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CamWnd.cpp
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CamWnd.cpp
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#include "CamWnd.h"
#include "igl.h"
#include "ibrush.h"
#include "iclipper.h"
#include "iuimanager.h"
#include "ieventmanager.h"
#include "imainframe.h"
#include "itextstream.h"
#include <time.h>
#include <fmt/format.h>
#include "util/ScopedBoolLock.h"
#include "iselectiontest.h"
#include "selectionlib.h"
#include "gamelib.h"
#include "map/Map.h"
#include "CameraSettings.h"
#include "GlobalCamera.h"
#include "render/frontend/RenderableCollectionWalker.h"
#include "wxutil/MouseButton.h"
#include "registry/adaptors.h"
#include "selection/OccludeSelector.h"
#include "selection/Device.h"
#include "selection/SelectionTest.h"
#include "debugging/debugging.h"
#include <wx/sizer.h>
#include "util/ScopedBoolLock.h"
#include <functional>
#include <sigc++/retype_return.h>
#include "render/VectorLightList.h"
namespace ui
{
namespace
{
const std::size_t MSEC_PER_FRAME = 16;
const std::string FAR_CLIP_IN_TEXT = "Move far clip plane closer";
const std::string FAR_CLIP_OUT_TEXT = "Move far clip plane further away";
const std::string FAR_CLIP_DISABLED_TEXT = " (currently disabled in preferences)";
const char* const RKEY_SELECT_EPSILON = "user/ui/selectionEpsilon";
}
class ObjectFinder :
public scene::NodeVisitor
{
scene::INodePtr _node;
SelectionTest& _selectionTest;
// To store the best intersection candidate
SelectionIntersection _bestIntersection;
public:
// Constructor
ObjectFinder(SelectionTest& test) :
_selectionTest(test)
{}
// Return the found node
const scene::INodePtr& getNode() const {
return _node;
}
// The visitor function
bool pre(const scene::INodePtr& node) {
// Check if the node is filtered
if (node->visible()) {
SelectionTestablePtr selectionTestable = Node_getSelectionTestable(node);
if (selectionTestable != NULL) {
bool occluded;
selection::OccludeSelector selector(_bestIntersection, occluded);
selectionTestable->testSelect(selector, _selectionTest);
if (occluded) {
_node = node;
}
}
}
else {
return false; // don't traverse filtered nodes
}
return true;
}
};
inline Vector2 windowvector_for_widget_centre(wxutil::GLWidget& widget)
{
wxSize size = widget.GetSize();
return Vector2(static_cast<float>(size.GetWidth() / 2), static_cast<float>(size.GetHeight() / 2));
}
class FloorHeightWalker :
public scene::NodeVisitor
{
float _current;
float& _bestUp;
float& _bestDown;
public:
FloorHeightWalker(float current, float& bestUp, float& bestDown) :
_current(current),
_bestUp(bestUp),
_bestDown(bestDown)
{
_bestUp = game::current::getValue<float>("/defaults/maxWorldCoord");
_bestDown = -game::current::getValue<float>("/defaults/maxWorldCoord");
}
bool pre(const scene::INodePtr& node) {
if (!node->visible()) return false; // don't traverse hidden nodes
if (Node_isBrush(node)) // this node is a floor
{
const AABB& aabb = node->worldAABB();
float floorHeight = aabb.origin.z() + aabb.extents.z();
if (floorHeight > _current && floorHeight < _bestUp) {
_bestUp = floorHeight;
}
if (floorHeight < _current && floorHeight > _bestDown) {
_bestDown = floorHeight;
}
return false;
}
return true;
}
};
// ---------- CamWnd Implementation --------------------------------------------------
CamWnd::CamWnd(wxWindow* parent) :
MouseToolHandler(IMouseToolGroup::Type::CameraView),
_mainWxWidget(loadNamedPanel(parent, "CamWndPanel")),
_id(++_maxId),
_view(true),
_camera(&_view, Callback(std::bind(&CamWnd::queueDraw, this))),
_cameraView(_camera, &_view, Callback(std::bind(&CamWnd::update, this))),
_drawing(false),
_freeMoveEnabled(false),
_wxGLWidget(new wxutil::GLWidget(_mainWxWidget, std::bind(&CamWnd::onRender, this), "CamWnd")),
