Ksulz1.......kz.UjtjmkV..E.F0...s2...EK....D2...YA...U4....n....c4.....SJD/
Sc3U.0Ak.zDk.1wzzzzzzzzzz53.3IozzXCc...osMgdlHzj6sTza3whyzH..........2.28.kFrA0.
.Ub96aAIVz9.1se7UmvxzC........../EU0.wzzz1...........s/........./.........E.2c..
zzzz.............0...................2./8.kzzzD...........UC....................
/EU0.wzzz1...................................U5Ss/....kzW/.SsV5.....zLO/7/rE.wnD
z.kKVY2Q1/kDzw1.58GGkB2.zwnD.US77/rE.wnDz.k1eY2Q1/kDzw1.r0HGkB2.zwnD.E6E7/rE.wnD
z..2.a2Q1/kDzw1....cU08czz/cU08cyz1cU08cxz3cU08c.EaQic4Qb/U9e/rN................
E....AU.V2E.....I...../...kIkVKNmJ4GBNpPdF4..........................6U./2E./2E.
GMU/46E./........O8k./..........OaNaNaNaFz1........ozcNaNaNaNauD........kz1.....
...wzMaNaNaNaNxD........kz1........................................wz...........
........kz1..........2.....3....E....A3QcJaQZVIHKxKOY/..........................
06E./2E./2U24MU/02E.........55AE................................BnAnAnAnYz1.....
...wz.........zDaNaNaNaNKz1........wz.......Uq1E..............................zD
...................wz...........2....E/...U0....VpKMuZaPbZYFH/..................
..............U/4M...................................oAnAnAnA1yD........yz9.....
.kQ7./..................kz1........wz.........zD........z.2.....................
............................................}


Grass Map:
drive.google.com/file/d/0B7zs_…