nx_wasmvox3d.nx

buildroot/runtime/nx_wasmvox3d.nx

15497 B375 linesdepth 1pulls 1 transitivereach 1 importersview sourcekind tool

docs dependencies structs consts functions

about

nx_wasmvox3d.nx -- TRUE 3D VOXEL world (per-voxel faces, not column boxes) so you can dig holes/tunnels and stack blocks. Base-relative (same code runs native->PNG and wasm->browser). The world = a natural heightmap PLUS a 2-bit-packed 3D edit grid (0=default, 1=placed-solid, 2=dug-air). Render draws only EXPOSED faces of solid voxels (face to an air neighbor) -> tunnels/overhangs/floating blocks all work. Scoped small (48x48x18, 192x144) for software-raster speed. Reuses the proven f32 + raster math. license_tier: ORIGINAL

dependencies 1 imports · 1 importers

imports: nx_f32_hw.nx

imported by: nx_wasmvox3d_gate.nx

structs

none

consts

7	const O_MAGIC_65536: i64 = 65536
9	const W: i64 = 192
10	const H: i64 = 144
11	const HW: i64 = 96
12	const HH: i64 = 72
13	const ZFAR: i64 = 1073741824
14	const FOCAL: i64 = 150
15	const WN: i64 = 48
16	const YMAX: i64 = 18
17	const WSEED: i64 = 7
18	const WWATER: i64 = 3
19	const WMAXH: i64 = 12
20	const WLAT: i64 = 6
21	const VDIST: i64 = 14
23	const O_FB: i64 = 0
24	const O_ZB: i64 = 221184 // WH8
25	const O_R: i64 = 442368
26	const O_RY: i64 = 442496
27	const O_RX: i64 = 442624
28	const O_V: i64 = 442752
29	const O_RV: i64 = 442784
30	const O_SX: i64 = 442816
31	const O_SY: i64 = 442880
32	const O_SD: i64 = 442944
33	const O_SOK: i64 = 443008
34	const O_PJ: i64 = 443072
35	const O_HC: i64 = 443136 // per-column height cache, WN*WN i64
36	const O_GRID: i64 = 461568 // 2-bit 3D edit grid: WNWNYMAX cells / 32 per i64