_timer(this),
_timerLock(false)
{
Connect(wxEVT_TIMER, wxTimerEventHandler(CamWnd::onFrame), NULL, this);
constructGUIComponents();
// Deactivate all commands, just to make sure
disableDiscreteMoveEvents();
disableFreeMoveEvents();
// Connect the mouse button events
_wxGLWidget->Connect(wxEVT_LEFT_DOWN, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_LEFT_DCLICK, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_LEFT_UP, wxMouseEventHandler(CamWnd::onGLMouseButtonRelease), NULL, this);
_wxGLWidget->Connect(wxEVT_RIGHT_DOWN, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_RIGHT_DCLICK, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_RIGHT_UP, wxMouseEventHandler(CamWnd::onGLMouseButtonRelease), NULL, this);
_wxGLWidget->Connect(wxEVT_MIDDLE_DOWN, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_MIDDLE_DCLICK, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_MIDDLE_UP, wxMouseEventHandler(CamWnd::onGLMouseButtonRelease), NULL, this);
_wxGLWidget->Connect(wxEVT_AUX1_DOWN, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_AUX1_DCLICK, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_AUX1_UP, wxMouseEventHandler(CamWnd::onGLMouseButtonRelease), NULL, this);
_wxGLWidget->Connect(wxEVT_AUX2_DOWN, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_AUX2_DCLICK, wxMouseEventHandler(CamWnd::onGLMouseButtonPress), NULL, this);
_wxGLWidget->Connect(wxEVT_AUX2_UP, wxMouseEventHandler(CamWnd::onGLMouseButtonRelease), NULL, this);
// Now add the handlers for the non-freelook mode, the events are activated by this
addHandlersMove();
// Clicks are eaten when the FreezePointer is active, request to receive them
_freezePointer.connectMouseEvents(
std::bind(&CamWnd::onGLMouseButtonPress, this, std::placeholders::_1),
std::bind(&CamWnd::onGLMouseButtonRelease, this, std::placeholders::_1));
// Subscribe to the global scene graph update
GlobalSceneGraph().addSceneObserver(this);
_glExtensionsInitialisedNotifier = GlobalRenderSystem().signal_extensionsInitialised().connect(
sigc::mem_fun(this, &CamWnd::onGLExtensionsInitialised));
}
wxWindow* CamWnd::getMainWidget() const
{
return _mainWxWidget;
}
void CamWnd::constructToolbar()
{
// If lighting is not available, grey out the lighting button
wxToolBar* camToolbar = findNamedObject<wxToolBar>(_mainWxWidget, "CamToolbar");
const wxToolBarToolBase* wireframeBtn = getToolBarToolByLabel(camToolbar, "wireframeBtn");
const wxToolBarToolBase* flatShadeBtn = getToolBarToolByLabel(camToolbar, "flatShadeBtn");
const wxToolBarToolBase* texturedBtn = getToolBarToolByLabel(camToolbar, "texturedBtn");
const wxToolBarToolBase* lightingBtn = getToolBarToolByLabel(camToolbar, "lightingBtn");
if (!GlobalOpenGL().shaderProgramsAvailable())
{
//lightingBtn->set_sensitive(false);
camToolbar->EnableTool(lightingBtn->GetId(), false);
}
// Listen for render-mode changes, and set the correct active button to
// start with.
getCameraSettings()->signalRenderModeChanged().connect(
sigc::mem_fun(this, &CamWnd::updateActiveRenderModeButton)
);
updateActiveRenderModeButton();
// Connect button signals
_mainWxWidget->GetParent()->Connect(wireframeBtn->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(CamWnd::onRenderModeButtonsChanged), NULL, this);
_mainWxWidget->GetParent()->Connect(flatShadeBtn->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(CamWnd::onRenderModeButtonsChanged), NULL, this);
_mainWxWidget->GetParent()->Connect(texturedBtn->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(CamWnd::onRenderModeButtonsChanged), NULL, this);
_mainWxWidget->GetParent()->Connect(lightingBtn->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(CamWnd::onRenderModeButtonsChanged), NULL, this);
// Far clip buttons.
