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render3d: 671 frame-reachable allocation sites to 161 - declared, split, or made nothing

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@alloc_ok with its reason on what is made once per resource and kept (textures, programs, samplers,
views, layouts, memory blocks, the pipeline cache in gvk_pipe_build), on resize and swapchain
remakes, on screenshots and dumps, on a world being set up (streams, layers, water, post, bakes), on
loads (gltf_load, skin_load, tex_load*, png_decode, fonts) and on R3D_PROF / drawstats.
gltf_cached's hit path is its own and makes nothing; the miss (gltf_cached_load) is declared.
m4_look_at (now over m4_look_at_xyz) and m4_inverse work on scalars, and cam_update makes no scratch.
Left: lazy first-use starts, error and debug prints, and scratch made and freed each call (churn,
plan 25.3). Compiled (steady, and ludic deps over the game).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-28 15:58:18 +03:00
parent f2dd27f443
commit 5d0f83b81c
21 changed files with 118 additions and 42 deletions
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78
packages/ludic.render3d/fmath.ludic
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@ -157,45 +157,55 @@ function m4_ortho(m: floats, l: float, r: float, b: float, t: float, n: float, f
m[14] = -((f + n) / (f - n))
}
function m4_look_at(m: floats, eye: floats, at: floats, up: floats) -> void {
let fwd = floats(3); let side = floats(3); let u = floats(3); let t = floats(3)
v3_sub(t, at, eye)
v3_normalize(fwd, t)
v3_cross(t, fwd, up)
v3_normalize(side, t)
v3_cross(u, side, fwd)
m4_look_at_xyz(m, eye[0], eye[1], eye[2], at[0], at[1], at[2], up[0], up[1], up[2])
}
# the same from nine numbers, on scalars: the camera asks it every frame, and four scratch vectors
# made and freed per call were churn
function m4_look_at_xyz(m: floats, ex: float, ey: float, ez: float, ax: float, ay: float, az: float, ux: float, uy: float, uz: float) -> void {
var fx = ax - ex
var fy = ay - ey
var fz = az - ez
var fl = Math.sqrt(fx * fx + fy * fy + fz * fz)
if fl > 0.0 { fx = fx / fl; fy = fy / fl; fz = fz / fl }
var sx = fy * uz - fz * uy
var sy = fz * ux - fx * uz
var sz = fx * uy - fy * ux
let sl = Math.sqrt(sx * sx + sy * sy + sz * sz)
if sl > 0.0 { sx = sx / sl; sy = sy / sl; sz = sz / sl }
let vx = sy * fz - sz * fy
let vy = sz * fx - sx * fz
let vz = sx * fy - sy * fx
m4_identity(m)
m[0] = side[0]; m[4] = side[1]; m[8] = side[2]
m[1] = u[0]; m[5] = u[1]; m[9] = u[2]
m[2] = -fwd[0]; m[6] = -fwd[1]; m[10] = -fwd[2]
m[12] = -v3_dot(side, eye)
m[13] = -v3_dot(u, eye)
m[14] = v3_dot(fwd, eye)
free(fwd); free(side); free(u); free(t)
m[0] = sx; m[4] = sy; m[8] = sz
m[1] = vx; m[5] = vy; m[9] = vz
m[2] = -fx; m[6] = -fy; m[10] = -fz
m[12] = -(sx * ex + sy * ey + sz * ez)
m[13] = -(vx * ex + vy * ey + vz * ez)
m[14] = fx * ex + fy * ey + fz * ez
}
