diff options
Diffstat (limited to 'source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.cpp')
| -rw-r--r-- | source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.cpp | 165 |
1 files changed, 88 insertions, 77 deletions
diff --git a/source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.cpp b/source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.cpp index 8fc3fe810af..1384dc0f78b 100644 --- a/source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.cpp +++ b/source/blender/freestyle/intern/view_map/AverageAreaGridDensityProvider.cpp @@ -25,112 +25,123 @@ namespace Freestyle { -AverageAreaGridDensityProvider::AverageAreaGridDensityProvider(OccluderSource& source, const real proscenium[4], +AverageAreaGridDensityProvider::AverageAreaGridDensityProvider(OccluderSource &source, + const real proscenium[4], real sizeFactor) -: GridDensityProvider(source) + : GridDensityProvider(source) { - initialize (proscenium, sizeFactor); + initialize(proscenium, sizeFactor); } -AverageAreaGridDensityProvider::AverageAreaGridDensityProvider(OccluderSource& source, const BBox<Vec3r>& bbox, - const GridHelpers::Transform& transform, real sizeFactor) -: GridDensityProvider(source) +AverageAreaGridDensityProvider::AverageAreaGridDensityProvider( + OccluderSource &source, + const BBox<Vec3r> &bbox, + const GridHelpers::Transform &transform, + real sizeFactor) + : GridDensityProvider(source) { - real proscenium[4]; - calculateQuickProscenium(transform, bbox, proscenium); + real proscenium[4]; + calculateQuickProscenium(transform, bbox, proscenium); - initialize(proscenium, sizeFactor); + initialize(proscenium, sizeFactor); } -AverageAreaGridDensityProvider::AverageAreaGridDensityProvider(OccluderSource& source, real sizeFactor) -: GridDensityProvider(source) +AverageAreaGridDensityProvider::AverageAreaGridDensityProvider(OccluderSource &source, + real sizeFactor) + : GridDensityProvider(source) { - real proscenium[4]; - calculateOptimalProscenium(source, proscenium); + real proscenium[4]; + calculateOptimalProscenium(source, proscenium); - initialize(proscenium, sizeFactor); + initialize(proscenium, sizeFactor); } -AverageAreaGridDensityProvider::~AverageAreaGridDensityProvider() {} +AverageAreaGridDensityProvider::~AverageAreaGridDensityProvider() +{ +} void AverageAreaGridDensityProvider::initialize(const real proscenium[4], real sizeFactor) { - float prosceniumWidth = (proscenium[1] - proscenium[0]); - float prosceniumHeight = (proscenium[3] - proscenium[2]); - - real cellArea = 0.0; - unsigned numFaces = 0; - for (source.begin(); source.isValid(); source.next()) { - Polygon3r& poly(source.getGridSpacePolygon()); - Vec3r min, max; - poly.getBBox(min, max); - cellArea += (max[0] - min[0]) * (max[1] - min[1]); - ++numFaces; - } - if (G.debug & G_DEBUG_FREESTYLE) { - cout << "Total area: " << cellArea << ". Number of faces: " << numFaces << "." << endl; - } - cellArea /= numFaces; - cellArea *= sizeFactor; - if (G.debug & G_DEBUG_FREESTYLE) { - cout << "Building grid with average area " << cellArea << endl; - } - - _cellSize = sqrt(cellArea); - unsigned maxCells = 931; // * 1.1 = 1024 - if (std::max(prosceniumWidth, prosceniumHeight) / _cellSize > maxCells) { - if (G.debug & G_DEBUG_FREESTYLE) { - cout << "Scene-dependent cell size (" << _cellSize << " square) is too small." << endl; - } - _cellSize = std::max(prosceniumWidth, prosceniumHeight) / maxCells; - } - // Now we know how many cells make each side of our grid - _cellsX = ceil(prosceniumWidth / _cellSize); - _cellsY = ceil(prosceniumHeight / _cellSize); - if (G.debug & G_DEBUG_FREESTYLE) { - cout << _cellsX << "x" << _cellsY << " cells of size " << _cellSize << " square." << endl; - } - - // Make sure the grid exceeds the proscenium by a small amount - float safetyZone = 0.1f; - if (_cellsX * _cellSize < prosceniumWidth * (1.0 + safetyZone)) { - _cellsX = ceil(prosceniumWidth * (1.0 + safetyZone) / _cellSize); - } - if (_cellsY * _cellSize < prosceniumHeight * (1.0 + safetyZone)) { - _cellsY = ceil(prosceniumHeight * (1.0 + safetyZone) / _cellSize); - } - if (G.debug & G_DEBUG_FREESTYLE) { - cout << _cellsX << "x" << _cellsY << " cells of