wxToolBar* miscToolbar = static_cast<wxToolBar*>(_mainWxWidget->FindWindow("MiscToolbar"));
const wxToolBarToolBase* clipPlaneInButton = getToolBarToolByLabel(miscToolbar, "clipPlaneInButton");
const wxToolBarToolBase* clipPlaneOutButton = getToolBarToolByLabel(miscToolbar, "clipPlaneOutButton");
_mainWxWidget->GetParent()->Connect(clipPlaneInButton->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(CamWnd::onFarClipPlaneInClick), NULL, this);
_mainWxWidget->GetParent()->Connect(clipPlaneOutButton->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(CamWnd::onFarClipPlaneOutClick), NULL, this);
setFarClipButtonSensitivity();
GlobalRegistry().signalForKey(RKEY_ENABLE_FARCLIP).connect(
sigc::mem_fun(*this, &CamWnd::setFarClipButtonSensitivity)
);
const wxToolBarToolBase* startTimeButton = getToolBarToolByLabel(miscToolbar, "startTimeButton");
const wxToolBarToolBase* stopTimeButton = getToolBarToolByLabel(miscToolbar, "stopTimeButton");
_mainWxWidget->GetParent()->Connect(startTimeButton->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(CamWnd::onStartTimeButtonClick), NULL, this);
_mainWxWidget->GetParent()->Connect(stopTimeButton->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(CamWnd::onStopTimeButtonClick), NULL, this);
// Stop time, initially
stopRenderTime();
// Handle hiding or showing the toolbar (Preferences/Settings/Camera page)
updateToolbarVisibility();
GlobalRegistry().signalForKey(RKEY_SHOW_CAMERA_TOOLBAR).connect(
sigc::mem_fun(this, &CamWnd::updateToolbarVisibility)
);
}
void CamWnd::updateToolbarVisibility()
{
bool visible = getCameraSettings()->showCameraToolbar();
_mainWxWidget->FindWindow("CamToolbar")->Show(visible);
_mainWxWidget->FindWindow("MiscToolbar")->Show(visible);
// WxWidgets/GTK doesn't seem to automatically refresh the layout when we
// hide/show the toolbars
_mainWxWidget->GetSizer()->Layout();
}
void CamWnd::onGLExtensionsInitialised()
{
// If lighting is not available, grey out the lighting button
wxToolBar* camToolbar = findNamedObject<wxToolBar>(_mainWxWidget, "CamToolbar");
const wxToolBarToolBase* lightingBtn = getToolBarToolByLabel(camToolbar, "lightingBtn");
camToolbar->EnableTool(lightingBtn->GetId(), GlobalOpenGL().shaderProgramsAvailable());
}
void CamWnd::setFarClipButtonSensitivity()
{
// Only enabled if cubic clipping is enabled.
bool enabled = registry::getValue<bool>(RKEY_ENABLE_FARCLIP, true);
wxToolBar* miscToolbar = static_cast<wxToolBar*>(_mainWxWidget->FindWindow("MiscToolbar"));
wxToolBarToolBase* clipPlaneInButton =
const_cast<wxToolBarToolBase*>(getToolBarToolByLabel(miscToolbar, "clipPlaneInButton"));
wxToolBarToolBase* clipPlaneOutButton =
const_cast<wxToolBarToolBase*>(getToolBarToolByLabel(miscToolbar, "clipPlaneOutButton"));
miscToolbar->EnableTool(clipPlaneInButton->GetId(), enabled);
miscToolbar->EnableTool(clipPlaneOutButton->GetId(), enabled);
// Update tooltips so users know why they are disabled
clipPlaneInButton->SetShortHelp(FAR_CLIP_IN_TEXT + (enabled ? "" : FAR_CLIP_DISABLED_TEXT));
clipPlaneOutButton->SetShortHelp(FAR_CLIP_OUT_TEXT + (enabled ? "" : FAR_CLIP_DISABLED_TEXT));
}
void CamWnd::constructGUIComponents()
{
constructToolbar();
