Render water in editor.
Aesylwinn
9 years ago
parent
60535b77e8
commit
5674e0da24
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#include "cellwater.hpp"
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#include <osg/Geode>
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#include <osg/Geometry>
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#include <osg/Group>
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#include <osg/PolygonOffset>
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#include <osg/PositionAttitudeTransform>
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#include <components/esm/loadland.hpp>
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#include <components/misc/stringops.hpp>
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#include "../../model/world/cell.hpp"
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#include "../../model/world/cellcoordinates.hpp"
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#include "../../model/world/data.hpp"
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#include "mask.hpp"
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namespace CSVRender
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{
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const int CellWater::CellSize = ESM::Land::REAL_SIZE;
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CellWater::CellWater(CSMWorld::Data& data, osg::Group* cellNode, const std::string& id,
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const CSMWorld::CellCoordinates& cellCoords)
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: mData(data)
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, mId(id)
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, mParentNode(cellNode)
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, mWaterTransform(0)
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, mWaterNode(0)
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, mWaterGeometry(0)
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, mExterior(false)
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, mHasWater(false)
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, mWaterHeight(0)
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{
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mWaterTransform = new osg::PositionAttitudeTransform();
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mWaterTransform->setPosition(osg::Vec3f(cellCoords.getX() * CellSize, cellCoords.getY() * CellSize, 0));
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mWaterTransform->setNodeMask(Mask_Water);
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mParentNode->addChild(mWaterTransform);
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mWaterNode = new osg::Geode();
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mWaterTransform->addChild(mWaterNode);
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int cellIndex = mData.getCells().searchId(mId);
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if (cellIndex > -1)
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{
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updateCellData(mData.getCells().getRecord(cellIndex).get());
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}
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// Keep water existance/height up to date
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QAbstractItemModel* cells = mData.getTableModel(CSMWorld::UniversalId::Type_Cells);
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connect(cells, SIGNAL(dataChanged(const QModelIndex&, const QModelIndex&)),
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this, SLOT(cellDataChanged(const QModelIndex&, const QModelIndex&)));
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}
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CellWater::~CellWater()
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{
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mParentNode->removeChild(mWaterTransform);
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}
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void CellWater::updateCellData(const CSMWorld::Cell& cell)
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{
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int cellIndex = mData.getCells().searchId(mId);
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if (cellIndex > -1)
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{
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const CSMWorld::Record<CSMWorld::Cell>& cellRecord = mData.getCells().getRecord(cellIndex);
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mDeleted = cellRecord.isDeleted();
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if (!mDeleted)
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{
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mExterior = cellRecord.get().isExterior();
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mHasWater = cellRecord.get().hasWater();
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mWaterHeight = cellRecord.get().mWater;
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}
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}
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else
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{
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mDeleted = true;
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}
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update();
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}
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void CellWater::cellDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight)
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{
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const CSMWorld::Collection<CSMWorld::Cell>& cells = mData.getCells();
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int rowStart = -1;
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int rowEnd = -1;
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if (topLeft.parent().isValid())
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{
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rowStart = topLeft.parent().row();
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rowEnd = bottomRight.parent().row();
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}
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else
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{
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rowStart = topLeft.row();
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rowEnd = bottomRight.row();
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}
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for (int row = rowStart; row <= rowEnd; ++row)
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{
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const CSMWorld::Cell& cell = cells.getRecord(row).get();
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if (Misc::StringUtils::lowerCase(cell.mId) == mId)
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updateCellData(cell);
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}
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}
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void CellWater::update()
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{
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const int InteriorSize = CellSize * 10;
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const size_t NumPoints = 4;
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const size_t NumIndices = 6;
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const osg::Vec3f ExteriorPoints[] =
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{
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osg::Vec3f(0, 0, mWaterHeight),
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osg::Vec3f(0, CellSize, mWaterHeight),
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osg::Vec3f(CellSize, CellSize, mWaterHeight),
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osg::Vec3f(CellSize, 0, mWaterHeight)
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};
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const osg::Vec3f InteriorPoints[] =
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{
