void ShadowScene::render(){
ShaderManager & shaderManager = ShaderManager::getInstance();
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, iWindowWidth, iWindowHeight);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0, float(iWindowWidth)/float(iWindowHeight), 0.4, 1000.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glPushMatrix();
m_pCam->lookAt();
shaderManager.getShader("light")->Activate();
shaderManager.getShader("light")->setUniformMatrix4fv("eyematrix",shadowmatrix);
shaderManager.getShader("light")->Desactivate();
renderEnvironment(false);
glPopMatrix();
}
void ShadowScene::preRender(){
//Render the depth on a texture, form light point of view
glViewport(0, 0, (GLint)iShadowMapWidth, (GLint)iShadowMapHeight);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(spotCutOff0*2.0+fallOff0*2.0, float(iShadowMapWidth)/float(iShadowMapHeight), 0.4, 1000.0);
glGetFloatv(GL_PROJECTION_MATRIX,projectionMatrix);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
m_pShadowMapFBO->activate();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glPushMatrix();
glLoadIdentity();
//light point of view
glTranslatef(-m_fLightDistance[0],-m_fLightDistance[1],-m_fLightDistance[2]);
glRotatef(-fAngle,0.0,1.0,0.0);
glTranslatef(-m_fLightPosition[0],-m_fLightPosition[1],-m_fLightPosition[2]);
glGetFloatv(GL_MODELVIEW_MATRIX,modelviewMatrix);
glPushMatrix();
glLoadIdentity();
glMultMatrixf (projectionMatrix);
glMultMatrixf (modelviewMatrix);
glGetFloatv(GL_MODELVIEW_MATRIX, shadowmatrix);
glPopMatrix();
glCullFace(GL_FRONT);
renderEnvironment(true);
glCullFace(GL_BACK);
glPopMatrix();
m_pShadowMapFBO->desactivate();
}
/**
* Deals with screen events. Must be called every time the screen is redraw.
*/
void display( void )
{
glClearColor( fabs( colorGrid - 1.0 ), fabs( colorGrid - 1.0 ), fabs( colorGrid - 1.0 ), 1.0 );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
renderGrid( );
glPushMatrix( );
{
path = 0;
renderEnvironment( );
renderTree( env.getValidPaths()->_root, 0);
}
glPopMatrix( );
glutSwapBuffers( );
}