// Set up wxGL widget
_wxGLWidget->SetCanFocus(false);
_wxGLWidget->SetMinClientSize(wxSize(CAMWND_MINSIZE_X, CAMWND_MINSIZE_Y));
_wxGLWidget->Connect(wxEVT_SIZE, wxSizeEventHandler(CamWnd::onGLResize), NULL, this);
_wxGLWidget->Connect(wxEVT_MOUSEWHEEL, wxMouseEventHandler(CamWnd::onMouseScroll), NULL, this);
_mainWxWidget->GetSizer()->Add(_wxGLWidget, 1, wxEXPAND);
}
CamWnd::~CamWnd()
{
// Stop the timer, it might still fire even during shutdown
_timer.Stop();
// Unsubscribe from the global scene graph update
GlobalSceneGraph().removeSceneObserver(this);
if (_freeMoveEnabled) {
disableFreeMove();
}
removeHandlersMove();
// Notify the camera manager about our destruction
GlobalCamera().removeCamWnd(_id);
}
SelectionTestPtr CamWnd::createSelectionTestForPoint(const Vector2& point)
{
float selectEpsilon = registry::getValue<float>(RKEY_SELECT_EPSILON);
// Get the mouse position
Vector2 deviceEpsilon(selectEpsilon / getCamera().width, selectEpsilon / getCamera().height);
// Copy the current view and constrain it to a small rectangle
render::View scissored(_view);
ConstructSelectionTest(scissored, selection::Rectangle::ConstructFromPoint(point, deviceEpsilon));
return SelectionTestPtr(new SelectionVolume(scissored));
}
const VolumeTest& CamWnd::getVolumeTest() const
{
return _view;
}
int CamWnd::getDeviceWidth() const
{
return _camera.width;
}
int CamWnd::getDeviceHeight() const
{
return _camera.height;
}
void CamWnd::startRenderTime()
{
if (_timer.IsRunning())
{
// Timer is already running, just reset the preview time
GlobalRenderSystem().setTime(0);
}
else
{
// Timer is not enabled, we're paused or stopped
_timer.Start(MSEC_PER_FRAME);
_timerLock = false; // reset the lock, just in case
}
wxToolBar* miscToolbar = static_cast<wxToolBar*>(_mainWxWidget->FindWindow("MiscToolbar"));
const wxToolBarToolBase* stopTimeButton = getToolBarToolByLabel(miscToolbar, "stopTimeButton");
miscToolbar->EnableTool(stopTimeButton->GetId(), true);
}
void CamWnd::onStartTimeButtonClick(wxCommandEvent& ev)
{
startRenderTime();
}
void CamWnd::onStopTimeButtonClick(wxCommandEvent& ev)
{
stopRenderTime();
}
void CamWnd::onFrame(wxTimerEvent& ev)
{
// Calling wxTheApp->Yield() might cause another timer callback if enough
// time has passed during rendering. Calling Yield() within Yield()
// might in the end cause stack overflows and is caught by wxWidgets.
if (!_timerLock)
{
util::ScopedBoolLock lock(_timerLock);
GlobalRenderSystem().setTime(GlobalRenderSystem().getTime() + _timer.GetInterval());
// Mouse movement is handled via idle callbacks, so let's give the app a chance to react
wxTheApp->ProcessIdle();
_wxGLWidget->Refresh();
}
}
void CamWnd::stopRenderTime()
{
_timer.Stop();
wxToolBar* miscToolbar = static_cast<wxToolBar*>(_mainWxWidget->FindWindow("MiscToolbar"));
const wxToolBarToolBase* startTimeButton = getToolBarToolByLabel(miscToolbar, "startTimeButton");
const wxToolBarToolBase* stopTimeButton = getToolBarToolByLabel(miscToolbar, "stopTimeButton");
miscToolbar->EnableTool(startTimeButton->GetId(), true);
miscToolbar->EnableTool(stopTimeButton->GetId(), false);
}
void CamWnd::onRenderModeButtonsChanged(wxCommandEvent& ev)
{
if (ev.GetInt() == 0) // un-toggled