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osg::Vec3f(-InteriorSize, -InteriorSize, mWaterHeight),
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osg::Vec3f(-InteriorSize, InteriorSize, mWaterHeight),
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osg::Vec3f( InteriorSize, InteriorSize, mWaterHeight),
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osg::Vec3f( InteriorSize, -InteriorSize, mWaterHeight)
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};
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const unsigned short TriangleStrip[] =
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{
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0, 1, 2, 3, 0, 1
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};
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const osg::Vec4f Color = osg::Vec4f(0.6f, 0.7f, 1.f, 0.5f);
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if (mWaterGeometry)
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{
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mWaterNode->removeDrawable(mWaterGeometry);
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mWaterGeometry = 0;
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}
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if (mDeleted || !mHasWater)
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return;
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mWaterGeometry = new osg::Geometry();
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osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array();
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osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array();
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osg::ref_ptr<osg::DrawElementsUShort> indices = new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLE_STRIP,
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NumIndices);
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for (size_t i = 0; i < NumPoints; ++i)
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{
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if (mExterior)
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vertices->push_back(ExteriorPoints[i]);
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else
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vertices->push_back(InteriorPoints[i]);
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}
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colors->push_back(Color);
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for (size_t i = 0; i < NumIndices; ++i)
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{
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indices->setElement(i, TriangleStrip[i]);
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}
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mWaterGeometry->setVertexArray(vertices);
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mWaterGeometry->setColorArray(colors, osg::Array::BIND_OVERALL);
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mWaterGeometry->addPrimitiveSet(indices);
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// Transparency
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mWaterGeometry->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
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mWaterGeometry->getOrCreateStateSet()->setMode(GL_BLEND, osg::StateAttribute::ON );
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mWaterGeometry->getOrCreateStateSet()->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
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mWaterGeometry->getOrCreateStateSet()->setRenderBinDetails(1000, "RenderBin");
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// Reduce some z-fighting
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osg::ref_ptr<osg::PolygonOffset> polygonOffset = new osg::PolygonOffset();
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polygonOffset->setFactor(0.2f);
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polygonOffset->setUnits(0.2f);
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mWaterGeometry->getOrCreateStateSet()->setAttributeAndModes(polygonOffset,
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osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON);
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mWaterNode->addDrawable(mWaterGeometry);
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}
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}
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@ -0,0 +1,69 @@
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#ifndef CSV_RENDER_CELLWATER_H
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#define CSV_RENDER_CELLWATER_H
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#include <string>
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#include <osg/ref_ptr>
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#include <QObject>
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namespace osg
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{
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class Geode;
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class Geometry;
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class Group;
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class PositionAttitudeTransform;
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}
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namespace CSMWorld
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{
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class Cell;
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class CellCoordinates;
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class Data;
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}
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namespace CSVRender
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{
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/// For exterior cells, this adds a patch of water to fit the size of the cell. For interior cells with water, this
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/// adds a large patch of water much larger than the typical size of a cell.
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class CellWater : public QObject
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{
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Q_OBJECT
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public:
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CellWater(CSMWorld::Data& data, osg::Group* cellNode, const std::string& id,
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const CSMWorld::CellCoordinates& cellCoords);
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~CellWater();
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void updateCellData(const CSMWorld::Cell& cell);
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private slots:
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void cellDataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight);
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private:
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void update();
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static const int CellSize;
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CSMWorld::Data& mData;
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std::string mId;
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osg::Group* mParentNode;
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osg::ref_ptr<osg::PositionAttitudeTransform> mWaterTransform;
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osg::ref_ptr<osg::Geode> mWaterNode;
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osg::ref_ptr<osg::Geometry> mWaterGeometry;
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bool mDeleted;
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bool mExterior;
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bool mHasWater;
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float mWaterHeight;
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};
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}
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#endif
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