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feat(editor): add --gen-mesh-bench wooden bench primitive

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Three-box composite: long thin seat plank on top + 2 leg
slabs at the ends (positioned at 90% along the bench length
to leave a small overhang on each side). Legs are vertical
Y-aligned slabs spanning the full height from floor to
bottom-of-seat, ~5% of bench length thick.

Defaults: length=1.5, seatY=0.5, seatT=0.06, seatW=0.4. Useful
for taverns, plazas, roadside rest stops, council halls.
Brings the procedural mesh primitive set to 33.
This commit is contained in:
Kelsi 2026-05-09 03:43:11 -07:00
parent c519ee3e99
commit 0a5f508f4e
3 changed files with 109 additions and 1 deletions
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106
tools/editor/cli_gen_mesh.cpp
View file

@ -3943,6 +3943,109 @@ int handleGrave(int& i, int argc, char** argv) {
return 0;
}
int handleBench(int& i, int argc, char** argv) {
// Wooden bench: long thin seat plank (X×Z plane) supported
// by 2 leg slabs (vertical Y rectangles) at each end. Legs
// are 90% of the bench's depth and span the full seat
// height down to the floor. The 33rd procedural mesh
// primitive — useful for taverns, plazas, roadside rest
// stops.
std::string womBase = argv[++i];
float length = 1.5f; // along X (bench length)
float seatY = 0.5f; // seat top height
float seatT = 0.06f; // seat plank thickness (Y)
float seatW = 0.4f; // seat width (Z)
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { length = std::stof(argv[++i]); } catch (...) {}
}
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { seatY = std::stof(argv[++i]); } catch (...) {}
}
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { seatT = std::stof(argv[++i]); } catch (...) {}
}
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { seatW = std::stof(argv[++i]); } catch (...) {}
}
if (length <= 0 || seatY <= 0 || seatT <= 0 || seatW <= 0 ||
seatT > seatY) {
std::fprintf(stderr,
"gen-mesh-bench: all dims > 0; seatT must be <= seatY\n");
return 1;
}
if (womBase.size() >= 4 &&
womBase.substr(womBase.size() - 4) == ".wom") {
womBase = womBase.substr(0, womBase.size() - 4);
}
wowee::pipeline::WoweeModel wom;
wom.name = std::filesystem::path(womBase).stem().string();
wom.version = 3;
auto addBox = [&](float cx, float cy, float cz,
float hx, float hy, float hz) {
struct Face { glm::vec3 n, du, dv; };
Face faces[6] = {
{{0, 1, 0}, {1, 0, 0}, {0, 0, 1}},
{{0,-1, 0}, {1, 0, 0}, {0, 0,-1}},
{{1, 0, 0}, {0, 0, 1}, {0, 1, 0}},
{{-1,0, 0}, {0, 0,-1}, {0, 1, 0}},
{{0, 0, 1}, {-1,0, 0}, {0, 1, 0}},
{{0, 0,-1}, {1, 0, 0}, {0, 1, 0}},
};
glm::vec3 c(cx, cy, cz);
glm::vec3 ext(hx, hy, hz);
for (const Face& f : faces) {
glm::vec3 center = c + glm::vec3(f.n.x*hx, f.n.y*hy, f.n.z*hz);
glm::vec3 du = glm::vec3(f.du.x*ext.x, f.du.y*ext.y, f.du.z*ext.z);
glm::vec3 dv = glm::vec3(f.dv.x*ext.x, f.dv.y*ext.y, f.dv.z*ext.z);
uint32_t base = static_cast<uint32_t>(wom.vertices.size());
auto push = [&](glm::vec3 p, float u, float v) {
wowee::pipeline::WoweeModel::Vertex vtx;
vtx.position = p; vtx.normal = f.n; vtx.texCoord = {u, v};
wom.vertices.push_back(vtx);
};
push(center - du - dv, 0, 0);
push(center + du - dv, 1, 0);
push(center + du + dv, 1, 1);
push(center - du + dv, 0, 1);
wom.indices.insert(wom.indices.end(),
{base, base + 1, base + 2, base, base + 2, base + 3});
}
};
// Seat: top plank at y=seatY-seatT to y=seatY.
float seatCY = seatY - seatT * 0.5f;
addBox(0, seatCY, 0, length * 0.5f, seatT * 0.5f, seatW * 0.5f);
// Two leg slabs: thin Y slabs at the +X and -X ends, span
// 90% of the seat depth, 5% of bench length thick, full
// height from floor to bottom-of-seat.
float legHy = (seatY - seatT) * 0.5f;
float legCY = legHy;
float legHx = length * 0.025f; // ~2.5% of length on each side
float legHz = seatW * 0.45f;
float legX = length * 0.45f; // legs at 90% of length out
addBox( legX, legCY, 0, legHx, legHy, legHz);
addBox(-legX, legCY, 0, legHx, legHy, legHz);
wowee::pipeline::WoweeModel::Batch batch;
batch.indexStart = 0;
batch.indexCount = static_cast<uint32_t>(wom.indices.size());
batch.textureIndex = 0;
wom.batches.push_back(batch);
wom.boundMin = glm::vec3(-length * 0.5f, 0, -seatW * 0.5f);
wom.boundMax = glm::vec3( length * 0.5f, seatY, seatW * 0.5f);
if (!wowee::pipeline::WoweeModelLoader::save(wom, womBase)) {
std::fprintf(stderr,
"gen-mesh-bench: failed to save %s.wom\n", womBase.c_str());
return 1;
}
std::printf("Wrote %s.wom\n", womBase.c_str());
std::printf(" length : %.3f\n", length);
std::printf(" seat Y : %.3f (thickness %.3f)\n", seatY, seatT);
std::printf(" seat W : %.3f\n", seatW);
std::printf(" legs : 2 (at ±%.3f along X)\n", legX);
std::printf(" vertices : %zu\n", wom.vertices.size());
std::printf(" triangles : %zu\n", wom.indices.size() / 3);
return 0;
}
} // namespace
bool handleGenMesh(int& i, int argc, char** argv, int& outRc) {
@ -4034,6 +4137,9 @@ bool handleGenMesh(int& i, int argc, char** argv, int& outRc) {
if (std::strcmp(argv[i], "--gen-mesh-grave") == 0 && i + 1 < argc) {
outRc = handleGrave(i, argc, argv); return true;
}
if (std::strcmp(argv[i], "--gen-mesh-bench") == 0 && i + 1 < argc) {
outRc = handleBench(i, argc, argv); return true;
}
return false;
}

