source: OGRE/trunk/ogrenew/Samples/Lighting/include/Lighting.h @ 692

Revision 692, 12.5 KB checked in by mattausch, 18 years ago (diff)

adding ogre 1.2 and dependencies
Line 
1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4    (Object-oriented Graphics Rendering Engine)
5For the latest info, see http://www.ogre3d.org/
6
7Copyright (c) 2000-2005 The OGRE Team
8Also see acknowledgements in Readme.html
9
10You may use this sample code for anything you like, it is not covered by the
11LGPL like the rest of the engine.
12-----------------------------------------------------------------------------
13*/
14
15/**
16    \file
17        Lighting.h
18    \brief
19        Shows lighting support in OGRE. Also demonstrates the use of billboards
20        and controllers for automatic time-relative behaviour.
21*/
22
23
24#include "ExampleApplication.h"
25
26
27/** This class turns lights & billboards linked to them on & off */
28class LightFlasher : public ControllerValue<Real>
29{
30protected:
31        Light* mLight;
32        Billboard* mBillboard;
33        ColourValue mMaxColour;
34        Real intensity;
35public:
36        LightFlasher(Light* light, Billboard* billboard, ColourValue maxColour)
37        {
38                mLight = light;
39                mBillboard = billboard;
40                mMaxColour = maxColour;
41        }
42
43        virtual Real  getValue (void) const
44        {
45                return intensity;
46        }
47
48        virtual void  setValue (Real value)
49        {
50                intensity = value;
51
52                ColourValue newColour;
53
54                // Attenuate the brightness of the light
55                newColour.r = mMaxColour.r * intensity;
56                newColour.g = mMaxColour.g * intensity;
57                newColour.b = mMaxColour.b * intensity;
58
59                mLight->setDiffuseColour(newColour);
60                mBillboard->setColour(newColour);
61        }
62};
63
64
65/** Controller function mapping waveform to light intensity */
66class LightFlasherControllerFunction : public WaveformControllerFunction
67{
68public:
69        LightFlasherControllerFunction(WaveformType wavetype, Real frequency, Real phase) : WaveformControllerFunction(wavetype, 0, frequency, phase, 1, true)
70        {
71
72        }
73};
74
75
76// Some global node data
77SceneNode* mRedYellowLightsNode;
78SceneNode* mGreenBlueLightsNode;
79std::vector<AnimationState*> mAnimStateList;
80
81
82// Listener class for frame updates
83class LightingListener : public ExampleFrameListener
84{
85protected:
86public:
87    LightingListener(RenderWindow* win, Camera* cam)
88        : ExampleFrameListener(win, cam)
89    {
90    }
91
92    bool frameStarted(const FrameEvent& evt)
93    {
94
95                std::vector<AnimationState*>::iterator animi;
96                for (animi = mAnimStateList.begin(); animi != mAnimStateList.end(); ++animi)
97                {
98                        (*animi)->addTime(evt.timeSinceLastFrame);
99                }
100
101        // Call superclass
102        return ExampleFrameListener::frameStarted(evt);
103    }
104};
105
106/** Application class */
107class LightingApplication : public ExampleApplication
108{
109protected:
110
111        // The set of all the billboards used for the lights
112    // 2 sets because we'll rotate them differently
113        BillboardSet* mRedYellowLights;
114        BillboardSet* mGreenBlueLights;
115
116        // Billboards
117        Billboard* mRedLightBoard;
118        Billboard* mBlueLightBoard;
119        Billboard* mYellowLightBoard;
120        Billboard* mGreenLightBoard;
121
122        // Lights
123        Light* mRedLight;
124        Light* mBlueLight;
125        Light* mYellowLight;
126        Light* mGreenLight;
127
128
129        // Light flashers
130        ControllerValueRealPtr mRedLightFlasher;
131        ControllerValueRealPtr mBlueLightFlasher;
132        ControllerValueRealPtr mYellowLightFlasher;
133        ControllerValueRealPtr mGreenLightFlasher;
134
135        // Light controller functions
