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mudbox_deformers_spherify_deformer.cpp
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mudbox_deformers_spherify_deformer.cpp
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#include "mudbox_deformers_spherify_deformer.h"
#include "mudbox_deformers_util.h"
#include <cassert>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <QtCore/Qt>
#include <QtGui/QGroupBox>
#include <QtGui/QHBoxLayout>
#include <QtGui/QLabel>
#include <QtGui/QMessageBox>
#include <QtGui/QPushButton>
#include <QtGui/QSlider>
#include <QtGui/QVBoxLayout>
using mudbox::Attribute;
using mudbox::AxisAlignedBoundingBox;
using mudbox::Geometry;
using mudbox::Interface;
using mudbox::Kernel;
using mudbox::Mesh;
using mudbox::MeshChange;
using mudbox::MeshRenderer;
using mudbox::Node;
using mudbox::NodeEventType;
using mudbox::Scene;
using mudbox::SceneMembershipEventNotifier;
using mudbox::SubdivisionLevel;
using mudbox::TreeNode;
using mudbox::Vector;
using mudbox::aevent;
using mudbox::afloatr;
using mudbox::aptr;
using mudbox::etEventTriggered;
using mudbox::etPointerContentChanged;
using mudbox::etPointerTargetDestroyed;
using mudbox::etValueChanged;
using std::malloc;
using std::strlen;
using std::vector;
// NOTE: (sonictk) For Mudbox RTTI system
IMPLEMENT_CLASS(SpherifyDeformer, TreeNode, SPHERIFY_DEFORMER_NAME)
const char *SpherifyDeformer::displayName = SPHERIFY_DEFORMER_NAME;
const float SpherifyDeformer::defaultWeight = 0.0f;
SpherifyDeformer::SpherifyDeformer() : Node(SPHERIFY_DEFORMER_NAME),
spherifyWeight(this, "Spherify weight"),
targetMesh(this, "Target mesh"),
applyEvent(this, "Apply"),
deleteEvent(this, "Delete"),
resetEvent(this, "Reset")
{
// NOTE: (sonictk) Assign a unique name to this node, starting from 1.
NUM_OF_SPHERIFY_DEFORMER_NODES++;
int nameLen = int(strlen(SPHERIFY_DEFORMER_NAME)) + findNumberOfDigits(NUM_OF_SPHERIFY_DEFORMER_NODES);
char *nodeName = (char *)malloc(sizeof(char) * nameLen + 1);
sprintf(nodeName, "%s%d", SPHERIFY_DEFORMER_NAME, NUM_OF_SPHERIFY_DEFORMER_NODES);
QString nodeNameQS(nodeName);
SetName(nodeNameQS);
SetDisplayName(QString(displayName));
free(nodeName);
targetMesh.m_sNullString = QString("Select a mesh");
spherifyWeight.SetValue(defaultWeight);
// TODO: (sonictk) Connect the scene member event to the global one so that
// we can catch the deletion event of the target mesh if it happens and delete
// this node as well
// sceneEvent.Connect(Kernel()->Scene()->SceneMembershipEvent);
}
QWidget *SpherifyDeformer::CreatePropertiesWindow(QWidget *parent)
{
unsigned int numOfGeos = Kernel()->Scene()->GeometryCount();
if (numOfGeos == 0) {
Kernel()->Interface()->MessageBox(Interface::msgError,
"No meshes available to deform!",
"There are no meshes in the scene to deform!");
return NULL;
}
Geometry *activeGeo = Kernel()->Scene()->ActiveGeometry();
if (activeGeo != NULL) {
targetMesh = activeGeo;
updateOriginalPointPositions();
}
QWidget *propertiesWidget = TreeNode::CreatePropertiesWindow(parent);
// NOTE: (sonictk) Since stack alloc crashes after widget closure, we have to allocate on heap.
QVBoxLayout *mainLayout = new QVBoxLayout;
QPushButton *closeBtn = new QPushButton("Close");
mainLayout->addWidget(closeBtn);
// NOTE: (sonictk) Without the widget holder, nothing shows up
QWidget *widgetHolder = new QWidget;
widgetHolder->setLayout(mainLayout);
propertiesWidget->connect(closeBtn,
SIGNAL(released()),
propertiesWidget,
SLOT(reject()));
propertiesWidget->setWindowTitle(DisplayName());
propertiesWidget->layout()->addWidget(widgetHolder);
propertiesWidget->show();
// NOTE: (sonictk) We do this becauase the Mudbox widget attribute holder doesn't
// resize to its contents automatically
propertiesWidget->setMinimumHeight(propertiesWidget->height() + 50);
return propertiesWidget;
}
void SpherifyDeformer::updateOriginalPointPositions()
{
origPtPositions.clear();
SubdivisionLevel *currentSubdivisionLevel = targetMesh->ActiveLevel();
AxisAlignedBoundingBox bBox = currentSubdivisionLevel->BoundingBox(false);
unsigned int numOfVertices = currentSubdivisionLevel->VertexCount();
for (unsigned int i=0; i < numOfVertices; ++i) {
Vector pos = currentSubdivisionLevel->VertexPosition(i);
origPtPositions.push_back(pos);
}
origBBoxMaxLength = bBox.Size();
}
void SpherifyDeformer::spherifyCB(float weight)
{
SubdivisionLevel *currentSubdivisionLevel = targetMesh->ActiveLevel();
unsigned int numOfVertices = currentSubdivisionLevel->VertexCount();
// NOTE: (sonictk) If the vertices no longer match, re-cache the mesh point positions.
