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Add new combine mode: Inflation 

This mode turn the component to functional nodes instead of mesh construction. The mesh generated before this component will be proportional deformed.
master
huxingyi 2018-11-15 22:01:20 +08:00
parent ab97615bea
commit 889c11ecef
8 changed files with 223 additions and 25 deletions
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3
dust3d.pro
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@ -294,6 +294,9 @@ HEADERS += src/posedocument.h
SOURCES += src/combinemode.cpp
HEADERS += src/combinemode.h
SOURCES += src/meshinflate.cpp
HEADERS += src/meshinflate.h
SOURCES += src/main.cpp
HEADERS += src/version.h

7
src/combinemode.h
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@ -6,6 +6,7 @@ enum class CombineMode
{
Normal = 0,
Inversion,
Inflation,
Count
};
CombineMode CombineModeFromString(const char *modeString);
@ -17,6 +18,8 @@ CombineMode CombineModeFromString(const char *modeString) \
return CombineMode::Normal; \
if (mode == "Inversion") \
return CombineMode::Inversion; \
if (mode == "Inflation") \
return CombineMode::Inflation; \
return CombineMode::Normal; \
}
const char *CombineModeToString(CombineMode mode);
@ -28,6 +31,8 @@ const char *CombineModeToString(CombineMode mode) \
return "Normal"; \
case CombineMode::Inversion: \
return "Inversion"; \
case CombineMode::Inflation: \
return "Inflation"; \
default: \
return "Normal"; \
} \
@ -41,6 +46,8 @@ QString CombineModeToDispName(CombineMode mode) \
return QObject::tr("Normal"); \
case CombineMode::Inversion: \
return QObject::tr("Inversion"); \
case CombineMode::Inflation: \
return QObject::tr("Inflation"); \
default: \
return QObject::tr("Normal"); \
} \

