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feat(editor): add --scale-mesh and --translate-mesh basic transforms

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Two in-place mesh transforms covering the most common authoring
fix-ups:

--scale-mesh <wom-base> <factor>
  Multiplies every vertex position, bone pivot, animation
  translation keyframe, and bounds (min/max/radius) by <factor>.
  Normals are unchanged (uniform scale preserves direction).
  Useful for "I imported this OBJ but it's the wrong size" fixes.
  Factor must be positive + finite.

--translate-mesh <wom-base> <dx> <dy> <dz>
  Offsets vertices, bone pivots, and bounds by (dx, dy, dz).
  Animation keyframes are bone-local so they're left alone — only
  pivots shift. Radius stays constant (rigid translation).

Verified: unit cube scale 3x → bounds ±1.5, radius 2.598;
translate (10, 0, 0) → bounds (8.5,-1.5,-1.5)..(11.5,1.5,1.5);
negative scale (-1) rejected with exit 1. Brings command count
to 216.
This commit is contained in:
Kelsi 2026-05-07 05:57:33 -07:00
parent a65300d854
commit f8337ee73f
1 changed files with 121 additions and 0 deletions
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121
tools/editor/main.cpp
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@ -538,6 +538,10 @@ static void printUsage(const char* argv0) {
std::printf(" Procedural straight staircase along +X with N steps (default 5 / 0.2 / 0.3 / 1.0)\n");
std::printf(" --add-texture-to-mesh <wom-base> <png-path> [batchIdx]\n");
std::printf(" Bind an existing PNG into a WOM's texturePaths and point batchIdx (default 0) at it\n");
std::printf(" --scale-mesh <wom-base> <factor>\n");
std::printf(" Uniformly scale every vertex and bounds by <factor> (factor > 0)\n");
std::printf(" --translate-mesh <wom-base> <dx> <dy> <dz>\n");
std::printf(" Offset every vertex and bounds by (dx, dy, dz)\n");
std::printf(" --add-item <zoneDir> <name> [id] [quality] [displayId] [itemLevel]\n");
std::printf(" Append one item entry to <zoneDir>/items.json (auto-creates the file)\n");
std::printf(" --list-items <zoneDir> [--json]\n");
@ -953,6 +957,7 @@ int main(int argc, char* argv[]) {
"--export-data-tree-md", "--gen-texture", "--gen-mesh", "--gen-mesh-textured",
"--add-texture-to-mesh", "--add-texture-to-zone",
"--gen-mesh-stairs", "--gen-texture-gradient",
"--scale-mesh", "--translate-mesh",
"--validate-glb", "--info-glb", "--info-glb-tree", "--info-glb-bytes",
"--validate-jsondbc", "--check-glb-bounds", "--validate-stl",
"--validate-png", "--validate-blp",
@ -16095,6 +16100,122 @@ int main(int argc, char* argv[]) {
pngPath.c_str(), expected.c_str());
}
return 0;
} else if (std::strcmp(argv[i], "--scale-mesh") == 0 && i + 2 < argc) {
// Uniformly scale a WOM in place. Multiplies every
// vertex position, every bone pivot, and the bounds by
// <factor>. Normals are unchanged (uniform scale
// preserves direction). Useful for "I imported this OBJ
// but it's the wrong size" cleanup.
std::string womBase = argv[++i];
float factor = 1.0f;
try { factor = std::stof(argv[++i]); }
catch (...) {
std::fprintf(stderr,
"scale-mesh: <factor> must be a number\n");
return 1;
}
if (factor <= 0.0f || !std::isfinite(factor)) {
std::fprintf(stderr,
"scale-mesh: factor must be positive and finite (got %g)\n",
factor);
return 1;
}
if (womBase.size() >= 4 &&
womBase.substr(womBase.size() - 4) == ".wom") {
