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https://github.com/Kelsidavis/WoWee.git
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dc29f7f135
Three additions to the Wowee Open Light format that landed
last commit:
• WoweeLightLoader::sampleAtTime(light, timeMin) returns
the linearly-interpolated keyframe at any time-of-day,
correctly handling wrap-around between the last keyframe
and the first (e.g. 21:00 blends from dusk toward
midnight by going forward through 00:00).
• --validate-wol <wol-base> [--json] walks every keyframe
and reports structural problems: time bounds (must be
[0, 1440)), strict-ascending sort order, fogEnd >
fogStart, finite color components. Exit code 0 PASS /
1 FAIL — CI-friendly.
• --info-wol-at <wol-base> <HH:MM|minutes> samples the
interpolated state at a specific time of day. Useful
for previewing what the renderer would feed in at a
given moment, debugging keyframe gaps, or previewing
a sub-range of the cycle.
Smoke-tested: dawn-to-midnight blend at 03:00 yields a
plausible mid-fade ambient (0.18, 0.16, 0.15) and dusk-to-
midnight wrap at 21:00 yields the symmetric (0.19, 0.145,
0.14). The default 4-keyframe day/night cycle from
makeDefaultDayNight passes --validate-wol cleanly.
71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
#pragma once
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#include <glm/glm.hpp>
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#include <cstdint>
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#include <string>
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#include <vector>
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namespace wowee {
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namespace pipeline {
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// Wowee Open Light format (.wol) — novel replacement for WoW's
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// Light.dbc / LightParams.dbc / LightIntBand.dbc / LightFloatBand.dbc
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// stack. A WOL file holds a list of time-of-day keyframes for one
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// zone, each capturing the ambient + directional + fog state at that
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// moment. The renderer interpolates between adjacent keyframes by
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// time-of-day.
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//
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// Binary layout (little-endian):
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// magic[4] = "WOLA"
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// version (uint32) = current 1
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// nameLen (uint32)
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// name bytes (nameLen)
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// keyframeCount (uint32)
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// keyframes (each):
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// timeOfDayMin (uint32) -- 0..1439, minutes since midnight
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// ambientColor.rgb (3 × float)
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// directionalColor.rgb (3 × float)
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// directionalDir.xyz (3 × float) -- unit vector pointing FROM
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// the sun TO the surface
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// fogColor.rgb (3 × float)
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// fogStart (float) -- meters
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// fogEnd (float) -- meters
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struct WoweeLight {
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struct Keyframe {
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uint32_t timeOfDayMin = 0;
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glm::vec3 ambientColor{0.20f, 0.20f, 0.25f};
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glm::vec3 directionalColor{0.95f, 0.92f, 0.85f};
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glm::vec3 directionalDir{0.0f, -1.0f, 0.0f};
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glm::vec3 fogColor{0.65f, 0.70f, 0.78f};
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float fogStart = 80.0f;
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float fogEnd = 600.0f;
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};
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std::string name; // zone or scene name
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std::vector<Keyframe> keyframes; // sorted by timeOfDayMin
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bool isValid() const { return !keyframes.empty(); }
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};
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class WoweeLightLoader {
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public:
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static bool save(const WoweeLight& light, const std::string& basePath);
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static WoweeLight load(const std::string& basePath);
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static bool exists(const std::string& basePath);
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// Convenience: emit a 4-keyframe day/night cycle (dawn 6:00,
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// noon 12:00, dusk 18:00, midnight 0:00) with reasonable
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// outdoor defaults. Used by --gen-light to create a starter
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// file users can edit.
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static WoweeLight makeDefaultDayNight(const std::string& zoneName);
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// Lookup the interpolated lighting state at any time-of-day
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// (clamped to 0..1439 minutes). Linearly blends between the
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// two adjacent keyframes; wraps around midnight if the query
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// time falls between the last and first keyframe.
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static WoweeLight::Keyframe sampleAtTime(const WoweeLight& light,
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uint32_t timeMin);
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};
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} // namespace pipeline
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} // namespace wowee
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