136        ControllerFunctionRealPtr mRedLightControllerFunc;
137        ControllerFunctionRealPtr mBlueLightControllerFunc;
138        ControllerFunctionRealPtr mYellowLightControllerFunc;
139        ControllerFunctionRealPtr mGreenLightControllerFunc;
140
141        // Light controllers
142        Controller<Real>* mRedLightController;
143        Controller<Real>* mBlueLightController;
144        Controller<Real>* mYellowLightController;
145        Controller<Real>* mGreenLightController;
146
147        void createScene(void)
148    {
149                // Set a very low level of ambient lighting
150                mSceneMgr->setAmbientLight(ColourValue(0.1, 0.1, 0.1));
151
152        // Use the "Space" skybox
153        mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox");
154
155                // Load ogre head
156                Entity* head = mSceneMgr->createEntity("head", "ogrehead.mesh");
157
158                // Attach the head to the scene
159                mSceneMgr->getRootSceneNode()->attachObject(head);
160
161                /*
162                // Create nodes for the lights to be rotated with
163        mRedYellowLightsNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
164        mGreenBlueLightsNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
165
166
167        // First create the BillboardSets. This will define the materials for the billboards
168                // in its set to use
169                mRedYellowLights = mSceneMgr->createBillboardSet("RedYellowLights");
170                mRedYellowLights->setMaterialName("Examples/Flare");
171                mRedYellowLightsNode->attachObject(mRedYellowLights);
172
173                mGreenBlueLights = mSceneMgr->createBillboardSet("GreenBlueLights");
174                mGreenBlueLights->setMaterialName("Examples/Flare");
175                mGreenBlueLightsNode->attachObject(mGreenBlueLights);
176
177                // Red light billboard, in "off" state
178                Vector3 redLightPosition(78, -8, -70);
179                mRedLightBoard = mRedYellowLights->createBillboard(redLightPosition);
180                mRedLightBoard->setColour(ColourValue::Black);
181
182
183                // Blue light billboard, in "off" state
184                Vector3 blueLightPosition(-90, -8, -70);
185                mBlueLightBoard = mGreenBlueLights->createBillboard(blueLightPosition);
186                mBlueLightBoard->setColour(ColourValue::Black);
187
188
189                // Yellow light billboard, in "off" state
190                Vector3 yellowLightPosition(-4.5, 30, -80);
191                mYellowLightBoard = mRedYellowLights->createBillboard(yellowLightPosition);
192                mYellowLightBoard->setColour(ColourValue::Black);
193
194                // Green light billboard, in "off" state
195                Vector3 greenLightPosition(50, 70, 80);
196                mGreenLightBoard = mGreenBlueLights->createBillboard(greenLightPosition);
197                mGreenLightBoard->setColour(ColourValue::Black);
198
199                // Red light, in "off" state
200                mRedLight = mSceneMgr->createLight("RedFlyingLight");
201                mRedLight->setType(Light::LT_POINT);
202                mRedLight->setPosition(redLightPosition);
203                mRedLight->setDiffuseColour(ColourValue::Black);
204                mRedYellowLightsNode->attachObject(mRedLight);
205
206                // Blue light, in "off" state
207                mBlueLight = mSceneMgr->createLight("BlueFlyingLight");
208                mBlueLight->setType(Light::LT_POINT);
209                mBlueLight->setPosition(blueLightPosition);
210                mBlueLight->setDiffuseColour(ColourValue::Black);
211                mGreenBlueLightsNode->attachObject(mBlueLight);
212
213                // Yellow light in "off" state
214                mYellowLight = mSceneMgr->createLight("YellowFlyingLight");
215                mYellowLight->setType(Light::LT_POINT);
216                mYellowLight->setPosition(yellowLightPosition);