womBase = womBase.substr(0, womBase.size() - 4);
}
if (!wowee::pipeline::WoweeModelLoader::exists(womBase)) {
std::fprintf(stderr,
"scale-mesh: %s.wom does not exist\n", womBase.c_str());
return 1;
}
auto wom = wowee::pipeline::WoweeModelLoader::load(womBase);
if (!wom.isValid()) {
std::fprintf(stderr,
"scale-mesh: failed to load %s.wom\n", womBase.c_str());
return 1;
}
for (auto& v : wom.vertices) v.position *= factor;
for (auto& b : wom.bones) b.pivot *= factor;
// Animation translations also scale; rotation/scale
// tracks are dimensionless.
for (auto& a : wom.animations) {
for (auto& bone : a.boneKeyframes) {
for (auto& kf : bone) kf.translation *= factor;
}
}
wom.boundMin *= factor;
wom.boundMax *= factor;
wom.boundRadius *= factor;
if (!wowee::pipeline::WoweeModelLoader::save(wom, womBase)) {
std::fprintf(stderr,
"scale-mesh: failed to save %s.wom\n", womBase.c_str());
return 1;
}
std::printf("Scaled %s.wom by %g\n", womBase.c_str(), factor);
std::printf(" new bounds : (%.3f, %.3f, %.3f) - (%.3f, %.3f, %.3f)\n",
wom.boundMin.x, wom.boundMin.y, wom.boundMin.z,
wom.boundMax.x, wom.boundMax.y, wom.boundMax.z);
std::printf(" new radius : %.3f\n", wom.boundRadius);
return 0;
} else if (std::strcmp(argv[i], "--translate-mesh") == 0 && i + 4 < argc) {
// Offset every vertex (and bones / anim translations /
// bounds) by (dx, dy, dz). Useful for re-centering a
// mesh whose origin was wrong on import, or for shifting
// a procedural primitive that isn't centered the way
// you want.
std::string womBase = argv[++i];
float dx = 0, dy = 0, dz = 0;
try {
dx = std::stof(argv[++i]);
dy = std::stof(argv[++i]);
dz = std::stof(argv[++i]);
} catch (...) {
std::fprintf(stderr,
"translate-mesh: dx/dy/dz must be numbers\n");
return 1;
}
if (!std::isfinite(dx) || !std::isfinite(dy) || !std::isfinite(dz)) {
std::fprintf(stderr,
"translate-mesh: offsets must be finite\n");
return 1;
}
if (womBase.size() >= 4 &&
womBase.substr(womBase.size() - 4) == ".wom") {
womBase = womBase.substr(0, womBase.size() - 4);
}
if (!wowee::pipeline::WoweeModelLoader::exists(womBase)) {
std::fprintf(stderr,
"translate-mesh: %s.wom does not exist\n", womBase.c_str());
return 1;
}
auto wom = wowee::pipeline::WoweeModelLoader::load(womBase);
if (!wom.isValid()) {
std::fprintf(stderr,
"translate-mesh: failed to load %s.wom\n", womBase.c_str());
return 1;
}
glm::vec3 d(dx, dy, dz);
for (auto& v : wom.vertices) v.position += d;
for (auto& b : wom.bones) b.pivot += d;
// Bone-relative animation translations don't shift with
// the model — only the bone pivots do, since translations
// are in bone-local space. Leave anim keyframes alone.
wom.boundMin += d;
wom.boundMax += d;
// Radius is unchanged (translation is rigid, doesn't
// change extent).
if (!wowee::pipeline::WoweeModelLoader::save(wom, womBase)) {
std::fprintf(stderr,
"translate-mesh: failed to save %s.wom\n", womBase.c_str());
return 1;
}
std::printf("Translated %s.wom by (%g, %g, %g)\n",
womBase.c_str(), dx, dy, dz);
std::printf(" new bounds : (%.3f, %.3f, %.3f) - (%.3f, %.3f, %.3f)\n",
wom.boundMin.x, wom.boundMin.y, wom.boundMin.z,
wom.boundMax.x, wom.boundMax.y, wom.boundMax.z);
return 0;
} else if (std::strcmp(argv[i], "--add-texture-to-zone") == 0 && i + 2 < argc) {
// Import an existing PNG into a zone directory. Useful
// for the "I have an artist-painted texture, get it into