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nx_gx_sss_skin_gate.nx
buildroot/runtime/_hdl_build/nx_gx_sss_skin_gate.nx
about
nx_gx_sss_skin_gate.nx -- Gx/FIDELITY: subsurface-scattering (SSS) skin shading -- the #1 clay->flesh lever.
Two spheres, same skin albedo + same light, side by side: LEFT = clay (hard Lambert, plastic terminator),
RIGHT = SSS (spectral wrap diffusion: red light penetrates deepest so it wraps furthest past the terminator and
glows red there -- the flesh signature -- while blue stays shallow). Per-pixel, integer Q12, sovereign. HONEST:
this is the SSS SHADING MODEL (wrap + spectral reddening), a real fidelity rung; a single untextured sphere is
still NOT photoreal (no pores/texture/hair) -- the photoreal critic must still rank it below a real photo.
license_tier: ORIGINAL expect_exit: 0
dependencies 1 imports · 0 importers
imports: nx_png_write.nx
imported by: nobody (leaf or entry point)
call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown
structs
| none |
consts
| none |
functions
| 10 | func ss_puts(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(1,s,n); return 0 } called by 1: main |
| 11 | func ss_pn(v: i64) -> i64 { let b: *u8=sys_mmap(32) as *u8; var x: i64=v; var ng: i64=0; if x<0{ng=1;x=0-x} var i: i64=31; if x==0{b[i]=48 as u8;i=i-1} while x>0{b[i]=(48+x%10) as u8;x=x/10;i=i-1} if ng==1{b[i]=45 as u8;i=i-1} sys_write(1,(b as i64+i+1) as *u8,31-i); return 0 } called by 1: main |
| 12 | func ss_isqrt(n: i64) -> i64 { if n<=0 { return 0 } var x: i64=n; var y: i64=(x+n/x)/2; var it: i64=0; while it<64 { if y>=x { it=64 } else { x=y; y=(x+n/x)/2; it=it+1 } } return x } called by 1: main |
| 14 | func ss_wrap(ndl: i64, w: i64, Q: i64) -> i64 { var v: i64=((ndl+w)*Q)/(Q+w); if v<0{v=0} if v>Q{v=Q} return v } called by 1: main |
| 16 | func main() -> i64 |