84
src/meshgenerator.cpp
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@ -14,6 +14,7 @@
#include "imageforever.h"
#include "material.h"
#include "trianglesourcenoderesolve.h"
#include "meshinflate.h"
bool MeshGenerator::m_enableDebug = false;
PositionMap<int> *MeshGenerator::m_forMakePositionKey = new PositionMap<int>;
@ -225,7 +226,7 @@ bool MeshGenerator::checkIsPartDirty(QString partId)
return isTrueValueString(valueOfKeyInMapOrEmpty(findPart->second, "dirty"));
}
void *MeshGenerator::combinePartMesh(QString partId)
void *MeshGenerator::combinePartMesh(QString partId, std::vector<std::pair<QVector3D, float>> *balls)
{
auto findPart = m_snapshot->parts.find(partId);
if (findPart == m_snapshot->parts.end()) {
@ -306,6 +307,13 @@ void *MeshGenerator::combinePartMesh(QString partId)
nodeInfo.position = QVector3D(x, y, z);
nodeInfo.radius = radius;
nodeInfo.boneMark = boneMark;
if (nullptr != balls) {
balls->push_back({QVector3D(x, y, z), radius});
if (xMirrored) {
balls->push_back({QVector3D(-x, y, z), radius});
}
}
}
std::set<std::pair<QString, QString>> edges;
for (const auto &edgeId: m_partEdgeIds[partId]) {
@ -499,12 +507,10 @@ bool MeshGenerator::checkIsComponentDirty(QString componentId)
return isDirty;
}
void *MeshGenerator::combineComponentMesh(QString componentId, bool *inverse)
void *MeshGenerator::combineComponentMesh(QString componentId, CombineMode *combineMode, std::vector<std::pair<QVector3D, float>> *inflateBalls)
{
QUuid componentIdNotAsString;
*inverse = false;
const std::map<QString, QString> *component = &m_snapshot->rootComponent;
if (componentId != QUuid().toString()) {
componentIdNotAsString = QUuid(componentId);
@ -516,10 +522,19 @@ void *MeshGenerator::combineComponentMesh(QString componentId, bool *inverse)
component = &findComponent->second;
}
CombineMode combineMode = CombineModeFromString(valueOfKeyInMapOrEmpty(*component, "combineMode").toUtf8().constData());
if (combineMode == CombineMode::Inversion)
*inverse = true;
*combineMode = CombineModeFromString(valueOfKeyInMapOrEmpty(*component, "combineMode").toUtf8().constData());
if (*combineMode == CombineMode::Inflation) {
if (m_dirtyComponentIds.find(componentId) == m_dirtyComponentIds.end()) {
auto findCacheInflateBalls = m_cacheContext->componentInflateBalls.find(componentId);
if (findCacheInflateBalls != m_cacheContext->componentInflateBalls.end()) {
*inflateBalls = findCacheInflateBalls->second;
return nullptr;
}
}
}
if (*combineMode != CombineMode::Inflation) {
if (m_dirtyComponentIds.find(componentId) == m_dirtyComponentIds.end()) {
auto findCachedMesh = m_cacheContext->componentCombinableMeshs.find(componentId);
if (findCachedMesh != m_cacheContext->componentCombinableMeshs.end() &&
@ -528,6 +543,7 @@ void *MeshGenerator::combineComponentMesh(QString componentId, bool *inverse)
return cloneCombinableMesh(findCachedMesh->second);
}
}
}
bool smoothSeam = false;
float smoothSeamFactor = 0.0;
@ -553,17 +569,47 @@ void *MeshGenerator::combineComponentMesh(QString componentId, bool *inverse)
QString linkDataType = valueOfKeyInMapOrEmpty(*component, "linkDataType");
if ("partId" == linkDataType) {
QString partId = valueOfKeyInMapOrEmpty(*component, "linkData");
resultMesh = combinePartMesh(partId);
std::vector<std::pair<QVector3D, float>> partBalls;
resultMesh = combinePartMesh(partId, &partBalls);
if (*combineMode == CombineMode::Inflation) {
deleteCombinableMesh(resultMesh);
resultMesh = nullptr;
inflateBalls->insert(inflateBalls->end(), partBalls.begin(), partBalls.end());
} else {
for (const auto &bmeshVertex: m_cacheContext->partBmeshVertices[partId]) {
verticesSources.addPosition(bmeshVertex.first.x(), bmeshVertex.first.y(), bmeshVertex.first.z(),
bmeshVertex);
}
}
} else {
for (const auto &childId: valueOfKeyInMapOrEmpty(*component, "children").split(",")) {
if (childId.isEmpty())
continue;
bool childInverse = false;
void *childCombinedMesh = combineComponentMesh(childId, &childInverse);
CombineMode childCombineMode = CombineMode::Normal;
std::vector<std::pair<QVector3D, float>> childInflateBalls;
void *childCombinedMesh = combineComponentMesh(childId, &childCombineMode, &childInflateBalls);
inflateBalls->insert(inflateBalls->end(), childInflateBalls.begin(), childInflateBalls.end());
if (childCombineMode == CombineMode::Inflation) {
deleteCombinableMesh(childCombinedMesh);
childCombinedMesh = nullptr;
if (nullptr == resultMesh)
continue;
std::vector<std::pair<QVector3D, QVector3D>> inflatedVertices;
void *inflatedMesh = meshInflate(resultMesh, childInflateBalls, inflatedVertices);
deleteCombinableMesh(resultMesh);
resultMesh = inflatedMesh;
for (const auto &item: inflatedVertices) {
const auto &oldPosition = item.first;
const auto &newPosition = item.second;
std::pair<QVector3D, std::pair<QUuid, QUuid>> source;
if (verticesSources.findPosition(oldPosition.x(), oldPosition.y(), oldPosition.z(), &source)) {
verticesSources.removePosition(oldPosition.x(), oldPosition.y(), oldPosition.z());
source.first = newPosition;
verticesSources.addPosition(newPosition.x(), newPosition.y(), newPosition.z(), source);
}
}
continue;
}
for (const auto &positionIt: m_cacheContext->componentPositions[childId]) {
positionsBeforeCombination.addPosition(positionIt.x(), positionIt.y(), positionIt.z(), true);
}
@ -573,13 +619,13 @@ void *MeshGenerator::combineComponentMesh(QString componentId, bool *inverse)
if (nullptr == childCombinedMesh)
continue;
if (nullptr == resultMesh) {
if (childInverse) {
if (childCombineMode == CombineMode::Inversion) {
deleteCombinableMesh(childCombinedMesh);
} else {
resultMesh = childCombinedMesh;
}
} else {
void *newResultMesh = childInverse ? diffCombinableMeshs(resultMesh, childCombinedMesh) : unionCombinableMeshs(resultMesh, childCombinedMesh);
void *newResultMesh = childCombineMode == CombineMode::Inversion ? diffCombinableMeshs(resultMesh, childCombinedMesh) : unionCombinableMeshs(resultMesh, childCombinedMesh);
deleteCombinableMesh(childCombinedMesh);
if (nullptr != newResultMesh) {
deleteCombinableMesh(resultMesh);
@ -644,6 +690,8 @@ void *MeshGenerator::combineComponentMesh(QString componentId, bool *inverse)
}
}
m_cacheContext->componentInflateBalls[componentId] = *inflateBalls;
m_cacheContext->updateComponentCombinableMesh(componentId, resultMesh);
auto &cachedComponentPositions = m_cacheContext->componentPositions[componentId];
cachedComponentPositions.clear();
@ -713,6 +761,13 @@ void MeshGenerator::generate()
}
it++;
}
for (auto it = m_cacheContext->componentInflateBalls.begin(); it != m_cacheContext->componentInflateBalls.end(); ) {
if (m_snapshot->components.find(it->first) == m_snapshot->components.end()) {
it = m_cacheContext->componentInflateBalls.erase(it);
continue;
}
it++;
}
for (auto it = m_cacheContext->componentVerticesSources.begin(); it != m_cacheContext->componentVerticesSources.end(); ) {
if (m_snapshot->components.find(it->first) == m_snapshot->components.end()) {
it = m_cacheContext->componentVerticesSources.erase(it);
@ -733,8 +788,9 @@ void MeshGenerator::generate()
int resultMeshId = 0;
bool inverse = false;
void *combinedMesh = combineComponentMesh(QUuid().toString(), &inverse);
CombineMode combineMode;
std::vector<std::pair<QVector3D, float>> inflateBalls;
void *combinedMesh = combineComponentMesh(QUuid().toString(), &combineMode, &inflateBalls);
if (nullptr != combinedMesh) {
resultMeshId = convertFromCombinableMesh(m_meshliteContext, combinedMesh);
deleteCombinableMesh(combinedMesh);