{
return; // Don't react on UnToggle events
}
wxToolBar* camToolbar = static_cast<wxToolBar*>(_mainWxWidget->FindWindow("CamToolbar"));
// This function will be called twice, once for the inactivating button and
// once for the activating button
if (getToolBarToolByLabel(camToolbar, "texturedBtn")->GetId() == ev.GetId())
{
getCameraSettings()->setRenderMode(RENDER_MODE_TEXTURED);
}
else if (getToolBarToolByLabel(camToolbar, "wireframeBtn")->GetId() == ev.GetId())
{
getCameraSettings()->setRenderMode(RENDER_MODE_WIREFRAME);
}
else if (getToolBarToolByLabel(camToolbar, "flatShadeBtn")->GetId() == ev.GetId())
{
getCameraSettings()->setRenderMode(RENDER_MODE_SOLID);
}
else if (getToolBarToolByLabel(camToolbar, "lightingBtn")->GetId() == ev.GetId())
{
getCameraSettings()->setRenderMode(RENDER_MODE_LIGHTING);
}
}
void CamWnd::updateActiveRenderModeButton()
{
wxToolBar* camToolbar = static_cast<wxToolBar*>(_mainWxWidget->FindWindow("CamToolbar"));
switch (getCameraSettings()->getRenderMode())
{
case RENDER_MODE_WIREFRAME:
camToolbar->ToggleTool(getToolBarToolByLabel(camToolbar, "wireframeBtn")->GetId(), true);
break;
case RENDER_MODE_SOLID:
camToolbar->ToggleTool(getToolBarToolByLabel(camToolbar, "flatShadeBtn")->GetId(), true);
break;
case RENDER_MODE_TEXTURED:
camToolbar->ToggleTool(getToolBarToolByLabel(camToolbar, "texturedBtn")->GetId(), true);
break;
case RENDER_MODE_LIGHTING:
camToolbar->ToggleTool(getToolBarToolByLabel(camToolbar, "lightingBtn")->GetId(), true);
break;
default:
assert(false);
}
}
int CamWnd::getId()
{
return _id;
}
void CamWnd::jumpToObject(SelectionTest& selectionTest) {
// Find a suitable target node
ObjectFinder finder(selectionTest);
GlobalSceneGraph().root()->traverse(finder);
if (finder.getNode() != NULL) {
// A node has been found, get the bounding box
AABB found = finder.getNode()->worldAABB();
// Focus the view at the center of the found AABB
map::Map::focusViews(found.origin, getCameraAngles());
}
}
void CamWnd::changeFloor(const bool up) {
float current = _camera.getOrigin()[2] - 48;
float bestUp;
float bestDown;
FloorHeightWalker walker(current, bestUp, bestDown);
GlobalSceneGraph().root()->traverse(walker);
if (up && bestUp != game::current::getValue<float>("/defaults/maxWorldCoord")) {
current = bestUp;
}
if (!up && bestDown != -game::current::getValue<float>("/defaults/maxWorldCoord")) {
current = bestDown;
}
const Vector3& org = _camera.getOrigin();
_camera.setOrigin(Vector3(org[0], org[1], current + 48));
_camera.updateModelview();
update();
GlobalCamera().movedNotify();
}
void CamWnd::enableFreeMove()
{
ASSERT_MESSAGE(!_freeMoveEnabled, "EnableFreeMove: free-move was already enabled");
_freeMoveEnabled = true;
_camera.clearMovementFlags(MOVE_ALL);
removeHandlersMove();
enableFreeMoveEvents();
update();
}
void CamWnd::disableFreeMove()
{
ASSERT_MESSAGE(_freeMoveEnabled, "DisableFreeMove: free-move was not enabled");
_freeMoveEnabled = false;
_camera.clearMovementFlags(MOVE_ALL);
disableFreeMoveEvents();
addHandlersMove();
update();
}
bool CamWnd::freeMoveEnabled() const
{
return _freeMoveEnabled;
}
namespace
{
// Implementation of RenderableCollector for the 3D camera view.
