SLProject  4.2.000
A platform independent 3D computer graphics framework for desktop OS, Android, iOS and online in web browsers
Public Member Functions | Private Attributes | List of all members
AppDemoSceneVideoTexture Class Reference

Class for live or file video on texture test scene. More...

#include <AppDemoSceneVideoTexture.h>

Inheritance diagram for AppDemoSceneVideoTexture:
[legend]

Public Member Functions

 AppDemoSceneVideoTexture (SLSceneID sid)
 
void registerAssetsToLoad (SLAssetLoader &al) override
 All scene specific assets have to be registered for async loading in here. More...
 
void assemble (SLAssetManager *am, SLSceneView *sv) override
 After parallel loading of the assets the scene gets assembled in here. More...
 
- Public Member Functions inherited from SLScene
 SLScene (const SLstring &name)
 
 ~SLScene () override
 
void initOculus (SLstring shaderDir)
 
void root3D (SLNode *root3D)
 
void root2D (SLNode *root2D)
 
void skybox (SLSkybox *skybox)
 
void stopAnimations (SLbool stop)
 
void info (SLstring i)
 
void loadTimeMS (SLfloat loadTimeMS)
 
SLAnimManager & animManager ()
 
SLAssetManager * assetManager ()
 
SLNode * root3D ()
 
SLNode * root2D ()
 
SLSkybox * skybox ()
 
SLstring & info ()
 
SLfloat elapsedTimeMS () const
 
SLfloat elapsedTimeSec () const
 
SLVEventHandler & eventHandlers ()
 
SLfloat loadTimeMS () const
 
SLVLight & lights ()
 
SLfloat fps () const
 
AvgFloat & frameTimesMS ()
 
AvgFloat & updateTimesMS ()
 
AvgFloat & updateAnimTimesMS ()
 
AvgFloat & updateAABBTimesMS ()
 
AvgFloat & updateDODTimesMS ()
 
SLNode * singleNodeSelected ()
 Returns the node if only one is selected. See also SLMesh::selectNodeMesh. More...
 
SLMesh * singleMeshFullSelected ()
 Returns the node if only one is selected. See also SLMesh::selectNodeMesh. More...
 
SLVNode & selectedNodes ()
 
SLVMesh & selectedMeshes ()
 
SLbool stopAnimations () const
 
SLint numSceneCameras ()
 Returns the number of camera nodes in the scene. More...
 
SLCamera * nextCameraInScene (SLCamera *activeSVCam)
 Returns the next camera in the scene if there is one. More...
 
bool onUpdate (bool renderTypeIsRT, bool voxelsAreShown, bool forceCPUSkinning)
 Updates animations and AABBs. More...
 
void init (SLAssetManager *am)
 
virtual void unInit ()
 
void selectNodeMesh (SLNode *nodeToSelect, SLMesh *meshToSelect)
 Handles the full mesh selection from double-clicks. More...
 
void deselectAllNodesAndMeshes ()
 Deselects all nodes and its meshes. More...
 
SLGLOculus * oculus ()
 
- Public Member Functions inherited from SLObject
 SLObject (const SLstring &Name="", const SLstring &url="")
 
virtual ~SLObject ()
 
void name (const SLstring &Name)
 
void url (const SLstring &url)
 
const SLstring & name () const
 
const SLstring & url () const
 

Private Attributes

SLSceneID _sceneID
 

Additional Inherited Members

- Protected Attributes inherited from SLScene
SLVLight _lights
 Vector of all lights. More...
 
SLVEventHandler _eventHandlers
 Vector of all event handler. More...
 
SLAnimManager _animManager
 Animation manager instance. More...
 
SLAssetManager * _assetManager
 Pointer to the external assetManager. More...
 
SLNode * _root3D
 Root node for 3D scene. More...
 
SLNode * _root2D
 Root node for 2D scene displayed in ortho projection. More...
 
SLSkybox * _skybox
 pointer to skybox More...
 
SLstring _info
 scene info string More...
 
SLVNode _selectedNodes
 Vector of selected nodes. See SLMesh::selectNodeMesh. More...
 
SLVMesh _selectedMeshes
 Vector of selected meshes. See SLMesh::selectNodeMesh. More...
 
SLfloat _loadTimeMS
 time to load scene in ms More...
 
SLfloat _frameTimeMS
 Last frame time in ms. More...
 
SLfloat _lastUpdateTimeMS
 Last time after update in ms. More...
 
SLfloat _fps
 Averaged no. of frames per second. More...
 
AvgFloat _frameTimesMS
 Averaged total time per frame in ms. More...
 
AvgFloat _updateTimesMS
 Averaged time for update in ms. More...
 
AvgFloat _updateAABBTimesMS
 Averaged time for update the nodes AABB in ms. More...
 
AvgFloat _updateAnimTimesMS
 Averaged time for update the animations in ms. More...
 
AvgFloat _updateDODTimesMS
 Averaged time for update the SLEntities graph. More...
 
SLbool _stopAnimations
 Global flag for stopping all animations. More...
 
std::unique_ptr< SLGLOculus > _oculus
 Oculus Rift interface. More...
 