# general 4x4 inverse (cofactor expansion); o may not alias a
function m4_inverse(o: floats, a: floats) -> bool {
let inv = floats(16)
inv[0] = a[5] * (a[10] * a[15]) + -(a[5] * (a[11] * a[14])) - a[9] * (a[6] * a[15]) + (a[9] * (a[7] * a[14]) + (a[13] * (a[6] * a[11]) - a[13] * (a[7] * a[10])))
inv[4] = -(a[4] * (a[10] * a[15])) + a[4] * (a[11] * a[14]) - a[8] * (a[7] * a[14]) + (a[8] * (a[6] * a[15]) + (a[12] * (a[7] * a[10]) - a[12] * (a[6] * a[11])))
inv[8] = a[4] * (a[9] * a[15]) + -(a[4] * (a[11] * a[13])) - a[8] * (a[5] * a[15]) + (a[8] * (a[7] * a[13]) + (a[12] * (a[5] * a[11]) - a[12] * (a[7] * a[9])))
inv[12] = -(a[4] * (a[9] * a[14])) + a[4] * (a[10] * a[13]) - a[8] * (a[6] * a[13]) + (a[8] * (a[5] * a[14]) + (a[12] * (a[6] * a[9]) - a[12] * (a[5] * a[10])))
inv[1] = -(a[1] * (a[10] * a[15])) + a[1] * (a[11] * a[14]) - a[9] * (a[3] * a[14]) + (a[9] * (a[2] * a[15]) + (a[13] * (a[3] * a[10]) - a[13] * (a[2] * a[11])))
inv[5] = a[0] * (a[10] * a[15]) + -(a[0] * (a[11] * a[14])) - a[8] * (a[2] * a[15]) + (a[8] * (a[3] * a[14]) + (a[12] * (a[2] * a[11]) - a[12] * (a[3] * a[10])))
inv[9] = -(a[0] * (a[9] * a[15])) + a[0] * (a[11] * a[13]) - a[8] * (a[3] * a[13]) + (a[8] * (a[1] * a[15]) + (a[12] * (a[3] * a[9]) - a[12] * (a[1] * a[11])))
inv[13] = a[0] * (a[9] * a[14]) + -(a[0] * (a[10] * a[13])) - a[8] * (a[1] * a[14]) + (a[8] * (a[2] * a[13]) + (a[12] * (a[1] * a[10]) - a[12] * (a[2] * a[9])))
inv[2] = a[1] * (a[6] * a[15]) + -(a[1] * (a[7] * a[14])) - a[5] * (a[2] * a[15]) + (a[5] * (a[3] * a[14]) + (a[13] * (a[2] * a[7]) - a[13] * (a[3] * a[6])))
inv[6] = -(a[0] * (a[6] * a[15])) + a[0] * (a[7] * a[14]) - a[4] * (a[3] * a[14]) + (a[4] * (a[2] * a[15]) + (a[12] * (a[3] * a[6]) - a[12] * (a[2] * a[7])))
inv[10] = a[0] * (a[5] * a[15]) + -(a[0] * (a[7] * a[13])) - a[4] * (a[1] * a[15]) + (a[4] * (a[3] * a[13]) + (a[12] * (a[1] * a[7]) - a[12] * (a[3] * a[5])))
inv[14] = -(a[0] * (a[5] * a[14])) + a[0] * (a[6] * a[13]) - a[4] * (a[2] * a[13]) + (a[4] * (a[1] * a[14]) + (a[12] * (a[2] * a[5]) - a[12] * (a[1] * a[6])))
inv[3] = -(a[1] * (a[6] * a[11])) + a[1] * (a[7] * a[10]) - a[5] * (a[3] * a[10]) + (a[5] * (a[2] * a[11]) + (a[9] * (a[3] * a[6]) - a[9] * (a[2] * a[7])))
inv[7] = a[0] * (a[6] * a[11]) + -(a[0] * (a[7] * a[10])) - a[4] * (a[2] * a[11]) + (a[4] * (a[3] * a[10]) + (a[8] * (a[2] * a[7]) - a[8] * (a[3] * a[6])))
inv[11] = -(a[0] * (a[5] * a[11])) + a[0] * (a[7] * a[9]) - a[4] * (a[3] * a[9]) + (a[4] * (a[1] * a[11]) + (a[8] * (a[3] * a[5]) - a[8] * (a[1] * a[7])))
inv[15] = a[0] * (a[5] * a[10]) + -(a[0] * (a[6] * a[9])) - a[4] * (a[1] * a[10]) + (a[4] * (a[2] * a[9]) + (a[8] * (a[1] * a[6]) - a[8] * (a[2] * a[5])))
let det = a[0] * inv[0] + a[1] * inv[4] + (a[2] * inv[8] + a[3] * inv[12])
if det == 0.0 { free(inv); return false }
let i0 = a[5] * (a[10] * a[15]) + -(a[5] * (a[11] * a[14])) - a[9] * (a[6] * a[15]) + (a[9] * (a[7] * a[14]) + (a[13] * (a[6] * a[11]) - a[13] * (a[7] * a[10])))
