Example #1
0
void ShadowMapSample::setup()
{
	glPolygonOffset( 1.0f, 1.0f );
	glEnable( GL_LIGHTING );
	glEnable( GL_DEPTH_TEST );

	mPaused = false;
	mLookThroughCamera = true;
	mDrawDepthMap = false;
	
	mCamera = new CameraPersp( getWindowWidth(), getWindowHeight(), 45.0f );
	mCamera->lookAt( vec3( 5, 5, 5 ), vec3( 0, 0, 0 ) );
	mCamera->setPerspective( 45.0f, getWindowAspectRatio(), 0.1f, 100.0f );
	
	mLight = new gl::Light( gl::Light::POINT, 0 );
	mLight->lookAt( vec3( 1, 5, 1 ), vec3( 0, 0, 0 ) );
	mLight->setAmbient( Color( 0.3f, 0.3f, 0.3f ) );
	mLight->setDiffuse( Color( 0.5f, 0.5f, 0.5f ) );
	mLight->setSpecular( Color( 0.5f, 0.5f, 0.5f ) );
	mLight->setShadowParams( 60.0f, 0.5f, 8.0f );
	mLight->update( *mCamera );
	mLight->enable();

	gl::Material torusMaterial;
	torusMaterial.setSpecular( BLUE );
	torusMaterial.setDiffuse( BLUE );
	torusMaterial.setAmbient( Color( 0.1f, 0.1f, 0.1f ) );
	torusMaterial.setShininess( 25.0f );

	gl::Material backboardMaterial;
	backboardMaterial.setAmbient( RED );
	backboardMaterial.setDiffuse( RED );	
	backboardMaterial.setShininess( 1.0f );

	initShadowMap();

	mTorus = gl::DisplayList( GL_COMPILE );
	mTorus.newList();
		gl::drawTorus( 1.0f, 0.3f, 32, 64 );
	mTorus.endList();
	mTorus.setMaterial( torusMaterial );
	
	mBackboard = gl::DisplayList( GL_COMPILE );
	mBackboard.newList();
		gl::drawCube( vec3( 0.0f, -2.5f, 0.0f ), vec3( 5.0f, 0.1f, 5.0f ) );
	mBackboard.endList();
	mBackboard.setMaterial( backboardMaterial );

	mShader = gl::GlslProg( loadResource( RES_SHADOWMAP_VERT ), loadResource( RES_SHADOWMAP_FRAG ) );
	mShader.bind();
	mShader.uniform( "depthTexture", 0 );
}
/* 
 * @Description: setup function ( more aesthetic as could be in constructor here )
 * @param: none
 * @return: none
 */
void Base_ThreeD_ProjectApp::setup()
{
	RENDER_MODE = 3;
	
	glEnable( GL_LIGHTING );
	glEnable( GL_DEPTH_TEST );
	glEnable(GL_RESCALE_NORMAL); //important if things are being scaled as OpenGL also scales normals ( for proper lighting they need to be normalized )
	
	mParams = params::InterfaceGl( "3D_Scene_Base", Vec2i( 225, 125 ) );
	mParams.addParam( "Framerate", &mCurrFramerate, "", true );
	mParams.addParam( "Eye Distance", &mCameraDistance, "min=-100.0 max=-5.0 step=1.0 keyIncr== keyDecr=-");
	mParams.addParam( "Lighting On", &mLightingOn, "key=l");
	mParams.addParam( "Show/Hide Params", &mShowParams, "key=x");
	mParams.addSeparator();
    
	
	mCurrFramerate = 0.0f;
	mLightingOn = true;
	mViewFromLight = false;
	mShowParams = true;
	
	//create camera
	mCameraDistance = CAM_POSITION_INIT.z;
	mEye		= Vec3f(CAM_POSITION_INIT.x, CAM_POSITION_INIT.y, CAM_POSITION_INIT.z);
	mCenter		= Vec3f::zero();
	mUp			= Vec3f::yAxis();
	
	mCam = new CameraPersp( getWindowWidth(), getWindowHeight(), 180.0f );
	mCam->lookAt(mEye, mCenter, mUp);
	mCam->setPerspective( 45.0f, getWindowAspectRatio(), 1.0f, 50.0f );
	gl::setMatrices( *mCam );
	