- Protected Attributes inherited from SLObject
SLstring _name
 name of an object More...
 
SLstring _url
 uniform resource locator More...
 

Detailed Description

Class for live or file video on texture test scene.

Definition at line 20 of file AppDemoSceneVideoTexture.h.

Constructor & Destructor Documentation

◆ AppDemoSceneVideoTexture()

AppDemoSceneVideoTexture::AppDemoSceneVideoTexture ( SLSceneID  sid)

Definition at line 26 of file AppDemoSceneVideoTexture.cpp.

27  : SLScene("Texture from Video"),
28  _sceneID(sid)
29 {
30  // Set scene name and info string
31  if (_sceneID == SID_VideoTextureLive)
32  info("Minimal texture mapping example with live video source.");
33  else
34  info("Minimal texture mapping example with video file source.");
35 }
SID_VideoTextureLive
@ SID_VideoTextureLive
Definition: AppDemoSceneID.h:78
SLScene::SLScene
SLScene(const SLstring &name)
Definition: SLScene.cpp:39
SLScene::info
SLstring & info()
Definition: SLScene.h:102

Member Function Documentation

◆ assemble()

void AppDemoSceneVideoTexture::assemble ( SLAssetManager *  am,
SLSceneView *  sv 
)
overridevirtual

After parallel loading of the assets the scene gets assembled in here.

Remarks
All scene-specific assets have to be loaded async by overriding SLScene::registerAssetsToLoad and SLScene::assemble. Async loading and assembling means that it happens in a parallel thread and that in there are no OpenGL calls allowed. OpenGL calls are only allowed in the main thread. It is important that all object instantiations within SLScene::assemble do NOT call any OpenGL functions (gl*) because they happen in a parallel thread. All objects that get rendered have to do their initialization when they are used the first time during rendering in the main thread.

Reimplemented from SLScene.

Definition at line 49 of file AppDemoSceneVideoTexture.cpp.

