code wiki / _hdl_build / nx_skin_gate.nx

nx_skin_gate.nx

buildroot/runtime/_hdl_build/nx_skin_gate.nx

4986 B78 linesdepth 2pulls 4 transitivereach 0 importersview sourcekind gate/prooftopic skin

docs dependencies structs consts functions

about

nx_skin_gate.nx -- GATE for CAP-SKELETAL-ANIM rung-1 (linear blend skinning, mr_skin2 over nx_render_core). Proves with HARD numbers: (T1) full-weight identity bone leaves the vertex EXACTLY at rest, (T2) a 90deg bone rotation moves (1,0,0)->(0,0,-1) exactly, (T3) a 50/50 blend of two bones lands at the MIDPOINT, (T4) a 25/75 blend lands proportionally (weights are real, not hardcoded), (T5) skinning actually MOVES the vertex, (T6 teeth) zero weights => origin (weights gate the contribution; no hallucinated position). All Q14 no-float. expect_exit: 0

dependencies 3 imports · 0 importers

imports: nx_syscalls.nxnx_render_core.nxnx_meshrender.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 g_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 2: ck main calls 1: sys_write
11	func g_pn(v: i64) -> i64 { let b: *u8=sys_mmap(28); var x: i64=v; if x<0{b[0]=45 as u8;sys_write(1,b,1);x=0-x} if x==0{b[0]=48 as u8;sys_write(1,b,1);return 0} var d: i64=0; var y: i64=x; while y>0{d=d+1;y=y/10} var i: i64=d-1; y=x; while i>=0{b[i]=(48+(y%10)) as u8;y=y/10;i=i-1} sys_write(1,b,d); return 0 } called by 1: main calls 2: sys_mmap sys_write
12	func ck(name: u8, c: i64) -> i64 { if c==1 { g_puts(" PASS " as u8) } else { g_puts(" FAIL " as u8) } g_puts(name); g_puts("\n" as u8); return c } called by 1: main calls 1: g_puts
13	func setrest(r: *i64, x: i64, y: i64, z: i64) -> i64 { r[0]=x; r[1]=y; r[2]=z; r[3]=16384; return 0 } called by 1: main
15	func main() -> i64 calls 13: g_puts sys_mmap rc_identity_4x4 mr_roty rc_translation_4x4 setrest+7