code wiki / _hdl_build / nx_isosurf_gate.nx

nx_isosurf_gate.nx

buildroot/runtime/_hdl_build/nx_isosurf_gate.nx

7394 B129 linesdepth 4pulls 8 transitivereach 0 importersview sourcekind gate/proof
docsdependenciesstructsconstsfunctions

about

nx_isosurf_gate.nx -- ★F0 UNIFY: polygonize a signed-distance FIELD into a real TRIANGLE MESH (surface nets), then MESH THE BEING (operator: build logically up the foundation ladder -> unify implicit+explicit + real geometry, not blobs). T1 polygonize a known SPHERE SDF -> mesh (tris, watertight-ish, renders round + SMOOTH via SDF-gradient normals). T2 ★polygonize the holistic BEING's skin SDF -> a real triangle mesh; render it SMOOTH (Gouraud). The ellipsoid blob is now genuine triangle geometry on the unified pipeline. T3 determinism. T4 gallery -> knowledge/nx_isosurf.png. license_tier: ORIGINAL expect_exit: 0

dependencies 5 imports · 0 importers

nx_syscalls.nx nx_png.nx nx_trimesh.nx nx_isosurf.nx nx_bodyatlas.nx nx_isosurf_gate.nx

imports: nx_syscalls.nxnx_png.nxnx_trimesh.nxnx_isosurf.nxnx_bodyatlas.nx

imported by: nobody (leaf or entry point)

call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown

main hw sys_write sys_mmap isq tm_reset sys_mmap ↻ surface_nets sys_mmap ↻ iso_isqrt tm_vert_n tm_quad tm_tri tm_nt tm_nv clearfb trimesh_zclear trimesh_render it_cos4096 it_sin4096 it_sin4096 ↻ tm_isqrt sys_mmap ↻ tm_min3 tm_min tm_max3 tm_max tm_shadow_at tm_noise3 tm_hash3 filled facetedges pn sys_mmap ↻ sys_write ↻ atlas_build ba_add sys_mmap ↻ ba_axis_x ba_ax_defaults

structs

none

consts

24const BG: i64 = 24 + 26*256 + 34*65536
25const W: i64 = 300
26const H: i64 = 460

functions

13func hw(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 calls 1: sys_write
14func 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 calls 2: sys_mmapsys_write
15func clearfb(fb: *i64, n: i64, c: i64) -> i64 { var i: i64=0; while i<n { fb[i]=c; i=i+1 } return 0 }
called by 1: main
16func filled(fb: *i64, n: i64, bg: i64) -> i64 { var c: i64=0; var i: i64=0; while i<n { if fb[i]!=bg { c=c+1 } i=i+1 } return c }
called by 1: main
17func isq(v: i64) -> i64 { if v<=0 {return 0} var x: i64=v; var y: i64=(x+1)/2; while y<x {x=y;y=(x+v/x)/2} return x }
called by 1: main
18func facetedges(fb: *i64, W: i64, H: i64, bg: i64) -> i64
called by 1: main
28func main() -> i64
calls 19: hwsys_mmapisqtm_resetsurface_netstm_nt+13