functions

38	func imin(a: i64, b: i64) -> i64 { if a < b { return a } return b } called by 2: min3 fill_z
39	func imax(a: i64, b: i64) -> i64 { if a > b { return a } return b } called by 2: max3 fill_z
40	func min3(a: i64, b: i64, c: i64) -> i64 { return imin(a, imin(b, c)) } called by 1: fill_z calls 1: imin
41	func max3(a: i64, b: i64, c: i64) -> i64 { return imax(a, imax(b, c)) } called by 1: fill_z calls 1: imax
42	func clamp255(v: i64) -> i64 { if v < 0 { return 0 } if v > 255 { return 255 } return v } called by 1: shade
43	func fratio(num: i64, den: i64) -> i64 { return f32_div(f32_of(num), f32_of(den)) } called by 1: build_R calls 2: f32_div f32_of
45	func wlat(ix: i64, iz: i64) -> i64 called by 1: terrain_h0
51	func terrain_h0(gx: i64, gz: i64) -> i64 called by 6: solid_h has_tree draw_tree render_at terrain_at main calls 1: wlat
70	func grid_idx(gx: i64, gy: i64, gz: i64) -> i64 { return (gy * WN + gz) * WN + gx } called by 2: getcell setcell
71	func getcell(base: i64, gx: i64, gy: i64, gz: i64) -> i64 called by 1: solid_h calls 1: grid_idx
76	func setcell(base: i64, gx: i64, gy: i64, gz: i64, v: i64) -> i64 called by 3: break_at place_at main calls 1: grid_idx
85	func solid_h(base: i64, gx: i64, gy: i64, gz: i64, hcol: i64) -> i64 called by 1: solid calls 2: getcell terrain_h0
100	func solid(base: i64, gx: i64, gy: i64, gz: i64) -> i64 called by 4: draw_voxel render_at surface_y raycast calls 1: solid_h
108	func voxel_color(gy: i64, top: i64) -> i64 called by 1: draw_voxel
118	func shade(lnx: i64, lny: i64, lnz: i64) -> i64 called by 1: face calls 1: clamp255
123	func packc(col: i64, bright: i64) -> i64 called by 1: face
129	func fill_z(base: i64, x0: i64, y0: i64, d0: i64, x1: i64, y1: i64, d1: i64, x2: i64, y2: i64, d2: i64, col: i64) -> i64 called by 1: face calls 4: imax min3 imin max3
159	func project(base: i64, camx: i64, camy: i64, camz: i64, iwx: i64, iwy: i64, iwz: i64) -> i64 called by 2: corners corners_sz calls 6: f32_sub f32_of m4_vec4 f32_int f32_mul f32_div
179	func corners(base: i64, camx: i64, camy: i64, camz: i64, x0: i64, y0: i64, z0: i64) -> i64 called by 1: draw_voxel calls 1: project
193	func face(base: i64, a: i64, b: i64, c: i64, dd: i64, lnx: i64, lny: i64, lnz: i64, col: i64) -> i64 called by 2: draw_voxel draw_solidbox calls 3: packc shade fill_z
208	func draw_voxel(base: i64, camx: i64, camy: i64, camz: i64, gx: i64, gy: i64, gz: i64) -> i64 called by 1: render_at calls 4: solid voxel_color corners face
220	func corners_sz(base: i64, camx: i64, camy: i64, camz: i64, x0: i64, y0: i64, z0: i64, sw: i64, sh: i64, sl: i64) -> i64 called by 1: draw_solidbox calls 1: project
234	func draw_solidbox(base: i64, camx: i64, camy: i64, camz: i64, x0: i64, y0: i64, z0: i64, sw: i64, sh: i64, sl: i64, col: i64) -> i64 called by 1: draw_tree calls 2: corners_sz face
243	func has_tree(gx: i64, gz: i64) -> i64 called by 1: render_at calls 1: terrain_h0
252	func draw_tree(base: i64, camx: i64, camy: i64, camz: i64, gx: i64, gz: i64) -> i64 called by 1: render_at calls 2: terrain_h0 draw_solidbox
258	func render_at(base: i64, camx: i64, camy: i64, camz: i64, cgx: i64, cgz: i64) -> i64 called by 2: render main calls 5: terrain_h0 solid draw_voxel has_tree draw_tree
301	func build_R(base: i64, ycos: i64, ysin: i64, pcos: i64, psin: i64) -> i64 called by 2: render main calls 5: m4_roty fratio m4_rotx f32_neg m4_mul
310	func mem_bytes() -> i64 { return O_GRID + (WN * WN * YMAX / 32 + 4) * 8 } called by 1: main
312	func surface_y(base: i64, gx: i64, gz: i64) -> i64 called by 1: terrain_at calls 1: solid
319	func raycast(base: i64, camx256: i64, camy256: i64, camz256: i64, dx1000: i64, dy1000: i64, dz1000: i64, out: *i64) -> i64 called by 2: break_at place_at calls 1: solid
345	func render(camx256: i64, camy256: i64, camz256: i64, ycos: i64, ysin: i64, pcos: i64, psin: i64) -> i64 calls 4: build_R f32_div f32_of render_at
353	func terrain_at(gx: i64, gz: i64) -> i64 calls 2: terrain_h0 surface_y
359	func break_at(camx256: i64, camy256: i64, camz256: i64, dx1000: i64, dy1000: i64, dz1000: i64) -> i64 calls 2: raycast setcell
366	func place_at(camx256: i64, camy256: i64, camz256: i64, dx1000: i64, dy1000: i64, dz1000: i64) -> i64 calls 2: raycast setcell
372	func fb_off() -> i64 { return O_FB } called by 1: main
373	func ww() -> i64 { return W } called by 1: main
374	func hh() -> i64 { return H } called by 1: main
375	func main() -> i64 { return 0 }