class CamRenderer: public RenderableCollector
{
// The View object for object culling
const render::View& _view;
// Render statistics
render::RenderStatistics& _renderStats;
// Highlight state
bool _highlightFaces = false;
bool _highlightPrimitives = false;
Shader& _highlightedPrimitiveShader;
Shader& _highlightedFaceShader;
// All lights we have received from the scene
std::list<const RendererLight*> _sceneLights;
// Legacy lit renderable which provided its own LightSources to
// addRenderable()
struct LegacyLitRenderable
{
const OpenGLRenderable& renderable;
const LightSources* lights = nullptr;
Matrix4 local2World;
const IRenderEntity* entity = nullptr;
LegacyLitRenderable(const OpenGLRenderable& r, const LightSources* l,
const Matrix4& l2w, const IRenderEntity* e)
: renderable(r), lights(l), local2World(l2w), entity(e)
{}
};
using LegacyLitRenderables = std::vector<LegacyLitRenderable>;
// Legacy renderables with their own light lists. No processing needed;
// just store them until it's time to submit to shaders.
using LegacyRenderablesByShader = std::map<Shader*, LegacyLitRenderables>;
LegacyRenderablesByShader _legacyRenderables;
// Lit renderable provided via addLitRenderable(), for which we construct
// the light list with lights received via addLight().
struct LitRenderable
{
// Renderable information submitted with addLitObject()
const OpenGLRenderable& renderable;
const LitObject& litObject;
Matrix4 local2World;
const IRenderEntity* entity = nullptr;
// Calculated list of intersecting lights (initially empty)
render::lib::VectorLightList lights;
};
using LitRenderables = std::vector<LitRenderable>;
// Renderables added with addLitObject() need to be stored until their
// light lists can be calculated, which can't happen until all the lights
// are submitted too.
std::map<Shader*, LitRenderables> _litRenderables;
// Intersect all received renderables wiith lights
void calculateLightIntersections()
{
// For each shader
for (auto i = _litRenderables.begin(); i != _litRenderables.end(); ++i)
{
// For each renderable associated with this shader
for (auto j = i->second.begin(); j != i->second.end(); ++j)
{
// Test intersection between the LitObject and each light in
// the scene
for (const RendererLight* l: _sceneLights)
{
if (j->litObject.intersectsLight(*l))
j->lights.addLight(*l);
}
}
}
}
public:
// Initialise CamRenderer with the highlight shaders
CamRenderer(const render::View& view, Shader& primHighlightShader,
Shader& faceHighlightShader, render::RenderStatistics& stats)
: _view(view),
_renderStats(stats),
_highlightedPrimitiveShader(primHighlightShader),
_highlightedFaceShader(faceHighlightShader)
{}
// Instruct the CamRenderer to push its sorted renderables to their
// respective shaders and perform the actual render
void backendRender(RenderStateFlags allowedFlags, const Matrix4& modelView,
const Matrix4& projection)
{
// Calculate intersections between lights and renderables we have received
calculateLightIntersections();
// For each shader in the map
for (auto i = _legacyRenderables.begin();
i != _legacyRenderables.end();
++i)
{
// Iterate over the list of renderables for this shader, submitting
// each one
Shader* shader = i->first;
wxASSERT(shader);
for (auto j = i->second.begin(); j != i->second.end(); ++j)
{
const LegacyLitRenderable& lr = *j;
shader->addRenderable(lr.renderable, lr.local2World,
lr.lights, lr.entity);
}
}
// Tell the render system to render its shaders and renderables
GlobalRenderSystem().render(allowedFlags, modelView, projection,
_view.getViewer());
}
// RenderableCollector implementation
bool supportsFullMaterials() const override { return true; }
void setHighlightFlag(Highlight::Flags flags, bool enabled) override
{
if (flags & Highlight::Faces)
{
_highlightFaces = enabled;
}
if (flags & Highlight::Primitives)
{
_highlightPrimitives = enabled;
}
}
void addLight(const RendererLight& light) override
{
// Determine if this light is visible within the view frustum
VolumeIntersectionValue viv = _view.TestAABB(light.lightAABB());
if (viv == VOLUME_OUTSIDE)
{
// Not interested
_renderStats.addLight(false);
}
else
{
// Store the light in our list of scene lights
_sceneLights.push_back(&light);
// Count the light for the stats display
_renderStats.addLight(true);
}
}
void addRenderable(Shader& shader, const OpenGLRenderable& renderable,
const Matrix4& world, const LightSources* lights,
const IRenderEntity* entity) override
{
if (_highlightPrimitives)
_highlightedPrimitiveShader.addRenderable(renderable, world,
lights, entity);
if (_highlightFaces)
_highlightedFaceShader.addRenderable(renderable, world,
lights, entity);
// Construct an entry for this shader in the map if it is the first
// time we've seen it
auto iter = _legacyRenderables.find(&shader);
if (iter == _legacyRenderables.end())
{
// Add an entry for this shader, and pre-allocate some space in the
// vector to avoid too many expansions during scenegraph traversal.
