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Precompute height cooridnates offsets

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elsid 2023-08-01 21:00:53 +02:00
parent 2c2a60b86c
commit 5fda4b3cfd
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1 changed files with 6 additions and 5 deletions
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11
components/esm3terrain/storage.cpp
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@ -202,6 +202,10 @@ namespace ESMTerrain
normals.resize(numVerts * numVerts); normals.resize(numVerts * numVerts);
colours.resize(numVerts * numVerts); colours.resize(numVerts * numVerts);
// Only relevant for chunks smaller than (contained in) one cell
const int offsetX = (origin.x() - startCellX) * landSize;
const int offsetY = (origin.y() - startCellY) * landSize;
LandCache cache; LandCache cache;
const bool alteration = useAlteration(); const bool alteration = useAlteration();
@ -226,8 +230,8 @@ namespace ESMTerrain
validHeightDataExists = true; validHeightDataExists = true;
} }
int rowStart = 0; int rowStart = offsetX;
int colStart = 0; int colStart = offsetY;
// Skip the first row / column unless we're at a chunk edge, // Skip the first row / column unless we're at a chunk edge,
// since this row / column is already contained in a previous cell // since this row / column is already contained in a previous cell
// This is only relevant if we're creating a chunk spanning multiple cells // This is only relevant if we're creating a chunk spanning multiple cells
@ -236,9 +240,6 @@ namespace ESMTerrain
if (baseVertX != 0) if (baseVertX != 0)
rowStart += increment; rowStart += increment;
// Only relevant for chunks smaller than (contained in) one cell
rowStart += (origin.x() - startCellX) * landSize;
colStart += (origin.y() - startCellY) * landSize;
const int rowEnd = std::min( const int rowEnd = std::min(
static_cast<int>(rowStart + std::min(1.f, size) * (landSize - 1) + 1), static_cast<int>(landSize)); static_cast<int>(rowStart + std::min(1.f, size) * (landSize - 1) + 1), static_cast<int>(landSize));
const int colEnd = std::min( const int colEnd = std::min(