let i4 = -(a[4] * (a[10] * a[15])) + a[4] * (a[11] * a[14]) - a[8] * (a[7] * a[14]) + (a[8] * (a[6] * a[15]) + (a[12] * (a[7] * a[10]) - a[12] * (a[6] * a[11])))
let i8 = a[4] * (a[9] * a[15]) + -(a[4] * (a[11] * a[13])) - a[8] * (a[5] * a[15]) + (a[8] * (a[7] * a[13]) + (a[12] * (a[5] * a[11]) - a[12] * (a[7] * a[9])))
let i12 = -(a[4] * (a[9] * a[14])) + a[4] * (a[10] * a[13]) - a[8] * (a[6] * a[13]) + (a[8] * (a[5] * a[14]) + (a[12] * (a[6] * a[9]) - a[12] * (a[5] * a[10])))
let i1 = -(a[1] * (a[10] * a[15])) + a[1] * (a[11] * a[14]) - a[9] * (a[3] * a[14]) + (a[9] * (a[2] * a[15]) + (a[13] * (a[3] * a[10]) - a[13] * (a[2] * a[11])))
let i5 = a[0] * (a[10] * a[15]) + -(a[0] * (a[11] * a[14])) - a[8] * (a[2] * a[15]) + (a[8] * (a[3] * a[14]) + (a[12] * (a[2] * a[11]) - a[12] * (a[3] * a[10])))
let i9 = -(a[0] * (a[9] * a[15])) + a[0] * (a[11] * a[13]) - a[8] * (a[3] * a[13]) + (a[8] * (a[1] * a[15]) + (a[12] * (a[3] * a[9]) - a[12] * (a[1] * a[11])))
let i13 = a[0] * (a[9] * a[14]) + -(a[0] * (a[10] * a[13])) - a[8] * (a[1] * a[14]) + (a[8] * (a[2] * a[13]) + (a[12] * (a[1] * a[10]) - a[12] * (a[2] * a[9])))
let i2 = a[1] * (a[6] * a[15]) + -(a[1] * (a[7] * a[14])) - a[5] * (a[2] * a[15]) + (a[5] * (a[3] * a[14]) + (a[13] * (a[2] * a[7]) - a[13] * (a[3] * a[6])))
let i6 = -(a[0] * (a[6] * a[15])) + a[0] * (a[7] * a[14]) - a[4] * (a[3] * a[14]) + (a[4] * (a[2] * a[15]) + (a[12] * (a[3] * a[6]) - a[12] * (a[2] * a[7])))
let i10 = a[0] * (a[5] * a[15]) + -(a[0] * (a[7] * a[13])) - a[4] * (a[1] * a[15]) + (a[4] * (a[3] * a[13]) + (a[12] * (a[1] * a[7]) - a[12] * (a[3] * a[5])))
let i14 = -(a[0] * (a[5] * a[14])) + a[0] * (a[6] * a[13]) - a[4] * (a[2] * a[13]) + (a[4] * (a[1] * a[14]) + (a[12] * (a[2] * a[5]) - a[12] * (a[1] * a[6])))
let i3 = -(a[1] * (a[6] * a[11])) + a[1] * (a[7] * a[10]) - a[5] * (a[3] * a[10]) + (a[5] * (a[2] * a[11]) + (a[9] * (a[3] * a[6]) - a[9] * (a[2] * a[7])))
let i7 = a[0] * (a[6] * a[11]) + -(a[0] * (a[7] * a[10])) - a[4] * (a[2] * a[11]) + (a[4] * (a[3] * a[10]) + (a[8] * (a[2] * a[7]) - a[8] * (a[3] * a[6])))
let i11 = -(a[0] * (a[5] * a[11])) + a[0] * (a[7] * a[9]) - a[4] * (a[3] * a[9]) + (a[4] * (a[1] * a[11]) + (a[8] * (a[3] * a[5]) - a[8] * (a[1] * a[7])))
let i15 = a[0] * (a[5] * a[10]) + -(a[0] * (a[6] * a[9])) - a[4] * (a[1] * a[10]) + (a[4] * (a[2] * a[9]) + (a[8] * (a[1] * a[6]) - a[8] * (a[2] * a[5])))
let det = a[0] * i0 + a[1] * i4 + (a[2] * i8 + a[3] * i12)
if det == 0.0 { return false }
let id = 1.0 / det
for i in 0 .. 16 { o[i] = inv[i] * id }
free(inv)
o[0] = i0 * id; o[1] = i1 * id; o[2] = i2 * id; o[3] = i3 * id; o[4] = i4 * id; o[5] = i5 * id; o[6] = i6 * id; o[7] = i7 * id
o[8] = i8 * id; o[9] = i9 * id; o[10] = i10 * id; o[11] = i11 * id; o[12] = i12 * id; o[13] = i13 * id; o[14] = i14 * id; o[15] = i15 * id
return true
}
# transform a point (w = 1) by m: o = m * (x, y, z, 1), returns w