if (numOfVertices != (unsigned int)origPtPositions.size()) {
Kernel()->Interface()->HUDMessageShow("Mis-matching vertex counts! Please "
"make sure you're on the same subd level "
"that you started with!");
return;
}
for (unsigned int i=0; i < numOfVertices; ++i) {
Vector origPos = origPtPositions[i];
Vector newPos = Vector(origPos);
newPos.SetLength(origBBoxMaxLength);
Vector finalPos = lerp(origPos, newPos, weight);
currentSubdivisionLevel->SetVertexPosition(i, finalPos);
}
currentSubdivisionLevel->ApplyChanges(true);
markSubdivisionLevelDirty(currentSubdivisionLevel);
Kernel()->ViewPort()->Redraw();
}
void SpherifyDeformer::OnNodeEvent(const Attribute &attribute, NodeEventType eventType)
{
if (attribute == targetMesh) {
switch (eventType) {
case etPointerTargetDestroyed:
origPtPositions.clear();
origBBoxMaxLength = 0.0f;
break;
case etPointerContentChanged:
case etValueChanged:
if (targetMesh) {
updateOriginalPointPositions();
}
break;
default:
break;
}
} else if (attribute == spherifyWeight) {
switch (eventType) {
case etValueChanged: {
if (!targetMesh) {
Kernel()->Interface()->HUDMessageShow("Please select a mesh first from the drop-down menu!");
return;
}
float weight = spherifyWeight.Value();
if (areFloatsEqual(weight, 0.0f)) {
return;
}
spherifyCB(weight);
break;
}
case etPointerTargetDestroyed:
NUM_OF_SPHERIFY_DEFORMER_NODES--;
break;
default:
break;
}
} else if (attribute == applyEvent && eventType == etEventTriggered && targetMesh) {
SubdivisionLevel *currentSubdivisionLevel = targetMesh->ActiveLevel();
updateSubdivisionLevel(currentSubdivisionLevel);
return;
} else if (attribute == resetEvent && eventType == etEventTriggered) {
if (targetMesh) {
SubdivisionLevel *currentSubdivisionLevel = targetMesh->ActiveLevel();
unsigned int numOfVertices = currentSubdivisionLevel->VertexCount();
if (numOfVertices != (unsigned int)origPtPositions.size()) {
Kernel()->Interface()->HUDMessageShow("Mis-matching vertex counts! "
"Unable to reset the original "
"mesh point positions!");
return;
}
for (unsigned int i=0; i < numOfVertices; ++i) {
Vector origPos = origPtPositions[i];
currentSubdivisionLevel->SetVertexPosition(i, origPos);
}
updateSubdivisionLevel(currentSubdivisionLevel);
}
spherifyWeight.SetValue(defaultWeight);
} else if (attribute == deleteEvent && eventType == etEventTriggered) {
if (targetMesh) {
SubdivisionLevel *currentSubdivisionLevel = targetMesh->ActiveLevel();
unsigned int numOfVertices = currentSubdivisionLevel->VertexCount();
if (numOfVertices != (unsigned int)origPtPositions.size()) {
Kernel()->Interface()->HUDMessageShow("Mis-matching vertex counts! "
"Unable to restore the original "
"mesh point positions!");
return;
}
for (unsigned int i=0; i < numOfVertices; ++i) {
Vector origPos = origPtPositions[i];
currentSubdivisionLevel->SetVertexPosition(i, origPos);
}
updateSubdivisionLevel(currentSubdivisionLevel);
}
// NOTE: (sonictk) Remove the node from the graph first otherwise children
// will have invalid sibling ptrs.
Kernel()->Scene()->RemoveChild(this);
// NOTE: (sonictk) If the UI is not refreshed before ``this`` is deleted,
// Mudbox crashes. Guess the UI holds a reference to the ``TreeNode`` class
// instance or something. Wonderful.
Kernel()->Interface()->RefreshUI();
delete this;
}
}