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feat(editor): add --gen-texture-chevron V-stripe pattern

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68th procedural texture: stack of V-shape stripes with
sharp seams. Within each vertical period the upper half
slopes one way and the lower half slopes the other; the
distance from the apex is added as an x-shift to the
stripe-column test, so stripes follow the V profile and
form clean chevrons.

Distinct from --gen-texture-herringbone (which alternates
slab orientation between cells) and --gen-texture-zebra
(sinusoidal stripes with no seam) — chevron has the
characteristic sharp V transition.

Useful for military insignia, sportswear, heraldic banners,
roadwork signage, paladin tabards, ranger cloaks. Default
24-period / 24-stride / 6-wide gives a chunky chevron at
256x256; tighter values read as fine ribbon trim.
This commit is contained in:
Kelsi 2026-05-09 12:57:47 -07:00
parent 9bd9b50bdb
commit 2225448dbf
3 changed files with 70 additions and 1 deletions
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2
tools/editor/cli_help.cpp
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@ -169,6 +169,8 @@ void printUsage(const char* argv0) {
std::printf(" Diamond grid: axis-aligned solid diamonds in cells with bg gaps (clean tile / mosaic / floor inlay)\n");
std::printf(" --gen-texture-houndstooth <out.png> <toothHex> <bgHex> [cellSize] [W H]\n");
std::printf(" Houndstooth: classic textile broken-check pattern via seamless 8x8 motif (Scottish weave)\n");
std::printf(" --gen-texture-chevron <out.png> <bgHex> <lineHex> [period] [stride] [lineW] [W H]\n");
std::printf(" Chevron: stack of V-shape stripes with sharp seams (military / sportswear / heraldic banners)\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");