//----------------------------------------------------------
void ofGLRenderer::setupScreenPerspective(float width, float height, float fov, float nearDist, float farDist) {
float viewW, viewH;
if(width<0 || height<0){
ofRectangle currentViewport = getCurrentViewport();
viewW = currentViewport.width;
viewH = currentViewport.height;
}else{
viewW = width;
viewH = height;
}
float eyeX = viewW / 2;
float eyeY = viewH / 2;
float halfFov = PI * fov / 360;
float theTan = tanf(halfFov);
float dist = eyeY / theTan;
float aspect = (float) viewW / viewH;
if(nearDist == 0) nearDist = dist / 10.0f;
if(farDist == 0) farDist = dist * 10.0f;
matrixMode(OF_MATRIX_PROJECTION);
ofMatrix4x4 persp;
persp.makePerspectiveMatrix(fov, aspect, nearDist, farDist);
loadMatrix( persp );
matrixMode(OF_MATRIX_MODELVIEW);
ofMatrix4x4 lookAt;
lookAt.makeLookAtViewMatrix( ofVec3f(eyeX, eyeY, dist), ofVec3f(eyeX, eyeY, 0), ofVec3f(0, 1, 0) );
loadViewMatrix(lookAt);
}
// コンストラクタ
CameraWorkManager::CameraWorkManager() :
m_CurCamMode(RotateCamOnGazePoint),
//m_dTilt(DX_PI*0.5),
m_dTilt(DX_PI*0.05),
m_dHead(0),
m_dCamDistFrmFP(100.0),
m_dCamHight(30.0),
m_dDstCamToTrgtDef(30.0),
m_TrgtHight(20.0),
m_MViewLocal( MGetIdent() ),
m_MViewWorld( MGetIdent() )
{
m_dSqDstCamToTrgtDef = m_dDstCamToTrgtDef * m_dDstCamToTrgtDef;
m_vFinalCamPos = Vector3D(0,m_dCamHight,0);
m_TargetPos = Vector3D(0,0,0);
// カメラのビュー行列を外部ファイルから変数に読み込む
loadViewMatrix();
}
//----------------------------------------------------------
void ofGLRenderer::setupScreenOrtho(float width, float height, float nearDist, float farDist) {
float viewW, viewH;
if(width<0 || height<0){
ofRectangle currentViewport = getCurrentViewport();
viewW = currentViewport.width;
viewH = currentViewport.height;
}else{
viewW = width;
viewH = height;
}
ofMatrix4x4 ortho;
ortho = ofMatrix4x4::newOrthoMatrix(0, viewW, 0, viewH, nearDist, farDist);
matrixMode(OF_MATRIX_PROJECTION);
loadMatrix(ortho); // make ortho our new projection matrix.
matrixMode(OF_MATRIX_MODELVIEW);
loadViewMatrix(ofMatrix4x4::newIdentityMatrix());
}