217                mYellowLight->setDiffuseColour(ColourValue::Black);
218                mRedYellowLightsNode->attachObject(mYellowLight);
219
220                // Yellow light in "off" state
221                mGreenLight = mSceneMgr->createLight("GreenFlyingLight");
222                mGreenLight->setType(Light::LT_POINT);
223                mGreenLight->setPosition(greenLightPosition);
224                mGreenLight->setDiffuseColour(ColourValue::Black);
225                mGreenBlueLightsNode->attachObject(mGreenLight);
226
227                // Light flashers
228                mRedLightFlasher = ControllerValueRealPtr(
229            new LightFlasher(mRedLight, mRedLightBoard, ColourValue::Red));
230                mBlueLightFlasher = ControllerValueRealPtr(
231            new LightFlasher(mBlueLight, mBlueLightBoard, ColourValue::Blue));
232                mYellowLightFlasher = ControllerValueRealPtr(
233            new LightFlasher(mYellowLight, mYellowLightBoard, ColourValue(1.0, 1.0, 0.0)));
234                mGreenLightFlasher = ControllerValueRealPtr(
235            new LightFlasher(mGreenLight, mGreenLightBoard, ColourValue::Green));
236
237                // Light controller functions
238                mRedLightControllerFunc = ControllerFunctionRealPtr(
239            new LightFlasherControllerFunction(Ogre::WFT_SINE, 0.5, 0.0));
240                mBlueLightControllerFunc = ControllerFunctionRealPtr(
241            new LightFlasherControllerFunction(Ogre::WFT_SINE, 0.75, 0.5));
242                mYellowLightControllerFunc = ControllerFunctionRealPtr(
243            new LightFlasherControllerFunction(Ogre::WFT_TRIANGLE, 0.25, 0.0));
244                mGreenLightControllerFunc = ControllerFunctionRealPtr(
245            new LightFlasherControllerFunction(Ogre::WFT_SINE, 0.25, 0.5));
246
247                // Light controllers
248                ControllerManager* mControllerManager = &ControllerManager::getSingleton();
249                mRedLightController = mControllerManager->createController(mControllerManager->getFrameTimeSource(), mRedLightFlasher, mRedLightControllerFunc);
250                mBlueLightController = mControllerManager->createController(mControllerManager->getFrameTimeSource(), mBlueLightFlasher, mBlueLightControllerFunc);
251                mYellowLightController = mControllerManager->createController(mControllerManager->getFrameTimeSource(), mYellowLightFlasher, mYellowLightControllerFunc);
252                mGreenLightController = mControllerManager->createController(mControllerManager->getFrameTimeSource(), mGreenLightFlasher, mGreenLightControllerFunc);
253
254                */
255
256                setupTrailLights();
257
258    }
259
260        void setupTrailLights(void)
261        {
262                mSceneMgr->setAmbientLight(ColourValue(0.5, 0.5, 0.5));
263                Vector3 dir(-1, -1, 0.5);
264                dir.normalise();
265                Light* l = mSceneMgr->createLight("light1");
266                l->setType(Light::LT_DIRECTIONAL);
267                l->setDirection(dir);
268
269                NameValuePairList pairList;
270                pairList["numberOfChains"] = "2";
271                pairList["maxElements"] = "80";
272                RibbonTrail* trail = static_cast<RibbonTrail*>(
273                        mSceneMgr->createMovableObject("1", "RibbonTrail", &pairList));
274                trail->setMaterialName("Examples/LightRibbonTrail");
275                trail->setTrailLength(400);
276
277
278                mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(trail);
279
280                // Create 3 nodes for trail to follow
281                SceneNode* animNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
282                animNode->setPosition(50,30,0);
283                Animation* anim = mSceneMgr->createAnimation("an1", 14);
284                anim->setInterpolationMode(Animation::IM_SPLINE);
285                NodeAnimationTrack* track = anim->createNodeTrack(1, animNode);
286                TransformKeyFrame* kf = track->createNodeKeyFrame(0);
