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Refine water rendering, swimming, and underwater visuals

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Kelsi 2026-02-03 20:40:59 -08:00
parent 1951dbd9e6
commit d0dac0df07
8 changed files with 440 additions and 56 deletions
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55
src/pipeline/wmo_loader.cpp
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@ -32,6 +32,7 @@ constexpr uint32_t MOBA = 0x4D4F4241; // Batches
constexpr uint32_t MOCV = 0x4D4F4356; // Vertex colors
constexpr uint32_t MONR = 0x4D4F4E52; // Normals
constexpr uint32_t MOTV = 0x4D4F5456; // Texture coords
constexpr uint32_t MLIQ = 0x4D4C4951; // Liquid
// Read utilities
template<typename T>
@ -533,6 +534,60 @@ bool WMOLoader::loadGroup(const std::vector<uint8_t>& groupData,
}
}
}
else if (subChunkId == MLIQ) { // MLIQ - WMO liquid data
// Basic WotLK layout:
// uint32 xVerts, yVerts, xTiles, yTiles
// float baseX, baseY, baseZ
// uint16 materialId
// (optional pad/unknown bytes)
// followed by vertex/tile payload
uint32_t parseOffset = mogpOffset;
if (parseOffset + 30 <= subChunkEnd) {
group.liquid.xVerts = read<uint32_t>(groupData, parseOffset);
group.liquid.yVerts = read<uint32_t>(groupData, parseOffset);
group.liquid.xTiles = read<uint32_t>(groupData, parseOffset);
group.liquid.yTiles = read<uint32_t>(groupData, parseOffset);
group.liquid.basePosition.x = read<float>(groupData, parseOffset);
group.liquid.basePosition.y = read<float>(groupData, parseOffset);
group.liquid.basePosition.z = read<float>(groupData, parseOffset);
group.liquid.materialId = read<uint16_t>(groupData, parseOffset);
if (parseOffset + sizeof(uint16_t) <= subChunkEnd) {
// Reserved/flags in some WMO liquid variants.
parseOffset += sizeof(uint16_t);
}
// Keep parser resilient across minor format variants:
// prefer explicit per-vertex floats, otherwise fall back to flat.
const size_t vertexCount =
static_cast<size_t>(group.liquid.xVerts) * static_cast<size_t>(group.liquid.yVerts);
const size_t tileCount =
static_cast<size_t>(group.liquid.xTiles) * static_cast<size_t>(group.liquid.yTiles);
const size_t bytesRemaining = (subChunkEnd > parseOffset) ? (subChunkEnd - parseOffset) : 0;
group.liquid.heights.clear();
group.liquid.flags.clear();
if (vertexCount > 0 && bytesRemaining >= vertexCount * sizeof(float)) {
group.liquid.heights.resize(vertexCount);
for (size_t i = 0; i < vertexCount; i++) {
group.liquid.heights[i] = read<float>(groupData, parseOffset);
}
} else if (vertexCount > 0) {
group.liquid.heights.resize(vertexCount, group.liquid.basePosition.z);
}
if (tileCount > 0 && parseOffset + tileCount <= subChunkEnd) {
group.liquid.flags.resize(tileCount);
std::memcpy(group.liquid.flags.data(), &groupData[parseOffset], tileCount);
} else if (tileCount > 0) {
group.liquid.flags.resize(tileCount, 0);
}
if (group.liquid.materialId == 0) {
group.liquid.materialId = static_cast<uint16_t>(group.liquidType);
}
}
}
mogpOffset = subChunkEnd;
}