LegacyLitRenderables emptyList;
emptyList.reserve(1024);
auto result = _legacyRenderables.insert(
std::make_pair(&shader, std::move(emptyList))
);
wxASSERT(result.second);
iter = result.first;
}
wxASSERT(iter != _legacyRenderables.end());
// Add the renderable and its lights to the list of lit renderables for
// this shader
wxASSERT(iter->first == &shader);
iter->second.emplace_back(renderable, lights, world, entity);
}
void addLitRenderable(Shader& shader,
OpenGLRenderable& renderable,
const Matrix4& localToWorld,
const LitObject& litObject,
const IRenderEntity* entity = nullptr) override
{
if (_highlightPrimitives)
_highlightedPrimitiveShader.addRenderable(renderable, localToWorld,
nullptr, entity);
if (_highlightFaces)
_highlightedFaceShader.addRenderable(renderable, localToWorld,
nullptr, entity);
// Construct an entry for this shader in the map if it is the first
// time we've seen it
auto iter = _litRenderables.find(&shader);
if (iter == _litRenderables.end())
{
// Add an entry for this shader, and pre-allocate some space in the
// vector to avoid too many expansions during scenegraph traversal.
LitRenderables emptyList;
emptyList.reserve(1024);
auto result = _litRenderables.insert(
std::make_pair(&shader, std::move(emptyList))
);
wxASSERT(result.second);
iter = result.first;
}
wxASSERT(iter != _litRenderables.end());
wxASSERT(iter->first == &shader);
// Store a LitRenderable object for this renderable
LitRenderable lr { renderable, litObject, localToWorld, entity };
iter->second.push_back(std::move(lr));
}
};
}
void CamWnd::Cam_Draw()
{
wxSize glSize = _wxGLWidget->GetSize();
if (_camera.width != glSize.GetWidth() || _camera.height != glSize.GetHeight())
{
_camera.width = glSize.GetWidth();
_camera.height = glSize.GetHeight();
_camera.updateProjection();
}
if (_camera.height == 0 || _camera.width == 0)
{
return; // otherwise we'll receive OpenGL errors in ortho rendering below
}
glViewport(0, 0, _camera.width, _camera.height);
// enable depth buffer writes
glDepthMask(GL_TRUE);
Vector3 clearColour(0, 0, 0);
if (getCameraSettings()->getRenderMode() != RENDER_MODE_LIGHTING)
{
clearColour = ColourSchemes().getColour("camera_background");
}
glClearColor(clearColour[0], clearColour[1], clearColour[2], 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Reset statistics for this frame
_renderStats.resetStats();
render::View::resetCullStats();
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(_camera.projection);
glMatrixMode(GL_MODELVIEW);
glLoadMatrixd(_camera.modelview);
// one directional light source directly behind the viewer
{
GLfloat inverse_cam_dir[4], ambient[4], diffuse[4];//, material[4];
ambient[0] = ambient[1] = ambient[2] = 0.4f;
ambient[3] = 1.0f;
diffuse[0] = diffuse[1] = diffuse[2] = 0.4f;
diffuse[3] = 1.0f;
//material[0] = material[1] = material[2] = 0.8f;
//material[3] = 1.0f;
inverse_cam_dir[0] = _camera.vpn[0];
inverse_cam_dir[1] = _camera.vpn[1];
inverse_cam_dir[2] = _camera.vpn[2];
inverse_cam_dir[3] = 0;
glLightfv(GL_LIGHT0, GL_POSITION, inverse_cam_dir);
glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
glEnable(GL_LIGHT0);
}
