@Darkbeam:
In my previous reply, I was (indirectly) asking for a hollow (inverted) BoxIFS shape to be used in difs. Possible?
Already tried to set a negative scale? Should work.
Mandelbulb3Dv18{
b.....S....O/.../....2....U4nrZayiC4.T2j7duEiR3EjTrp9NG6..IZ9wuVcuUyzSDBIhxqivzD
................................9BGHRY2MTz1........A./..................y.2...wD
...Uz.....U3..../M.0/.....EP....8.....E3.....oASKrbaH8sD/..........m/dkpXmn/...U
z.....kD12../..........wz..................................u1....y1...sD...../..
.z1...sD4krzSz2y.yXbzXFWWVrMzcnr3E5OTQqj09BuTZraXuXN.yAVGe4Tzkt0xUOGjTrDxOxqS2bC
ixXcZUmHCqRRzmE1i..FpbrD......o...............sD.6....sD..E.....................
.............oAnAt1...sD....z.rbv4.2UiP.k0ui/.Jcv4.wViP.E8ui/.ncv4....../....k1.
..................kz.wzzz1.U..6.P....U5...EB....m....c3....F....6/...I1.....SF52
...U.qFG9yzb2zzzRYoWzz7lz16.pc..zXCc..kvrEtMc7xD4ocyFE0ujz1..........2.28.kFrA0.
.Ub96aAIVz9.1se7Umvxz0........../EU0.wzzz1...........s/...................E.2c..
zzzz.............0...................2./8.kzzzD............8....................
/EU0.wzzz1...................................2CcN/UvNPcveeWCNq0.yRiibHJJUk1f..XR
SvBmx3CcN/UvNPcvQsLsUa3.ibhVi1bTV1OK.sSq4uCly3CcN/UvNPcvMwLsUa3.ibhVinqTV1OK.sSq
4uCkz3CcN/UvNPcv..EsUa3feeWCNqGQIJ36wk8EwyLsUa3f................................
E....2....E.....I....o....UMjVLG4B3.U.pPrJaQ.............................sU1....
/6U./2.............wz.........zD........kznAnAnAnAnoz0..........................
...................................wz...................kz1........wz...........
........................}
then
Mandelbulb3Dv18{
b.....S....O/...w....2....kMmjRzUzhtzmacJEAI300Eu.d9Rg75AzfTCqqvSi0pzI/HiDLdQ9xj
................................FbGbNwM1X.2........Y./........2E.......UK/2...wD
...Uz.....k2..../M.0/.....Um....g.....E3.....wVoUHsQLunD/..........m/dkpXm1....U
z.....kD12../..........wz..................................u1....y1...sD...../..
.z1...sDlzoX1JXwvwXI4awSRf77z0idq3JRfjljhViBHzzjYt13mR/3eRGAzeJ1eTwLIZnDULw3Aers
cwf/E74F3DmBzWfXFs2sKxmj......25..............sD.6....sD..E.....................
.............oAnAt1...sD......rbv4.2UiP.k0ui/.Jcv4.wViP.E8ui/.ncv4......B....2..
..................kz.wzzz1.U..6.P....U5...EB....m....c3....F....6/...I1.....SF52
...U.qFG9yzb2zzzRYoWzz7lz16.pc..zXCc..kvrEtMc7xD4ocyFE0ujz1..........2.28.kFrA0.
.Ub96aAIVz9.1se7Umvxz0........../EU0.wzzz1...........s/...................E.2c..
zzzz.............0...................2./8.kzzzD............8....................
/EU0.wzzz1...................................2CcN/UvNPcveeWCNq0.yRiibHJJUk1f..XR
SvBmx3CcN/UvNPcvQsLsUa3.ibhVi1bTV1OK.sSq4uCly3CcN/UvNPcvMwLsUa3.ibhVinqTV1OK.sSq
4uCkz3CcN/UvNPcv..EsUa3feeWCNqGQIJ36wk8EwyLsUa3f................................
E6../6....E.....I....o....UMjVLG4B3.U.pPrJaQ.............................sU1....
/6U./2.............wz.........zD........kzH6yM6W6W6xz0..........................
...................................wz...................kz1........wz...........
.....................2.....3....5....oINiRKNmZYFH/..............................
.....MU/4....................U.E........kz1........wz.........yD................
................................................................................
................................}