mirror of https://github.com/OpenMW/openmw.git
Support recast mesh rendering
elsid
5 years ago
parent
f603daecdc
commit
7ae7cb181d
@ -0,0 +1,92 @@
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#include "recastmesh.hpp"
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#include <components/sceneutil/vismask.hpp>
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#include <components/sceneutil/recastmesh.hpp>
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#include <components/debug/debuglog.hpp>
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#include <osg/PositionAttitudeTransform>
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namespace MWRender
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{
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RecastMesh::RecastMesh(const osg::ref_ptr<osg::Group>& root, bool enabled)
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: mRootNode(root)
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, mEnabled(enabled)
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{
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}
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RecastMesh::~RecastMesh()
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{
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if (mEnabled)
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disable();
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}
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bool RecastMesh::toggle()
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{
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if (mEnabled)
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disable();
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else
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enable();
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return mEnabled;
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}
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void RecastMesh::update(const DetourNavigator::RecastMeshTiles& tiles, const DetourNavigator::Settings& settings)
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{
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if (!mEnabled)
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return;
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for (auto it = mGroups.begin(); it != mGroups.end();)
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{
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const auto tile = tiles.find(it->first);
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if (tile == tiles.end())
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{
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mRootNode->removeChild(it->second.mValue);
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it = mGroups.erase(it);
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continue;
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}
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if (it->second.mGeneration != tile->second->getGeneration()
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|| it->second.mRevision != tile->second->getRevision())
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{
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const auto group = SceneUtil::createRecastMeshGroup(*tile->second, settings);
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group->setNodeMask(SceneUtil::Mask_Debug);
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mRootNode->removeChild(it->second.mValue);
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mRootNode->addChild(group);
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it->second.mValue = group;
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it->second.mGeneration = tile->second->getGeneration();
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it->second.mRevision = tile->second->getRevision();
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continue;
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}
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++it;
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}
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for (const auto& tile : tiles)
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{
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if (mGroups.count(tile.first))
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continue;
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const auto group = SceneUtil::createRecastMeshGroup(*tile.second, settings);
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group->setNodeMask(SceneUtil::Mask_Debug);
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mGroups.emplace(tile.first, Group {tile.second->getGeneration(), tile.second->getRevision(), group});
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mRootNode->addChild(group);
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}
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}
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void RecastMesh::reset()
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{
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std::for_each(mGroups.begin(), mGroups.end(), [&] (const auto& v) { mRootNode->removeChild(v.second.mValue); });
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mGroups.clear();
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}
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void RecastMesh::enable()
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{
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std::for_each(mGroups.begin(), mGroups.end(), [&] (const auto& v) { mRootNode->addChild(v.second.mValue); });
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mEnabled = true;
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}
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void RecastMesh::disable()
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{
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std::for_each(mGroups.begin(), mGroups.end(), [&] (const auto& v) { mRootNode->removeChild(v.second.mValue); });
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mEnabled = false;
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}
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}
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@ -0,0 +1,53 @@
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#ifndef OPENMW_MWRENDER_RECASTMESH_H
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#define OPENMW_MWRENDER_RECASTMESH_H
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#include <components/detournavigator/navigator.hpp>
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#include <osg/ref_ptr>
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#include <vector>
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namespace osg
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{
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class Group;
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class Geometry;
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}
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namespace MWRender
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{
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class RecastMesh
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{
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public:
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RecastMesh(const osg::ref_ptr<osg::Group>& root, bool enabled);
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~RecastMesh();
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bool toggle();
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void update(const DetourNavigator::RecastMeshTiles& recastMeshTiles, const DetourNavigator::Settings& settings);
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void reset();
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void enable();
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void disable();
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bool isEnabled() const
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{
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return mEnabled;
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}
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private:
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struct Group
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{
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std::size_t mGeneration;
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std::size_t mRevision;
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osg::ref_ptr<osg::Group> mValue;
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};
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osg::ref_ptr<osg::Group> mRootNode;
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bool mEnabled;
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std::map<DetourNavigator::TilePosition, Group> mGroups;
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};
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}
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#endif
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@ -0,0 +1,15 @@
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#ifndef OPENMW_COMPONENTS_DETOURNAVIGATOR_RECASTMESHTILE_H
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#define OPENMW_COMPONENTS_DETOURNAVIGATOR_RECASTMESHTILE_H
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#include "tileposition.hpp"
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#include "recastmesh.hpp"
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#include <map>
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#include <memory>
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namespace DetourNavigator
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{
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using RecastMeshTiles = std::map<TilePosition, std::shared_ptr<RecastMesh>>;
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}
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#endif
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@ -0,0 +1,48 @@
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#include "navmesh.hpp"
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#include "detourdebugdraw.hpp"
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#include <components/detournavigator/settings.hpp>
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#include <components/detournavigator/recastmesh.hpp>
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#include <RecastDebugDraw.h>
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#include <osg/Group>
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namespace
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{
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std::vector<float> calculateNormals(const std::vector<float>& vertices, const std::vector<int>& indices)
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{
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std::vector<float> result(indices.size());
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for (std::size_t i = 0, n = indices.size(); i < n; i += 3)
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{
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const float* v0_ptr = &vertices[indices[i] * 3];
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const float* v1_ptr = &vertices[indices[i + 1] * 3];
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const float* v2_ptr = &vertices[indices[i + 2] * 3];
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const osg::Vec3f v0(v0_ptr[0], v0_ptr[1], v0_ptr[2]);
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const osg::Vec3f v1(v1_ptr[0], v1_ptr[1], v1_ptr[2]);
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const osg::Vec3f v2(v2_ptr[0], v2_ptr[1], v2_ptr[2]);
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const osg::Vec3f e0 = v1 - v0;
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const osg::Vec3f e1 = v2 - v0;
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osg::Vec3f normal = e0 ^ e1;
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normal.normalize();
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for (std::size_t j = 0; j < 3; ++j)
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result[i + j] = normal[j];
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}
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return result;
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}
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}
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namespace SceneUtil
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{
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osg::ref_ptr<osg::Group> createRecastMeshGroup(const DetourNavigator::RecastMesh& recastMesh,
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const DetourNavigator::Settings& settings)
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{
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const osg::ref_ptr<osg::Group> group(new osg::Group);
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DebugDraw debugDraw(*group, osg::Vec3f(0, 0, 0), 1.0f / settings.mRecastScaleFactor);
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const auto normals = calculateNormals(recastMesh.getVertices(), recastMesh.getIndices());
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const auto texScale = 1.0f / (settings.mCellSize * 10.0f);
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duDebugDrawTriMesh(&debugDraw, recastMesh.getVertices().data(), recastMesh.getVerticesCount(),
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recastMesh.getIndices().data(), normals.data(), recastMesh.getTrianglesCount(), nullptr, texScale);
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return group;
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}
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}
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@ -0,0 +1,23 @@
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#ifndef OPENMW_COMPONENTS_SCENEUTIL_RECASTMESH_H
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#define OPENMW_COMPONENTS_SCENEUTIL_RECASTMESH_H
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#include <osg/ref_ptr>
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namespace osg
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{
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class Group;
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}
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namespace DetourNavigator
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{
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class RecastMesh;
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struct Settings;
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}
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namespace SceneUtil
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{
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osg::ref_ptr<osg::Group> createRecastMeshGroup(const DetourNavigator::RecastMesh& recastMesh,
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const DetourNavigator::Settings& settings);
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}
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#endif
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