Java Code Examples for com.jme3.renderer.Camera#setFrustumPerspective()

/**
 * Creates the camera to use for rendering. Default values are perspective
 * projection with 45° field of view, with near and far values 1 and 1000
 * units respectively.
 */
private void initCamera(){
    cam = new Camera(settings.getWidth(), settings.getHeight());

    cam.setFrustumPerspective(45f, (float)cam.getWidth() / cam.getHeight(), 1f, 1000f);
    cam.setLocation(new Vector3f(0f, 0f, 10f));
    cam.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y);

    renderManager = new RenderManager(renderer);
    //Remy - 09/14/2010 setted the timer in the renderManager
    renderManager.setTimer(timer);
    viewPort = renderManager.createMainView("Default", cam);
    viewPort.setClearFlags(true, true, true);

    // Create a new cam for the gui
    Camera guiCam = new Camera(settings.getWidth(), settings.getHeight());
    guiViewPort = renderManager.createPostView("Gui Default", guiCam);
    guiViewPort.setClearFlags(false, false, false);
}
 

private void parseCamera(Attributes attribs) throws SAXException {
    camera = new Camera(DEFAULT_CAM_WIDTH, DEFAULT_CAM_HEIGHT);
    if (SAXUtil.parseString(attribs.getValue("projectionType"), "perspective").equals("parallel")){
        camera.setParallelProjection(true);
    }
    float fov = SAXUtil.parseFloat(attribs.getValue("fov"), 45f);
    if (fov < FastMath.PI) { 
        // XXX: Most likely, it is in radians..
        fov = fov * FastMath.RAD_TO_DEG;
    }
    camera.setFrustumPerspective(fov, (float)DEFAULT_CAM_WIDTH / DEFAULT_CAM_HEIGHT, 1, 1000);
    
    cameraNode = new CameraNode(attribs.getValue("name"), camera);
    cameraNode.setControlDir(ControlDirection.SpatialToCamera);
    
    node.attachChild(cameraNode);
    node = null;
}
 

private void parseCamera(Attributes attribs) throws SAXException {
    camera = new Camera(DEFAULT_CAM_WIDTH, DEFAULT_CAM_HEIGHT);
    if (SAXUtil.parseString(attribs.getValue("projectionType"), "perspective").equals("parallel")){
        camera.setParallelProjection(true);
    }
    float fov = SAXUtil.parseFloat(attribs.getValue("fov"), 45f);
    if (fov < FastMath.PI) { 
        // XXX: Most likely, it is in radians..
        fov = fov * FastMath.RAD_TO_DEG;
    }
    camera.setFrustumPerspective(fov, (float)DEFAULT_CAM_WIDTH / DEFAULT_CAM_HEIGHT, 1, 1000);
    
    cameraNode = new CameraNode(attribs.getValue("name"), camera);
    cameraNode.setControlDir(ControlDirection.SpatialToCamera);
    
    node.attachChild(cameraNode);
    node = null;
}
 

/**
 * Creates the camera to use for rendering. Default values are perspective
 * projection with 45° field of view, with near and far values 1 and 1000
 * units respectively.
 */
private void initCamera(){
    cam = new Camera(settings.getWidth(), settings.getHeight());

    cam.setFrustumPerspective(45f, (float)cam.getWidth() / cam.getHeight(), 1f, 1000f);
    cam.setLocation(new Vector3f(0f, 0f, 10f));
    cam.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y);

    renderManager = new RenderManager(renderer);
    //Remy - 09/14/2010 setted the timer in the renderManager
    renderManager.setTimer(timer);

    viewPort = renderManager.createMainView("Default", cam);
    viewPort.setClearFlags(true, true, true);

    // Create a new cam for the gui
    Camera guiCam = new Camera(settings.getWidth(), settings.getHeight());
    guiViewPort = renderManager.createPostView("Gui Default", guiCam);
    guiViewPort.setClearFlags(false, false, false);
}
 

/**
 * Creates the camera to use for rendering. Default values are perspective
 * projection with 45° field of view, with near and far values 1 and 1000
 * units respectively.
 */
private void initCamera(){
    cam = new Camera(settings.getWidth(), settings.getHeight());

    cam.setFrustumPerspective(45f, (float)cam.getWidth() / cam.getHeight(), 1f, 1000f);
    cam.setLocation(new Vector3f(0f, 0f, 10f));
    cam.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y);

    renderManager = new RenderManager(renderer);
    //Remy - 09/14/2010 setted the timer in the renderManager
    renderManager.setTimer(timer);

    if (prof != null) {
        renderManager.setAppProfiler(prof);
    }

    viewPort = renderManager.createMainView("Default", cam);
    viewPort.setClearFlags(true, true, true);

    // Create a new cam for the gui
    Camera guiCam = new Camera(settings.getWidth(), settings.getHeight());
    guiViewPort = renderManager.createPostView("Gui Default", guiCam);
    guiViewPort.setClearFlags(false, false, false);
}
 

