F
1
3
LD
GRAIN
⬡ Open in F13LD.mesh
v0.9.1
X
Y
Z
Ready
field
ready
shader
ready
Low
Med
High
Ultra
· mobile
field type
Spinodoid (VMF wave superposition)
Gaussian random field (spectral)
Hyperuniform kernel field
Reaction-diffusion
bandwidth σ
0.45
Low σ → near-periodic cells · High σ → broad irregular foam
aspect ratio
4.0
Kernel length/width — 1=spherical · 4–8=beam-like · 10+=rod-like
kernel width
0.040
N kernels
30
lock feature scale
⚠ N>200 may be slow to bake — use Section 2D for high-N exploration.
kernel shape
cross-section
2.00
1 diamond · 2 round · 6+ square-section
edge sharpness
1.00
1 soft taper · higher = flat-top, uniform thickness
union blend
1.00
1.0 merged · 8.0 distinct struts
transverse aspect
round
0 round · either side = ribbon/plate cross-section
system
Gray-Scott — bicontinuous labyrinth
Brusselator — lamellar / cortical
Schnakenberg — closed-cell spheres
⚠ Brusselator / Schnakenberg require desktop browser — falling back to Gray-Scott.
preset
Micro — very fine, high surface area
Fine — small trabecular features
Reticulate — dense interconnected network
Trabecular — classic spongy bone
Lamellar — plate-like cortical character
Cancellous — open marrow spaces
Custom
feature scale
0.14
inhibitor D
v
16.0
feed rate F
0.030
kill rate k
0.057
tile factor
2
⚠ Exploring outside presets can produce surprising results — but may also produce nothing at all.
▶ Simulate
🎲 Roll & simulate
sim steps
3000
each +500 steps ≈ +0.5s · early steps = immature topology · late steps = equilibrated structure
directional bias
mode
Single
Orthotropic
Isotropic
dir θ (polar)
0°
dir φ (azimuth)
0°
Three principal axes X/Y/Z with independent concentration weights.
weight X
0.33
weight Y
0.33
weight Z
0.34
concentration κ
6.0
κ=0 isotropic foam · κ≈4–8 trabecular · κ≥12 aligned rods
N waves
48
frequency
0.45
RNG seed
42
scaffold geometry
topology
Sheet
Half-solid
Solid
◐
flip side
center
0.00
half-width
0.15
smoothing
0.00
homogenization (MIL-HS)
grid
32³
48³
64³
E_s (GPa)
ν
Run homogenization
directional stiffness
A =
—
—
axial
A=1
diagonal
stiffness ellipsoid
⚠ Statistical homogeneity assumed. Higher N waves and frequency improve convergence.
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