6
src/meshgenerator.h
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@ -11,6 +11,7 @@
#include "meshloader.h"
#include "outcome.h"
#include "positionmap.h"
#include "combinemode.h"
class GeneratedCacheContext
{
@ -23,6 +24,7 @@ public:
std::map<QString, std::vector<QVector3D>> componentPositions;
std::map<QString, PositionMap<std::pair<QVector3D, std::pair<QUuid, QUuid>>>> componentVerticesSources;
std::map<QString, QString> partMirrorIdMap;
std::map<QString, std::vector<std::pair<QVector3D, float>>> componentInflateBalls;
void updateComponentCombinableMesh(QString componentId, void *mesh);
};
@ -78,8 +80,8 @@ private:
void checkDirtyFlags();
bool checkIsComponentDirty(QString componentId);
bool checkIsPartDirty(QString partId);
void *combineComponentMesh(QString componentId, bool *inverse);
void *combinePartMesh(QString partId);
void *combineComponentMesh(QString componentId, CombineMode *combineMode, std::vector<std::pair<QVector3D, float>> *inflateBalls);
void *combinePartMesh(QString partId, std::vector<std::pair<QVector3D, float>> *balls=nullptr);
};
#endif

50
src/meshinflate.cpp Normal file
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@ -0,0 +1,50 @@
#include <QDebug>
#include <set>
#include "meshinflate.h"
#include "meshutil.h"
void *meshInflate(void *combinableMesh, const std::vector<std::pair<QVector3D, float>> &inflateBalls, std::vector<std::pair<QVector3D, QVector3D>> &inflatedVertices)
{
std::vector<QVector3D> oldPositions;
std::vector<QVector3D> newPositions;
std::vector<std::vector<int>> faces;
std::set<int> changedVertices;
loadCombinableMeshVerticesPositionsAndFacesIndices(combinableMesh, oldPositions, faces);
newPositions = oldPositions;
std::vector<float> inflateBallRadius2s(inflateBalls.size());
for (size_t i = 0; i < inflateBalls.size(); ++i) {
const auto &radius = inflateBalls[i].second;
inflateBallRadius2s[i] = radius * radius;
}
for (size_t i = 0; i < oldPositions.size(); ++i) {
const auto &oldPos = oldPositions[i];
QVector3D sumOfNewPos;
size_t pushedByBallNum = 0;
for (size_t j = 0; j < inflateBalls.size(); ++j) {
const auto &ball = inflateBalls[j];
const auto &ballPos = ball.first;
const auto &ballRadius = std::max(ball.second, (float)0.00001);
const auto ballToPosVec = oldPos - ballPos;
if (ballToPosVec.lengthSquared() > inflateBallRadius2s[j])
continue;
const auto distance = 1.0 - ballToPosVec.length() / ballRadius;
const auto smoothedDist = 3.0 * std::pow(distance, 2) - 2.0 * std::pow(distance, 3);
const auto newPosPushByBall = oldPos + ballToPosVec * smoothedDist;
sumOfNewPos += newPosPushByBall;
++pushedByBallNum;
}
if (0 == pushedByBallNum)
continue;
newPositions[i] = sumOfNewPos / pushedByBallNum;
changedVertices.insert(i);
}
for (const auto &index: changedVertices) {
inflatedVertices.push_back({oldPositions[index], newPositions[index]});
}
return buildCombinableMeshFromVerticesPositionsAndFacesIndices(newPositions, faces);
}

8
src/meshinflate.h Normal file
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@ -0,0 +1,8 @@
#ifndef DUST3D_MESH_INFLATE_H
#define DUST3D_MESH_INFLATE_H
#include <vector>
#include <QVector3D>
void *meshInflate(void *combinableMesh, const std::vector<std::pair<QVector3D, float>> &inflateBalls, std::vector<std::pair<QVector3D, QVector3D>> &inflatedVertices);
#endif

