Method draw

test/CameraLensShiftTest/src/CameraLensShiftTestApp.cpp:73–128

}

void CameraLensShiftTestApp::draw()
{
	gl::clear(); 

	gl::enableDepthRead();
	gl::enableDepthWrite();

	// draw the overview of the scene in the left half of the window
	gl::pushViewport();
	gl::viewport( ivec2(0, 0), ivec2(getWindowWidth() / 2, getWindowHeight()) );

	gl::pushMatrices();
	gl::setMatrices( mOverview.getCamera() );

	render();
	
	gl::color( Color(0, 1, 1) );
	gl::drawFrustum( mCamera );

	gl::popMatrices();

	gl::popViewport();

	// draw what the camera sees in the right half of the window
	gl::pushViewport();
	gl::viewport( ivec2(getWindowWidth() / 2, 0), ivec2(getWindowWidth() / 2, getWindowHeight()) );

	gl::pushMatrices();
	gl::setMatrices( mCamera );

	render();

	gl::popMatrices();

	gl::popViewport();
	
	//
	gl::disableDepthWrite();
	gl::disableDepthRead();

	// draw separator
	gl::color( Color(0.25f, 0.25f, 0.25f) );
	gl::drawLine( vec2( getWindowWidth() * 0.5f, 0.0f ),  vec2( getWindowWidth() * 0.5f, getWindowHeight() ) );

	// draw info
	gl::enableAlphaBlending();
	gl::drawString( 
		(boost::format("Lens Shift X: %02.2f\nLens Shift Y: %02.2f\n\nUse cursor keys to adjust lens shift,\nuse mouse to control overview camera") 
			% mCamera.getLensShiftHorizontal() % mCamera.getLensShiftVertical() ).str(),
		vec2( 10, 10 ), Color::white(), mFont );
	gl::drawString( "Overview of the scene",
		vec2( 10, getWindowHeight() - 28 ), Color::white(), mFont );
	gl::drawString( "View from the camera",
		vec2( 0.5f * getWindowWidth() + 10, getWindowHeight() - 28 ), Color::white(), mFont );
	gl::disableAlphaBlending();
}

void CameraLensShiftTestApp::mouseDown( MouseEvent event )