50 {
51  // Set scene name and info string
52  if (_sceneID == SID_VideoTextureLive)
53  {
54  // on desktop, it will be the main camera
55  CVCapture::instance()->videoType(VT_MAIN);
56  }
57  else
58  {
59  CVCapture::instance()->videoType(VT_FILE);
60  CVCapture::instance()->videoFilename = AppCommon::videoPath + "street3.mp4";
61  CVCapture::instance()->videoLoops = true;
62  }
63 
64  sv->viewportSameAsVideo(true);
65 
66  // Create video texture on global pointer updated in AppDemoVideo
67  SLMaterial* m1 = new SLMaterial(am, "VideoMat", gVideoTexture);
68 
69  // Create a root scene group for all nodes
70  SLNode* scene = new SLNode("scene node");
71  root3D(scene);
72 
73  // Create a camera node
74  SLCamera* cam1 = new SLCamera("Camera 1");
75  cam1->translation(0, 0, 20);
76  cam1->focalDist(20);
77  cam1->lookAt(0, 0, 0);
78  cam1->background().texture(gVideoTexture);
79  cam1->setInitialState();
80  cam1->devRotLoc(&AppCommon::devRot, &AppCommon::devLoc);
81  scene->addChild(cam1);
82 
83  // Create rectangle meshe and nodes
84  SLfloat h = 5.0f;
85  SLfloat w = h * sv->viewportWdivH();
86  SLMesh* rectMesh = new SLRectangle(am,
87  SLVec2f(-w, -h),
88  SLVec2f(w, h),
89  1,
90  1,
91  "rect mesh",
92  m1);
93  SLNode* rectNode = new SLNode(rectMesh, "rect node");
94  rectNode->translation(0, 0, -5);
95  scene->addChild(rectNode);
96 
97  // Center sphere
98  SLNode* sphere = new SLNode(new SLSphere(am,
99  2,
100  32,
101  32,
102  "Sphere",
103  m1));
104  sphere->rotate(-90, 1, 0, 0);
105  scene->addChild(sphere);
106 
107  // Create a light source node
108  SLLightSpot* light1 = new SLLightSpot(am, this, 0.3f);
109  light1->translation(0, 0, 5);
110  light1->lookAt(0, 0, 0);
111  light1->name("light node");
112  scene->addChild(light1);
113 
114  sv->camera(cam1);
115  sv->doWaitOnIdle(false);
116 }
gVideoTexture
SLGLTexture * gVideoTexture
Definition: AppDemoVideo.cpp:32
VT_FILE
@ VT_FILE
Loads a video from file with OpenCV.
Definition: CVCapture.h:44
VT_MAIN
@ VT_MAIN
Main camera on all on all all devices.
Definition: CVCapture.h:42
SLfloat
float SLfloat
Definition: SL.h:173
SLVec2f
SLVec2< SLfloat > SLVec2f
Definition: SLVec2.h:141
AppCommon::devRot
static SLDeviceRotation devRot
Mobile device rotation from IMU.
Definition: AppCommon.h:64
AppCommon::devLoc
static SLDeviceLocation devLoc
Mobile device location from GPS.
Definition: AppCommon.h:65
AppCommon::videoPath
static SLstring videoPath
Path to video files.
Definition: AppCommon.h:88
CVCapture::videoType
void videoType(CVVideoType vt)
Setter for video type also sets the active calibration.
Definition: CVCapture.cpp:866
CVCapture::videoFilename
string videoFilename
video filename to load
Definition: CVCapture.h:126
CVCapture::instance
static CVCapture * instance()
Public static instance getter for singleton pattern.
Definition: CVCapture.h:65
CVCapture::videoLoops
bool videoLoops
flag if video should loop
Definition: CVCapture.h:127
SLBackground::texture
void texture(SLGLTexture *backgroundTexture, bool fixAspectRatio=false)
If flag _repeatBlurred is true the texture is not distorted if its size does not fit to screen aspect...
Definition: SLBackground.cpp:114
SLCamera
Active or visible camera node class.
Definition: SLCamera.h:54
SLCamera::devRotLoc
void devRotLoc(SLDeviceRotation *devRot, SLDeviceLocation *devLoc)
Definition: SLCamera.h:120
SLCamera::focalDist
void focalDist(const SLfloat f)
Definition: SLCamera.h:116
SLCamera::background
SLBackground & background()
Definition: SLCamera.h:165
SLLightSpot
SLLightSpot class for a spot light source.
Definition: SLLightSpot.h:36
SLMaterial
Defines a standard CG material with textures and a shader program.
Definition: SLMaterial.h:56
SLMesh
An SLMesh object is a triangulated mesh, drawn with one draw call.
Definition: SLMesh.h:134
SLNode
SLNode represents a node in a hierarchical scene graph.
Definition: SLNode.h:147
SLNode::addChild
void addChild(SLNode *child)
Definition: SLNode.cpp:207
SLNode::translation
void translation(const SLVec3f &pos, SLTransformSpace relativeTo=TS_parent)
Definition: SLNode.cpp:828
SLNode::rotate
void rotate(const SLQuat4f &rot, SLTransformSpace relativeTo=TS_object)
Definition: SLNode.cpp:945
SLNode::setInitialState
void setInitialState()
Definition: SLNode.cpp:1084
SLNode::lookAt
void lookAt(SLfloat targetX, SLfloat targetY, SLfloat targetZ, SLfloat upX=0, SLfloat upY=1, SLfloat upZ=0, SLTransformSpace relativeTo=TS_world)
Definition: SLNode.h:652
SLObject::name
void name(const SLstring &Name)
Definition: SLObject.h:34
SLRectangle
SLRectangle creates a rectangular mesh with a certain resolution.
Definition: SLRectangle.h:29
SLScene::root3D
SLNode * root3D()
Definition: SLScene.h:99
SLScene::SLNode
friend class SLNode
Definition: SLScene.h:48
SLSceneView
SceneView class represents a dynamic real time 3D view onto the scene.
Definition: SLSceneView.h:69
SLSceneView::camera
void camera(SLCamera *camera)
Definition: SLSceneView.h:145
SLSceneView::viewportSameAsVideo
void viewportSameAsVideo(bool sameAsVideo)
Definition: SLSceneView.h:155
SLSceneView::viewportWdivH
SLfloat viewportWdivH() const
Definition: SLSceneView.h:178
SLSceneView::doWaitOnIdle
void doWaitOnIdle(SLbool doWI)
Definition: SLSceneView.h:149
SLSphere
SLSphere creates a sphere mesh based on SLSpheric w. 180 deg polar angle.
Definition: SLSphere.h:33

◆ registerAssetsToLoad()

void AppDemoSceneVideoTexture::registerAssetsToLoad ( SLAssetLoader &  al)
overridevirtual

All scene specific assets have to be registered for async loading in here.

All assets the should be loaded in parallel must be registered in here.

Remarks
All scene sspecific assets have to be loaded async by overriding SLScene::registerAssetsToLoad and SLScene::assemble. Async loading and assembling means that it happens in a parallel thread and that in there are no OpenGL calls allowed. OpenGL calls are only allowed in the main thread.

Reimplemented from SLScene.

Definition at line 38 of file AppDemoSceneVideoTexture.cpp.

39 {
40  // Create video texture on global pointer updated in AppDemoVideo
41  al.addTextureToLoad(gVideoTexture,
42  AppCommon::texturePath +
43  "LiveVideoError.png",
44  GL_LINEAR,
45  GL_LINEAR);
46 }
AppCommon::texturePath
static SLstring texturePath
Path to texture images.
Definition: AppCommon.h:86
SLAssetLoader::addTextureToLoad
void addTextureToLoad(SLGLTexture *&texture, const SLstring &path, SLint min_filter=GL_LINEAR_MIPMAP_LINEAR, SLint mag_filter=GL_LINEAR, SLTextureType type=TT_unknown, SLint wrapS=GL_REPEAT, SLint wrapT=GL_REPEAT)
Add 2D textures with internal image allocation.
Definition: SLAssetLoader.cpp:97

Member Data Documentation

◆ _sceneID

SLSceneID AppDemoSceneVideoTexture::_sceneID
private

Definition at line 45 of file AppDemoSceneVideoTexture.h.

The documentation for this class was generated from the following files: