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Decompile func_80033D44 (append transform frame) to C behind NON_MATCHING

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Builds an orthonormal frame from the p0->p1 direction (picking an up-vector via
D_8007C5B4, two cross products), stores a new StadiumTransform with its four
control points and matrix, then computes each vertex's projection weights.
Largest 33FE0 function (0x510). Bare GLOBAL_ASM: 43 -> 42.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
cristian
2026-07-05 10:53:12 -04:00
parent fffa9a8a05
commit fbc18d1fae
1 changed files with 102 additions and 0 deletions
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102
src/33FE0.c
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@@ -320,7 +320,109 @@ void func_80033D1C(StadiumModel* model, MtxF* mtx) {
#pragma GLOBAL_ASM("asm/us/nonmatchings/33FE0/func_80033D1C.s")
#endif
#ifdef NON_MATCHING
extern f32 D_8007C5B4;
// Append a StadiumTransform: build an orthonormal frame from p0->p1, store the
// four control points + matrix, then compute each vertex's projection weights.
void func_80033D44(StadiumModel* arg0, s16 arg1, f32 arg2, f32 arg3, f32 arg4, f32 arg5, f32 arg6, f32 arg7, f32 arg8, MtxF* arg9) {
ModelSegment* segment;
StadiumTransform* tf;
ModelVertex* vtx;
f32* w;
s16 idx;
s32 i;
f32 dx, dy, dz, len;
f32 ndx, ndy, ndz;
f32 ux, uy, uz;
f32 rx, ry, rz;
f32 p2x, p2y, p2z;
f32 p3x, p3y, p3z;
f32 c0x, c0y, c0z;
f32 c1x, c1y, c1z;
f32 c2x, c2y, c2z;
f32 c3x, c3y, c3z;
f32 vx, vy, vz;
f32 px, py, pz;
f32 dist;
idx = arg0->unk_02;
segment = (ModelSegment*) Memmap_GetSegmentVaddr(arg0->modelSegment);
arg0->unk_02 = idx + 1;
dx = arg6 - arg3;
dy = arg7 - arg4;
dz = arg8 - arg5;
len = sqrtf((dx * dx) + (dy * dy) + (dz * dz));
if (len != 0.0f) {
ndx = dx / len;
ndy = dy / len;
ndz = dz / len;
ux = -1.0f;
uy = 0.0f;
uz = 0.0f;
if (D_8007C5B4 < func_8003342C((ndx * -1.0f) + (ndy * 0.0f) + (ndz * 0.0f))) {
uy = 1.0f;
ux = 0.0f;
uz = 0.0f;
if (D_8007C5B4 < func_8003342C(ndy)) {
uz = 1.0f;
uy = 0.0f;
}
}
func_80033450(ndx, ndy, ndz, ux, uy, uz, &rx, &ry, &rz);
p2x = arg3 + rx;
p2y = arg4 + ry;
p2z = arg5 + rz;
func_80033450(ndx, ndy, ndz, rx, ry, rz, &rx, &ry, &rz);
p3x = arg3 + rx;
p3y = arg4 + ry;
p3z = arg5 + rz;
tf = &arg0->transforms[idx];
tf->unk_00 = arg1;
tf->maxDist = arg2;
tf->x0 = arg3;
tf->y0 = arg4;
tf->z0 = arg5;
tf->x1 = arg6;
tf->y1 = arg7;
tf->z1 = arg8;
tf->x2 = p2x;
tf->y2 = p2y;
tf->z2 = p2z;
tf->x3 = p3x;
tf->y3 = p3y;
tf->z3 = p3z;
tf->mtx = arg9;
guMtxXFMF((f32(*)[4]) arg9, arg3, arg4, arg5, &c0x, &c0y, &c0z);
guMtxXFMF((f32(*)[4]) arg9, arg6, arg7, arg8, &c1x, &c1y, &c1z);
guMtxXFMF((f32(*)[4]) arg9, p2x, p2y, p2z, &c2x, &c2y, &c2z);
guMtxXFMF((f32(*)[4]) arg9, p3x, p3y, p3z, &c3x, &c3y, &c3z);
vtx = &arg0->mvtx;
i = 0;
if (segment->vertexCount > 0) {
do {
vx = vtx->position.base.x;
vy = vtx->position.base.y;
vz = vtx->position.base.z;
dist = func_80033568(vx, vy, vz, c0x, c0y, c0z, c1x, c1y, c1z, &px, &py, &pz);
w = (f32*) ((u8*) vtx + (idx * 0x10) + 0x14);
if (dist > 0.0f) {
vx = (((vx - px) * arg2) / dist) + px;
vy = (((vy - py) * arg2) / dist) + py;
vz = (((vz - pz) * arg2) / dist) + pz;
}
w[0] = func_800334C0(vx, vy, vz, c0x, c0y, c0z, c1x, c1y, c1z);
w[1] = func_800334C0(vx, vy, vz, c0x, c0y, c0z, c2x, c2y, c2z);
w[2] = func_800334C0(vx, vy, vz, c0x, c0y, c0z, c3x, c3y, c3z);
w[3] = dist;
i += 1;
vtx += 1;
} while (i < segment->vertexCount);
}
}
}
#else
#pragma GLOBAL_ASM("asm/us/nonmatchings/33FE0/func_80033D44.s")
#endif
#ifdef NON_MATCHING
void func_80034254(StadiumModel* model) {