Multiple views: orthogonal and perspective?

Troubleshooting General Help
1

Is it possible to have both orthogonal and perspective views of the same scene simultaneously? If I call setParallelProjection(false) on a second camera, I lose the second view altogether.



[java]

public void simpleInitApp()

{

statsView.removeFromParent();



flyCam.setDragToRotate(true);

//flyCam.setMoveSpeed(10f);



cam.setParallelProjection(true);

float aspect = (float) cam.getWidth() / cam.getHeight();

float frustumSize = 1f;

cam.setFrustum(-1000, 1000, -aspect * frustumSize, aspect * frustumSize, frustumSize, -frustumSize);



rootNode.attachChild(SkyFactory.createSky(assetManager, "Textures/sky2.jpg", true));

Geometry teaGeom = (Geometry) assetManager.loadModel("Models/Teapot/Teapot.obj");

rootNode.attachChild(teaGeom);



DirectionalLight dl = new DirectionalLight();

dl.setColor(ColorRGBA.White);

dl.setDirection(Vector3f.UNIT_XYZ.negate());

rootNode.addLight(dl);



// set up second view

Camera cam2 = cam.clone();

cam2.setViewPort(0.6f, 0.99f, 0.05f, 0.45f);

cam2.setLocation(new Vector3f(0, 1, 10));

cam2.lookAt(Vector3f.ZERO, Vector3f.UNIT_Y);

cam2.setFrustumFar(250f);

//cam2.setParallelProjection(false);



ViewPort view2 = renderManager.createMainView("Inset view", cam2);

view2.attachScene(rootNode);

}

[/java]

2

The issue happens is because you’re converting a parallel projection camera (setup with setFrustum) to a perspective camera (setup with setFrustumPerspective). The values are incompatible with eachover. To fix the issue, call setFrustumPerspective on cam2