70
src/meshutil.cpp
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@ -52,6 +52,25 @@ void loadMeshVerticesPositions(void *meshliteContext, int meshId, std::vector<QV
delete[] vertexPositions;
}
template <class Kernel>
typename CGAL::Surface_mesh<typename Kernel::Point_3> *buildCgalMesh(const std::vector<QVector3D> &positions, const std::vector<std::vector<int>> &indices)
{
typename CGAL::Surface_mesh<typename Kernel::Point_3> *mesh = new typename CGAL::Surface_mesh<typename Kernel::Point_3>;
std::map<int, typename CGAL::Surface_mesh<typename Kernel::Point_3>::Vertex_index> oldToNewMap;
for (int i = 0; i < (int)positions.size(); ++i) {
const auto &pos = positions[i];
oldToNewMap[i] = mesh->add_vertex(typename Kernel::Point_3(pos.x(), pos.y(), pos.z()));
}
for (const auto &face: indices) {
std::vector<typename CGAL::Surface_mesh<typename Kernel::Point_3>::Vertex_index> faceVertexIndices;
for (const auto &index: face) {
faceVertexIndices.push_back(oldToNewMap[index]);
}
mesh->add_face(faceVertexIndices);
}
return mesh;
}
template <class Kernel>
typename CGAL::Surface_mesh<typename Kernel::Point_3> *makeCgalMeshFromMeshlite(void *meshlite, int meshId)
{
@ -458,3 +477,54 @@ void *convertToCombinableConvexHullMesh(void *meshliteContext, int meshId)
ExactMesh *mesh = makeCgalConvexHullMeshFromMeshlite<ExactKernel>(meshliteContext, meshId);
return (void *)mesh;
}
void loadCombinableMeshVerticesPositionsAndFacesIndices(void *mesh, std::vector<QVector3D> &positions, std::vector<std::vector<int>> &indices)
{
ExactMesh *exactMesh = (ExactMesh *)mesh;
if (nullptr == exactMesh)
return;
for (auto vertexIt = exactMesh->vertices_begin(); vertexIt != exactMesh->vertices_end(); vertexIt++) {
auto point = exactMesh->point(*vertexIt);
float x = (float)CGAL::to_double(point.x());
float y = (float)CGAL::to_double(point.y());
float z = (float)CGAL::to_double(point.z());
if (std::isnan(x) || std::isinf(x))
x = 0;
if (std::isnan(y) || std::isinf(y))
y = 0;
if (std::isnan(z) || std::isinf(z))
z = 0;
positions.push_back(QVector3D(x, y, z));
}
typename CGAL::Surface_mesh<ExactKernel::Point_3>::Face_range faceRage = exactMesh->faces();
typename CGAL::Surface_mesh<ExactKernel::Point_3>::Face_range::iterator faceIt;
for (faceIt = faceRage.begin(); faceIt != faceRage.end(); faceIt++) {
CGAL::Vertex_around_face_iterator<typename CGAL::Surface_mesh<ExactKernel::Point_3>> vbegin, vend;
std::vector<int> faceIndices;
for (boost::tie(vbegin, vend) = CGAL::vertices_around_face(exactMesh->halfedge(*faceIt), *exactMesh);
vbegin != vend;
++vbegin){
faceIndices.push_back(*vbegin);
}
indices.push_back(faceIndices);
}
}
void *buildCombinableMeshFromVerticesPositionsAndFacesIndices(const std::vector<QVector3D> &positions, const std::vector<std::vector<int>> &indices)
{
ExactMesh *mesh = nullptr;
if (indices.empty())
return nullptr;
mesh = buildCgalMesh<ExactKernel>(positions, indices);
if (nullptr == mesh) {
return mesh;
}
if (CGAL::Polygon_mesh_processing::does_self_intersect(*mesh)) {
qDebug() << "CGAL::Polygon_mesh_processing::does_self_intersect";
delete mesh;
return nullptr;
}
return (void *)mesh;
}

2
src/meshutil.h
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@ -21,5 +21,7 @@ void *cloneCombinableMesh(void *mesh);
void *convertToCombinableConvexHullMesh(void *meshliteContext, int meshId);
void loadMeshVerticesPositions(void *meshliteContext, int meshId, std::vector<QVector3D> &positions);
void loadCombinableMeshVerticesPositions(void *mesh, std::vector<QVector3D> &positions);
void loadCombinableMeshVerticesPositionsAndFacesIndices(void *mesh, std::vector<QVector3D> &positions, std::vector<std::vector<int>> &indices);
void *buildCombinableMeshFromVerticesPositionsAndFacesIndices(const std::vector<QVector3D> &positions, const std::vector<std::vector<int>> &indices);
#endif