Class for Cook-Torrance lighting demo scene. More...

#include <AppDemoSceneShaderCook.h>

Inheritance diagram for AppDemoSceneShaderCook:

Public Member Functions
	AppDemoSceneShaderCook ()

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
SLGLProgram *	_sp

SLGLProgram *	_spTex

SLGLTexture *	_texC

SLGLTexture *	_texN

SLGLTexture *	_texM

SLGLTexture *	_texR

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 Cook-Torrance lighting demo scene.

Definition at line 20 of file AppDemoSceneShaderCook.h.

Constructor & Destructor Documentation

◆ AppDemoSceneShaderCook()

AppDemoSceneShaderCook::AppDemoSceneShaderCook ( )

Definition at line 21 of file AppDemoSceneShaderCook.cpp.

   : SLScene("Cook-Torrance Shading")
 {
     info("Cook-Torrance reflection model. Left-Right: roughness 0.05-1, Top-Down: metallic: 1-0. "
          "The center sphere has roughness and metallic encoded in textures. "
          "The reflection model produces a more physically based light reflection "
          "than the standard Blinn-Phong reflection model.");
 }

Member Function Documentation

◆ assemble()

void AppDemoSceneShaderCook::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 54 of file AppDemoSceneShaderCook.cpp.

 {
     // Base root group node for the scene
     SLNode* scene = new SLNode;
     this->root3D(scene);
  
     SLCamera* cam1 = new SLCamera("Camera 1");
     cam1->translation(0, 0, 30);
     cam1->lookAt(0, 0, 0);
     cam1->background().colors(SLCol4f::BLACK);
     cam1->focalDist(30);
     cam1->setInitialState();
     cam1->devRotLoc(&AppCommon::devRot, &AppCommon::devLoc);
     scene->addChild(cam1);
  
     // Create spheres and materials with roughness & metallic values between 0 and 1
     const SLint nrRows  = 7;
     const SLint nrCols  = 7;
     SLfloat     spacing = 2.5f;
     SLfloat     maxX    = (float)(nrCols - 1) * spacing * 0.5f;
     SLfloat     maxY    = (float)(nrRows - 1) * spacing * 0.5f;
     SLfloat     deltaR  = 1.0f / (float)(nrRows - 1);
     SLfloat     deltaM  = 1.0f / (float)(nrCols - 1);
  
     SLMaterial* mat[nrRows * nrCols];
     SLint       i = 0;
     SLfloat     y = -maxY;
     for (SLint m = 0; m < nrRows; ++m)
     {
         SLfloat x = -maxX;
         for (SLint r = 0; r < nrCols; ++r)
         {
             if (m == nrRows / 2 && r == nrCols / 2)
             {
                 // The center sphere has roughness and metallic encoded in textures
                 mat[i] = new SLMaterial(am,
                                         "CookTorranceMatTex",
                                         nullptr,
                                         _texC,
                                         _texN,
                                         _texM,
                                         _texR,
                                         nullptr,
                                         _spTex);
             }
             else
             {
                 // Cook-Torrance material without textures
                 mat[i] = new SLMaterial(am,
                                         "CookTorranceMat",
                                         nullptr,
                                         SLCol4f::RED * 0.5f,
                                         Utils::clamp((float)r * deltaR, 0.05f, 1.0f),
                                         (float)m * deltaM,
                                         _sp);
             }
  
             SLNode* node = new SLNode(new SLSpheric(am, 1.0f, 0.0f, 180.0f, 32, 32, "Sphere", mat[i]));
             node->translate(x, y, 0);
             scene->addChild(node);
             x += spacing;
             i++;
         }
         y += spacing;
     }
  
     // Add 5 Lights: 2 point lights, 2 directional lights and 1 spotlight in the center.
     SLLight::gamma      = 2.2f;
     SLLightSpot* light1 = new SLLightSpot(am,
                                           this,
                                           -maxX,
                                           maxY,
                                           maxY,
                                           0.2f,
                                           180,
                                           0,
                                           1000,
                                           1000);
     light1->attenuation(0, 0, 1);
     SLLightDirect* light2 = new SLLightDirect(am,
                                               this,
                                               maxX,
                                               maxY,
                                               maxY,
                                               0.5f,
                                               0,
                                               10,
                                               10);
     light2->lookAt(0, 0, 0);
     light2->attenuation(0, 0, 1);
     SLLightSpot* light3 = new SLLightSpot(am,
                                           this,
                                           0,
                                           0,
                                           maxY,
                                           0.2f,
                                           36,
                                           0,
                                           1000,
                                           1000);
     light3->attenuation(0, 0, 1);
     SLLightDirect* light4 = new SLLightDirect(am,
                                               this,
                                               -maxX,
                                               -maxY,
                                               maxY,
                                               0.5f,
                                               0,
                                               10,
                                               10);
     light4->lookAt(0, 0, 0);
     light4->attenuation(0, 0, 1);
     SLLightSpot* light5 = new SLLightSpot(am,
                                           this,
                                           maxX,
                                           -maxY,
                                           maxY,
                                           0.2f,
                                           180,
                                           0,
                                           1000,
                                           1000);
     light5->attenuation(0, 0, 1);
     scene->addChild(light1);
     scene->addChild(light2);
     scene->addChild(light3);
     scene->addChild(light4);
     scene->addChild(light5);
     sv->camera(cam1);
 }

◆ registerAssetsToLoad()

void AppDemoSceneShaderCook::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 31 of file AppDemoSceneShaderCook.cpp.

 {
     al.addTextureToLoad(_texC,
                         AppCommon::texturePath +
                           "rusty-metal_2048_C.jpg");
     al.addTextureToLoad(_texN,
                         AppCommon::texturePath +
                           "rusty-metal_2048_N.jpg");
     al.addTextureToLoad(_texM,
                         AppCommon::texturePath +
                           "rusty-metal_2048_M.jpg");
     al.addTextureToLoad(_texR,
                         AppCommon::texturePath +
                           "rusty-metal_2048_R.jpg");
     al.addProgramToLoad(_sp,
                         AppCommon::shaderPath + "PerPixCook.vert",
                         AppCommon::shaderPath + "PerPixCook.frag");
     al.addProgramToLoad(_spTex,
                         AppCommon::shaderPath + "PerPixCookTm.vert",
                         AppCommon::shaderPath + "PerPixCookTm.frag");
 }

Member Data Documentation

◆ _sp

SLGLProgram* AppDemoSceneShaderCook::_sp

private

Definition at line 46 of file AppDemoSceneShaderCook.h.

◆ _spTex

SLGLProgram* AppDemoSceneShaderCook::_spTex

private

Definition at line 47 of file AppDemoSceneShaderCook.h.

◆ _texC

SLGLTexture* AppDemoSceneShaderCook::_texC

private

Definition at line 48 of file AppDemoSceneShaderCook.h.

◆ _texM

SLGLTexture* AppDemoSceneShaderCook::_texM

private

Definition at line 50 of file AppDemoSceneShaderCook.h.

◆ _texN

SLGLTexture* AppDemoSceneShaderCook::_texN

private

Definition at line 49 of file AppDemoSceneShaderCook.h.

◆ _texR

SLGLTexture* AppDemoSceneShaderCook::_texR

private

Definition at line 51 of file AppDemoSceneShaderCook.h.

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

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ AppDemoSceneShaderCook()

Member Function Documentation

◆ assemble()

◆ registerAssetsToLoad()

Member Data Documentation

◆ _sp

◆ _spTex

◆ _texC

◆ _texM

◆ _texN

◆ _texR