/
ModelPreview.cpp
256 lines (201 loc) · 5.46 KB
/
ModelPreview.cpp
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#include "ModelPreview.h"
#include "../GLWidget.h"
#include "ifilter.h"
#include "iuimanager.h"
#include "imodelcache.h"
#include "i18n.h"
#include "ieclass.h"
#include "math/AABB.h"
#include "modelskin.h"
#include "entitylib.h"
#include "scene/Node.h"
#include "scene/BasicRootNode.h"
#include "wxutil/dialog/MessageBox.h"
#include "string/convert.h"
#include <sstream>
#include "iuimanager.h"
namespace wxutil
{
/* CONSTANTS */
namespace
{
const char* const FUNC_STATIC_CLASS = "func_static";
}
ModelPreview::ModelPreview(wxWindow* parent) :
RenderPreview(parent, false),
_sceneIsReady(false),
_lastModel(""),
_defaultCamDistanceFactor(2.8f)
{}
const std::string& ModelPreview::getModel() const
{
return _model;
}
const std::string& ModelPreview::getSkin() const
{
return _skin;
}
void ModelPreview::setModel(const std::string& model)
{
// Remember the name and mark the scene as "not ready"
_model = model;
_sceneIsReady = false;
if (!_model.empty())
{
// Reset time if the model has changed
if (_model != _lastModel)
{
// Reset preview time
stopPlayback();
}
// Redraw
queueDraw();
}
else
{
stopPlayback();
}
}
void ModelPreview::setSkin(const std::string& skin) {
_skin = skin;
_sceneIsReady = false;
// Redraw
queueDraw();
}
void ModelPreview::setDefaultCamDistanceFactor(float factor)
{
_defaultCamDistanceFactor = factor;
}
void ModelPreview::setupSceneGraph()
{
RenderPreview::setupSceneGraph();
try
{
_rootNode = std::make_shared<scene::BasicRootNode>();
_entity = GlobalEntityModule().createEntity(
GlobalEntityClassManager().findClass(FUNC_STATIC_CLASS));
_rootNode->addChildNode(_entity);
_entity->enable(scene::Node::eHidden);
// This entity is acting as our root node in the scene
getScene()->setRoot(_rootNode);
// Set up the light
_light = GlobalEntityModule().createEntity(
GlobalEntityClassManager().findClass("light"));
Node_getEntity(_light)->setKeyValue("light_radius", "600 600 600");
Node_getEntity(_light)->setKeyValue("origin", "0 0 300");
_rootNode->addChildNode(_light);
}
catch (std::runtime_error&)
{
wxutil::Messagebox::ShowError(fmt::format(_("Unable to setup the preview,\n"
"could not find the entity class {0}"), FUNC_STATIC_CLASS));
}
}
AABB ModelPreview::getSceneBounds()
{
if (!_modelNode)
{
return RenderPreview::getSceneBounds();
}
return _modelNode->localAABB();
}
void ModelPreview::prepareScene()
{
// Clear the flag
_sceneIsReady = true;
// If the model name is empty, release the model
if (_model.empty())
{
if (_modelNode)
{
_entity->removeChildNode(_modelNode);
}
_modelNode.reset();
// Emit the signal carrying an empty pointer
_modelLoadedSignal.emit(model::ModelNodePtr());
return;
}
// Set up the scene
if (!_entity)
{
getScene(); // trigger a setupscenegraph call
}
if (_modelNode)
{
_entity->removeChildNode(_modelNode);
}
_modelNode = GlobalModelCache().getModelNode(_model);
if (_modelNode)
{
_entity->addChildNode(_modelNode);
// Apply the skin
model::ModelNodePtr model = Node_getModel(_modelNode);
if (model)
{
ModelSkin& mSkin = GlobalModelSkinCache().capture(_skin);
model->getIModel().applySkin(mSkin);
}
// Trigger an initial update of the subgraph
GlobalFilterSystem().updateSubgraph(getScene()->root());
if (_lastModel != _model)
{
// Reset the model rotation
resetModelRotation();
// Reset the default view, facing down to the model from diagonally above the bounding box
double distance = _modelNode->localAABB().getRadius() * _defaultCamDistanceFactor;
setViewOrigin(Vector3(1, 1, 1) * distance);
setViewAngles(Vector3(34, 135, 0));
}
_lastModel = _model;
// Done loading, emit the signal
_modelLoadedSignal.emit(model);
}
}
bool ModelPreview::onPreRender()
{
if (!_sceneIsReady)
{
prepareScene();
}
if (_light)
{
Vector3 lightOrigin = _viewOrigin + Vector3(0, 0, 20);
// Position the light just above the camera
Node_getEntity(_light)->setKeyValue("origin", string::to_string(lightOrigin));
// Let the light encompass the object
float radius = (getSceneBounds().getOrigin() - lightOrigin).getLength() * 2.0f;
radius = std::max(radius, 200.f);
std::ostringstream value;
value << radius << ' ' << radius << ' ' << radius;
Node_getEntity(_light)->setKeyValue("light_radius", value.str());
Node_getEntity(_light)->setKeyValue("_color", "0.6 0.6 0.6");
}
return _modelNode != nullptr;
}
void ModelPreview::onModelRotationChanged()
{
if (_entity)
{
// Update the model rotation on the entity
std::ostringstream value;
value << _modelRotation.xx() << ' '
<< _modelRotation.xy() << ' '
<< _modelRotation.xz() << ' '
<< _modelRotation.yx() << ' '
<< _modelRotation.yy() << ' '
<< _modelRotation.yz() << ' '
<< _modelRotation.zx() << ' '
<< _modelRotation.zy() << ' '
<< _modelRotation.zz();
Node_getEntity(_entity)->setKeyValue("rotation", value.str());
}
}
RenderStateFlags ModelPreview::getRenderFlagsFill()
{
return RenderPreview::getRenderFlagsFill() | RENDER_DEPTHWRITE | RENDER_DEPTHTEST;
}
sigc::signal<void, const model::ModelNodePtr&>& ModelPreview::signal_ModelLoaded()
{
return _modelLoadedSignal;
}
} // namespace ui