	//create light
	mLight = new gl::Light( gl::Light::DIRECTIONAL, 0 );
	mLight->lookAt( Vec3f(LIGHT_POSITION_INIT.x, LIGHT_POSITION_INIT.y * -1, LIGHT_POSITION_INIT.z), Vec3f( 0, 0, 0 ) );
	mLight->setAmbient( Color( 1.0f, 1.0f, 1.0f ) );
	mLight->setDiffuse( Color( 1.0f, 1.0f, 1.0f ) );
	mLight->setSpecular( Color( 1.0f, 1.0f, 1.0f ) );
	mLight->setShadowParams( 100.0f, 1.0f, 20.0f );
	mLight->update( *mCam );
	mLight->enable();
	
	//create light ref
	mLightRef = new gl::Light( gl::Light::DIRECTIONAL, 0 );
	mLightRef->lookAt( LIGHT_POSITION_INIT, Vec3f( 0, 0, 0 ) );
	mLightRef->setShadowParams( 100.0f, 1.0f, 20.0f );
	
	//DEBUG Test objects
	ci::ColorA pink( CM_RGB, 0.84f, 0.49f, 0.50f, 1.0f );
	ci::ColorA green( CM_RGB, 0.39f, 0.78f, 0.64f, 1.0f );
	ci::ColorA blue( CM_RGB, 0.32f, 0.59f, 0.81f, 1.0f );
	ci::ColorA orange( CM_RGB, 0.77f, 0.35f, 0.35f, 1.0f );
	
	gl::Material torusMaterial;
	torusMaterial.setSpecular( ColorA( 1.0, 1.0, 1.0, 1.0 ) );
	torusMaterial.setDiffuse( pink );
	torusMaterial.setAmbient( ColorA( 0.3, 0.3, 0.3, 1.0 ) );
	torusMaterial.setShininess( 25.0f );
	
	gl::Material boardMaterial;
	boardMaterial.setSpecular( ColorA( 0.0, 0.0, 0.0, 0.0 ) );
	boardMaterial.setAmbient( ColorA( 0.3, 0.3, 0.3, 1.0 ) );
	boardMaterial.setDiffuse( green );	
	boardMaterial.setShininess( 0.0f );
	
	gl::Material boxMaterial;
	boxMaterial.setSpecular( ColorA( 0.0, 0.0, 0.0, 0.0 ) );
	boxMaterial.setAmbient( ColorA( 0.3, 0.3, 0.3, 1.0 ) );
	boxMaterial.setDiffuse( blue );	
	boxMaterial.setShininess( 0.0f );
	
	gl::Material sphereMaterial;
	sphereMaterial.setSpecular( ColorA( 1.0, 1.0, 1.0, 1.0 ) );
	sphereMaterial.setAmbient( ColorA( 0.3, 0.3, 0.3, 1.0 ) );
	sphereMaterial.setDiffuse( orange ) ;	
	sphereMaterial.setShininess( 35.0f );	
	
    //using DisplayLists for simplicity but highly recommend to use VBO's for serious work ( as DisplayLists will be deprecated soon ... and speed difference in now negligible )
	mTorus = gl::DisplayList( GL_COMPILE );
	mTorus.newList();
	gl::drawTorus( 1.0f, 0.3f, 32, 64 );
	mTorus.endList();
	mTorus.setMaterial( torusMaterial );
	
	mBoard = gl::DisplayList( GL_COMPILE );
	mBoard.newList();
	gl::drawCube( Vec3f( 0.0f, 0.0f, 0.0f ), Vec3f( 10.0f, 0.1f, 10.0f ) );
	mBoard.endList();
	mBoard.setMaterial( boardMaterial );
	
	mBox = gl::DisplayList( GL_COMPILE );
	mBox.newList();
	gl::drawCube( Vec3f( 0.0f, 0.0f, 0.0f ), Vec3f( 1.0f, 1.0f, 1.0f ) );
	mBox.endList();
	mBox.setMaterial( boxMaterial );
	
	mSphere = gl::DisplayList( GL_COMPILE );
	mSphere.newList();
	gl::drawSphere( Vec3f::zero(), 0.8f, 30 );
	mSphere.endList();
	mSphere.setMaterial( sphereMaterial );
	
    //noise texture required for SSAO calculations
	mRandomNoise = gl::Texture( loadImage( loadResource( NOISE_SAMPLER ) ) );
	
	initFBOs();
	initShaders();
}