2
tools/editor/cli_help.cpp
View file

@ -142,6 +142,8 @@ void printUsage(const char* argv0) {
std::printf(" Banner: vertical pole + rectangular hanging flag (default 3.0/0.05/0.8/1.2)\n");
std::printf(" --gen-mesh-grave <wom-base> [tabletWidth] [tabletHeight] [tabletThickness] [baseWidth]\n");
std::printf(" Tombstone: low rectangular base + vertical tablet (default 0.6/1.0/0.15/0.8)\n");
std::printf(" --gen-mesh-bench <wom-base> [length] [seatHeight] [seatThickness] [seatWidth]\n");
std::printf(" Wooden bench: seat plank + 2 leg slabs (default 1.5/0.5/0.06/0.4)\n");
std::printf(" Procedural tree: cylindrical trunk + spherical foliage (default 0.1/2.0/0.7)\n");
std::printf(" --displace-mesh <wom-base> <heightmap.png> [scale]\n");
std::printf(" Offset each vertex along its normal by heightmap brightness × scale (default 1.0)\n");

2
tools/editor/main.cpp
View file

@ -200,7 +200,7 @@ int main(int argc, char* argv[]) {
"--gen-mesh-statue", "--gen-mesh-altar", "--gen-mesh-portal",
"--gen-mesh-archway", "--gen-mesh-barrel", "--gen-mesh-chest",
"--gen-mesh-anvil", "--gen-mesh-mushroom", "--gen-mesh-cart",
"--gen-mesh-banner", "--gen-mesh-grave",
"--gen-mesh-banner", "--gen-mesh-grave", "--gen-mesh-bench",
"--gen-texture-gradient",
"--gen-mesh-from-heightmap", "--export-mesh-heightmap",
"--displace-mesh",