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feat(editor): add --gen-texture-brick wall pattern command

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Procedural brick wall texture with offset rows + mortar lines. Each
row alternates by half a brick width, mortar gap appears between
rows and within each row. Useful for walls, chimneys, paths, and
medieval-zone props.

Defaults: brickW=64 brickH=24 mortarPx=4 W=H=256. Brings procedural
texture pattern set to 12 commands.
This commit is contained in:
Kelsi 2026-05-07 22:39:07 -07:00
parent 6bd7f18328
commit bd4e7a302d
1 changed files with 114 additions and 1 deletions
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115
tools/editor/main.cpp
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@ -543,6 +543,8 @@ static void printUsage(const char* argv0) {
std::printf(" Synthesize concentric ring pattern (target/seal style; default 16px rings, 256x256)\n");
std::printf(" --gen-texture-checker <out.png> <colorAHex> <colorBHex> [cellPx] [W H]\n");
std::printf(" Synthesize checkerboard with custom colors (gen-texture's checker is BW only)\n");
std::printf(" --gen-texture-brick <out.png> <brickHex> <mortarHex> [brickW] [brickH] [mortarPx] [W H]\n");
std::printf(" Brick wall pattern with offset rows + mortar lines (default 64×24, 4px mortar)\n");
std::printf(" --add-texture-to-zone <zoneDir> <png-path> [renameTo]\n");
std::printf(" Copy an existing PNG into <zoneDir> (optionally renaming it on the way in)\n");
std::printf(" --gen-mesh <wom-base> <cube|plane|sphere|cylinder|torus|cone|ramp> [size]\n");
@ -1065,7 +1067,7 @@ int main(int argc, char* argv[]) {
"--smooth-mesh-normals",
"--merge-meshes",
"--gen-texture-radial", "--gen-texture-stripes", "--gen-texture-dots",
"--gen-texture-rings", "--gen-texture-checker",
"--gen-texture-rings", "--gen-texture-checker", "--gen-texture-brick",
"--validate-glb", "--info-glb", "--info-glb-tree", "--info-glb-bytes",
"--validate-jsondbc", "--check-glb-bounds", "--validate-stl",
"--validate-png", "--validate-blp",
@ -18185,6 +18187,117 @@ int main(int argc, char* argv[]) {
std::printf(" cell px : %d\n", cellPx);
std::printf(" colors : %s + %s\n", aHex.c_str(), bHex.c_str());
return 0;
} else if (std::strcmp(argv[i], "--gen-texture-brick") == 0 && i + 3 < argc) {
// Brick wall pattern: rectangular bricks with offset rows
// (each row shifted by half a brick width) and mortar
// lines between. Useful for walls, chimneys, paths,
// medieval-zone props.
std::string outPath = argv[++i];
std::string brickHex = argv[++i];
std::string mortarHex = argv[++i];
int brickW = 64, brickH = 24, mortarPx = 4;
int W = 256, H = 256;
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { brickW = std::stoi(argv[++i]); } catch (...) {}
}
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { brickH = std::stoi(argv[++i]); } catch (...) {}
}
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { mortarPx = std::stoi(argv[++i]); } catch (...) {}
}
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { W = std::stoi(argv[++i]); } catch (...) {}
}
if (i + 1 < argc && argv[i + 1][0] != '-') {
try { H = std::stoi(argv[++i]); } catch (...) {}
}
if (W < 1 || H < 1 || W > 8192 || H > 8192 ||
brickW < 4 || brickW > 4096 ||
brickH < 4 || brickH > 4096 ||
mortarPx < 0 || mortarPx > brickH / 2) {
std::fprintf(stderr,
"gen-texture-brick: invalid dims (W/H 1..8192, brick 4..4096, mortar < brickH/2)\n");
return 1;
}
auto parseHex = [](std::string hex,
uint8_t& r, uint8_t& g, uint8_t& b) -> bool {
std::transform(hex.begin(), hex.end(), hex.begin(),
[](unsigned char c) { return std::tolower(c); });
if (!hex.empty() && hex[0] == '#') hex.erase(0, 1);
auto fromHexC = [](char c) -> int {
if (c >= '0' && c <= '9') return c - '0';
if (c >= 'a' && c <= 'f') return 10 + c - 'a';
return -1;
};
int v[6];
if (hex.size() == 6) {
for (int k = 0; k < 6; ++k) {
v[k] = fromHexC(hex[k]);
if (v[k] < 0) return false;
}
r = static_cast<uint8_t>((v[0] << 4) | v[1]);
g = static_cast<uint8_t>((v[2] << 4) | v[3]);
b = static_cast<uint8_t>((v[4] << 4) | v[5]);
return true;
}
if (hex.size() == 3) {
for (int k = 0; k < 3; ++k) {
v[k] = fromHexC(hex[k]);
if (v[k] < 0) return false;
}
r = static_cast<uint8_t>((v[0] << 4) | v[0]);
g = static_cast<uint8_t>((v[1] << 4) | v[1]);
b = static_cast<uint8_t>((v[2] << 4) | v[2]);
return true;
}
return false;
};
uint8_t br, bg, bb_, mr, mg, mb;
if (!parseHex(brickHex, br, bg, bb_)) {
std::fprintf(stderr,
"gen-texture-brick: '%s' is not a valid hex color\n",
brickHex.c_str());
return 1;
}
if (!parseHex(mortarHex, mr, mg, mb)) {
std::fprintf(stderr,
"gen-texture-brick: '%s' is not a valid hex color\n",
mortarHex.c_str());
return 1;
}
std::vector<uint8_t> pixels(static_cast<size_t>(W) * H * 3, 0);
int rowH = brickH; // total row height (brick + mortar)
int halfBrick = brickW / 2;
for (int y = 0; y < H; ++y) {
int row = y / rowH;
int yInRow = y % rowH;
bool inMortarH = (yInRow < mortarPx);
int xOffset = (row & 1) ? halfBrick : 0;
for (int x = 0; x < W; ++x) {
int xS = (x + xOffset) % brickW;
bool inMortarV = (xS < mortarPx);
bool isMortar = inMortarH || inMortarV;
size_t i2 = (static_cast<size_t>(y) * W + x) * 3;
pixels[i2 + 0] = isMortar ? mr : br;
pixels[i2 + 1] = isMortar ? mg : bg;
pixels[i2 + 2] = isMortar ? mb : bb_;
}
}
if (!stbi_write_png(outPath.c_str(), W, H, 3,
pixels.data(), W * 3)) {
std::fprintf(stderr,
"gen-texture-brick: stbi_write_png failed for %s\n",
outPath.c_str());
return 1;
}
std::printf("Wrote %s\n", outPath.c_str());
std::printf(" size : %dx%d\n", W, H);
std::printf(" brick : %d × %d px (%s)\n",
brickW, brickH, brickHex.c_str());
std::printf(" mortar : %d px (%s)\n",
mortarPx, mortarHex.c_str());
return 0;
} else if (std::strcmp(argv[i], "--gen-mesh") == 0 && i + 2 < argc) {
// Synthesize a procedural primitive WOM. Generates proper
// per-face normals, planar UVs, a bounding box, and a