287                kf->setTranslate(Vector3(50,30,0));
288                kf = track->createNodeKeyFrame(2);
289                kf->setTranslate(Vector3(100, -30, 0));
290                kf = track->createNodeKeyFrame(4);
291                kf->setTranslate(Vector3(120, -100, 150));
292                kf = track->createNodeKeyFrame(6);
293                kf->setTranslate(Vector3(30, -100, 50));
294                kf = track->createNodeKeyFrame(8);
295                kf->setTranslate(Vector3(-50, 30, -50));
296                kf = track->createNodeKeyFrame(10);
297                kf->setTranslate(Vector3(-150, -20, -100));
298                kf = track->createNodeKeyFrame(12);
299                kf->setTranslate(Vector3(-50, -30, 0));
300                kf = track->createNodeKeyFrame(14);
301                kf->setTranslate(Vector3(50,30,0));
302
303                AnimationState* animState = mSceneMgr->createAnimationState("an1");
304                animState->setEnabled(true);
305                mAnimStateList.push_back(animState);
306
307                trail->setInitialColour(0, 1.0, 0.8, 0);
308                trail->setColourChange(0, 0.5, 0.5, 0.5, 0.5);
309                trail->setInitialWidth(0, 5);
310                trail->addNode(animNode);
311
312                // Add light
313                Light* l2 = mSceneMgr->createLight("l2");
314                l2->setDiffuseColour(trail->getInitialColour(0));
315                animNode->attachObject(l2);
316
317                // Add billboard
318                BillboardSet* bbs = mSceneMgr->createBillboardSet("bb", 1);
319                bbs->createBillboard(Vector3::ZERO, trail->getInitialColour(0));
320                bbs->setMaterialName("Examples/Flare");
321                animNode->attachObject(bbs);
322
323                animNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
324                animNode->setPosition(-50,100,0);
325                anim = mSceneMgr->createAnimation("an2", 10);
326                anim->setInterpolationMode(Animation::IM_SPLINE);
327                track = anim->createNodeTrack(1, animNode);
328                kf = track->createNodeKeyFrame(0);
329                kf->setTranslate(Vector3(-50,100,0));
330                kf = track->createNodeKeyFrame(2);
331                kf->setTranslate(Vector3(-100, 150, -30));
332                kf = track->createNodeKeyFrame(4);
333                kf->setTranslate(Vector3(-200, 0, 40));
334                kf = track->createNodeKeyFrame(6);
335                kf->setTranslate(Vector3(0, -150, 70));
336                kf = track->createNodeKeyFrame(8);
337                kf->setTranslate(Vector3(50, 0, 30));
338                kf = track->createNodeKeyFrame(10);
339                kf->setTranslate(Vector3(-50,100,0));
340
341                animState = mSceneMgr->createAnimationState("an2");
342                animState->setEnabled(true);
343                mAnimStateList.push_back(animState);
344
345                trail->setInitialColour(1, 0.0, 1.0, 0.4);
346                trail->setColourChange(1, 0.5, 0.5, 0.5, 0.5);
347                trail->setInitialWidth(1, 5);
348                trail->addNode(animNode);
349
350
351                // Add light
352                l2 = mSceneMgr->createLight("l3");
353                l2->setDiffuseColour(trail->getInitialColour(1));
354                animNode->attachObject(l2);
355
356                // Add billboard
357                bbs = mSceneMgr->createBillboardSet("bb2", 1);
358                bbs->createBillboard(Vector3::ZERO, trail->getInitialColour(1));
359                bbs->setMaterialName("Examples/Flare");
360                animNode->attachObject(bbs);
361
362
363        }
364
365        void createFrameListener(void)
366    {
367                // This is where we instantiate our own frame listener
368        mFrameListener= new LightingListener(mWindow, mCamera);
369        mRoot->addFrameListener(mFrameListener);
370
371    }
372
373};
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