// Set the allowed render flags for this view
unsigned int allowedRenderFlags = RENDER_DEPTHTEST
| RENDER_MASKCOLOUR
| RENDER_DEPTHWRITE
| RENDER_ALPHATEST
| RENDER_BLEND
| RENDER_CULLFACE
| RENDER_OFFSETLINE
| RENDER_VERTEX_COLOUR
| RENDER_POINT_COLOUR;
// Add mode-specific render flags
switch (getCameraSettings()->getRenderMode())
{
case RENDER_MODE_WIREFRAME:
break;
case RENDER_MODE_SOLID:
allowedRenderFlags |= RENDER_FILL
| RENDER_LIGHTING
| RENDER_SMOOTH
| RENDER_SCALED;
break;
case RENDER_MODE_TEXTURED:
allowedRenderFlags |= RENDER_FILL
| RENDER_LIGHTING
| RENDER_TEXTURE_2D
| RENDER_SMOOTH
| RENDER_SCALED;
break;
case RENDER_MODE_LIGHTING:
allowedRenderFlags |= RENDER_FILL
| RENDER_LIGHTING
| RENDER_TEXTURE_2D
| RENDER_TEXTURE_CUBEMAP
| RENDER_VERTEX_COLOUR
| RENDER_SMOOTH
| RENDER_SCALED
| RENDER_BUMP
| RENDER_PROGRAM;
break;
default:
allowedRenderFlags = 0;
break;
}
if (!getCameraSettings()->solidSelectionBoxes())
{
allowedRenderFlags |= RENDER_LINESTIPPLE
| RENDER_POLYGONSTIPPLE;
}
// Main scene render
{
// Front end (renderable collection from scene)
CamRenderer renderer(_view, *_primitiveHighlightShader,
*_faceHighlightShader, _renderStats);
render::RenderableCollectionWalker::CollectRenderablesInScene(renderer, _view);
_renderStats.frontEndComplete();
// Render any active mousetools
for (const ActiveMouseTools::value_type& i : _activeMouseTools)
{
i.second->render(GlobalRenderSystem(), renderer, _view);
}
// Backend (shader rendering)
renderer.backendRender(allowedRenderFlags, _camera.modelview,
_camera.projection);
}
// greebo: Draw the clipper's points (skipping the depth-test)
{
glDisable(GL_DEPTH_TEST);
glColor4f(1, 1, 1, 1);
glPointSize(5);
if (GlobalClipper().clipMode()) {
GlobalClipper().draw(1.0f);
}
glPointSize(1);
}
// prepare for 2d stuff
glColor4f(1, 1, 1, 1);
glDisable(GL_BLEND);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, (float)_camera.width, 0, (float)_camera.height, -100, 100);
glScalef(1, -1, 1);
glTranslatef(0, -(float)_camera.height, 0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
if (GLEW_VERSION_1_3)
{
glClientActiveTexture(GL_TEXTURE0);
glActiveTexture(GL_TEXTURE0);
}
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisable(GL_TEXTURE_2D);
glDisable(GL_LIGHTING);
glDisable(GL_COLOR_MATERIAL);
glDisable(GL_DEPTH_TEST);
glColor3f( 1.f, 1.f, 1.f );
glLineWidth(1);
// draw the crosshair
if (_freeMoveEnabled) {
glBegin( GL_LINES );
glVertex2f( (float)_camera.width / 2.f, (float)_camera.height / 2.f + 6 );
glVertex2f( (float)_camera.width / 2.f, (float)_camera.height / 2.f + 2 );
glVertex2f( (float)_camera.width / 2.f, (float)_camera.height / 2.f - 6 );
glVertex2f( (float)_camera.width / 2.f, (float)_camera.height / 2.f - 2 );
glVertex2f( (float)_camera.width / 2.f + 6, (float)_camera.height / 2.f );
glVertex2f( (float)_camera.width / 2.f + 2, (float)_camera.height / 2.f );
glVertex2f( (float)_camera.width / 2.f - 6, (float)_camera.height / 2.f );
glVertex2f( (float)_camera.width / 2.f - 2, (float)_camera.height / 2.f );
glEnd();
}
// Render the stats and timing text. This may include culling stats in
// debug builds.