size " << _cellSize << " square." << endl; - } - - // Find grid origin - _cellOrigin[0] = ((proscenium[0] + proscenium[1]) / 2.0) - (_cellsX / 2.0) * _cellSize; - _cellOrigin[1] = ((proscenium[2] + proscenium[3]) / 2.0) - (_cellsY / 2.0) * _cellSize; + float prosceniumWidth = (proscenium[1] - proscenium[0]); + float prosceniumHeight = (proscenium[3] - proscenium[2]); + + real cellArea = 0.0; + unsigned numFaces = 0; + for (source.begin(); source.isValid(); source.next()) { + Polygon3r &poly(source.getGridSpacePolygon()); + Vec3r min, max; + poly.getBBox(min, max); + cellArea += (max[0] - min[0]) * (max[1] - min[1]); + ++numFaces; + } + if (G.debug & G_DEBUG_FREESTYLE) { + cout << "Total area: " << cellArea << ". Number of faces: " << numFaces << "." << endl; + } + cellArea /= numFaces; + cellArea *= sizeFactor; + if (G.debug & G_DEBUG_FREESTYLE) { + cout << "Building grid with average area " << cellArea << endl; + } + + _cellSize = sqrt(cellArea); + unsigned maxCells = 931; // * 1.1 = 1024 + if (std::max(prosceniumWidth, prosceniumHeight) / _cellSize > maxCells) { + if (G.debug & G_DEBUG_FREESTYLE) { + cout << "Scene-dependent cell size (" << _cellSize << " square) is too small." << endl; + } + _cellSize = std::max(prosceniumWidth, prosceniumHeight) / maxCells; + } + // Now we know how many cells make each side of our grid + _cellsX = ceil(prosceniumWidth / _cellSize); + _cellsY = ceil(prosceniumHeight / _cellSize); + if (G.debug & G_DEBUG_FREESTYLE) { + cout << _cellsX << "x" << _cellsY << " cells of size " << _cellSize << " square." << endl; + } + + // Make sure the grid exceeds the proscenium by a small amount + float safetyZone = 0.1f; + if (_cellsX * _cellSize < prosceniumWidth * (1.0 + safetyZone)) { + _cellsX = ceil(prosceniumWidth * (1.0 + safetyZone) / _cellSize); + } + if (_cellsY * _cellSize < prosceniumHeight * (1.0 + safetyZone)) { + _cellsY = ceil(prosceniumHeight * (1.0 + safetyZone) / _cellSize); + } + if (G.debug & G_DEBUG_FREESTYLE) { + cout << _cellsX << "x" << _cellsY << " cells of size " << _cellSize << " square." << endl; + } + + // Find grid origin + _cellOrigin[0] = ((proscenium[0] + proscenium[1]) / 2.0) - (_cellsX / 2.0) * _cellSize; + _cellOrigin[1] = ((proscenium[2] + proscenium[3]) / 2.0) - (_cellsY / 2.0) * _cellSize; } AverageAreaGridDensityProviderFactory::AverageAreaGridDensityProviderFactory(real sizeFactor) -: sizeFactor(sizeFactor) + : sizeFactor(sizeFactor) { } -AverageAreaGridDensityProviderFactory::~AverageAreaGridDensityProviderFactory() {} +AverageAreaGridDensityProviderFactory::~AverageAreaGridDensityProviderFactory() +{ +} -AutoPtr<GridDensityProvider> -AverageAreaGridDensityProviderFactory::newGridDensityProvider(OccluderSource& source, const real proscenium[4]) +AutoPtr<GridDensityProvider> AverageAreaGridDensityProviderFactory::newGridDensityProvider( + OccluderSource &source, const real proscenium[4]) { - return AutoPtr<GridDensityProvider>(new AverageAreaGridDensityProvider(source, proscenium, sizeFactor)); + return AutoPtr<GridDensityProvider>( + new AverageAreaGridDensityProvider(source, proscenium, sizeFactor)); } -AutoPtr<GridDensityProvider> -AverageAreaGridDensityProviderFactory::newGridDensityProvider(OccluderSource& source, const BBox<Vec3r>& bbox, - const GridHelpers::Transform& transform) +AutoPtr<GridDensityProvider> AverageAreaGridDensityProviderFactory::newGridDensityProvider( + OccluderSource &source, const BBox<Vec3r> &bbox, const GridHelpers::Transform &transform) { - return AutoPtr<GridDensityProvider>(new AverageAreaGridDensityProvider(source, bbox, transform, sizeFactor)); + return AutoPtr<GridDensityProvider>( + new AverageAreaGridDensityProvider(source, bbox, transform, sizeFactor)); } -AutoPtr<GridDensityProvider> AverageAreaGridDensityProviderFactory::newGridDensityProvider(OccluderSource& source) +AutoPtr<GridDensityProvider> AverageAreaGridDensityProviderFactory::newGridDensityProvider( + OccluderSource &source) { - return AutoPtr<GridDensityProvider>(new AverageAreaGridDensityProvider(source, sizeFactor)); + return AutoPtr<GridDensityProvider>(new AverageAreaGridDensityProvider(source, sizeFactor)); } } /* namespace Freestyle */ |