/**
 * This method converts the given structure to jme camera. Should be used form blender 2.49.
 * 
 * @param structure
 *            camera structure
 * @return jme camera object
 * @throws BlenderFileException
 *             an exception is thrown when there are problems with the
 *             blender file
 */
private CameraNode toCamera249(Structure structure) throws BlenderFileException {
    Camera camera = new Camera(DEFAULT_CAM_WIDTH, DEFAULT_CAM_HEIGHT);
    int type = ((Number) structure.getFieldValue("type")).intValue();
    if (type != 0 && type != 1) {
        LOGGER.log(Level.WARNING, "Unknown camera type: {0}. Perspective camera is being used!", type);
        type = 0;
    }
    // type==0 - perspective; type==1 - orthographic; perspective is used as default
    camera.setParallelProjection(type == 1);
    float aspect = 0;
    float clipsta = ((Number) structure.getFieldValue("clipsta")).floatValue();
    float clipend = ((Number) structure.getFieldValue("clipend")).floatValue();
    if (type == 0) {
        aspect = ((Number) structure.getFieldValue("lens")).floatValue();
    } else {
        aspect = ((Number) structure.getFieldValue("ortho_scale")).floatValue();
    }
    camera.setFrustumPerspective(aspect, camera.getWidth() / camera.getHeight(), clipsta, clipend);
    return new CameraNode(null, camera);
}
 

@Before
public void setUp() {
    filter = new DefaultLightFilter();
    
    cam = new Camera(512, 512);
    cam.setFrustumPerspective(45, 1, 1, 1000);
    cam.setLocation(Vector3f.ZERO);
    cam.lookAtDirection(Vector3f.UNIT_Z, Vector3f.UNIT_Y);
    filter.setCamera(cam);
    
    Box box = new Box(1, 1, 1);
    geom = new Geometry("geom", box);
    geom.setLocalTranslation(0, 0, 10);
    geom.updateGeometricState();
    list = new LightList(geom);
}
 

/**
 * Updates the camera view direction and position based on the light
 */
public void updateLightCamera(Camera lightCam) {
    if (target.getType() == Light.Type.Directional) {
        DirectionalLight dl = (DirectionalLight) target;
        lightCam.setParallelProjection(true);
        lightCam.setLocation(Vector3f.ZERO);
        lightCam.lookAtDirection(dl.getDirection(), Vector3f.UNIT_Y);
        lightCam.setFrustum(-1, 1, -1, 1, 1, -1);
    } else {
        PointLight pl = (PointLight) target;
        lightCam.setParallelProjection(false);
        lightCam.setLocation(pl.getPosition());
        // direction will have to be calculated automatically
        lightCam.setFrustumPerspective(45, 1, 1, 300);
    }
}
 

public GroundCameraManager(Camera cam) {
	super(cam);
	pos = new Point3D(1, 1, 0);
	rotation = new Quaternion().fromAngles((float)AngleUtil.RIGHT, 0, (float)AngleUtil.FLAT);
	cam.setFrustumPerspective(45, (float)cam.getWidth()/cam.getHeight(), 0.01f, 1000);

	applyRotationToCam();
	setMappings();
}
 

public Texture setupOffscreenView(){
    Camera offCamera = new Camera(512, 512);

    offView = renderManager.createPreView("Offscreen View", offCamera);
    offView.setClearFlags(true, true, true);
    offView.setBackgroundColor(ColorRGBA.DarkGray);

    // create offscreen framebuffer
    FrameBuffer offBuffer = new FrameBuffer(512, 512, 1);

    //setup framebuffer's cam
    offCamera.setFrustumPerspective(45f, 1f, 1f, 1000f);
    offCamera.setLocation(new Vector3f(0f, 0f, -5f));
    offCamera.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y);

    //setup framebuffer's texture
    Texture2D offTex = new Texture2D(512, 512, Format.RGBA8);
    offTex.setMinFilter(Texture.MinFilter.Trilinear);
    offTex.setMagFilter(Texture.MagFilter.Bilinear);

    //setup framebuffer to use texture
    offBuffer.setDepthBuffer(Format.Depth);
    offBuffer.setColorTexture(offTex);
    
    //set viewport to render to offscreen framebuffer
    offView.setOutputFrameBuffer(offBuffer);

    // setup framebuffer's scene
    Box boxMesh = new Box(Vector3f.ZERO, 1,1,1);
    Material material = assetManager.loadMaterial("Interface/Logo/Logo.j3m");
    offBox = new Geometry("box", boxMesh);
    offBox.setMaterial(material);

    // attach the scene to the viewport to be rendered
    offView.attachScene(offBox);
    
    return offTex;
}
 

public Texture setupOffscreenView(){
    Camera offCamera = new Camera(512, 512);

    offView = renderManager.createPreView("Offscreen View", offCamera);
    offView.setClearFlags(true, true, true);
    offView.setBackgroundColor(ColorRGBA.DarkGray);

    // create offscreen framebuffer
    FrameBuffer offBuffer = new FrameBuffer(512, 512, 1);

    //setup framebuffer's cam
    offCamera.setFrustumPerspective(45f, 1f, 1f, 1000f);
    offCamera.setLocation(new Vector3f(0f, 0f, -5f));
    offCamera.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y);

    //setup framebuffer's texture
    Texture2D offTex = new Texture2D(512, 512, Format.RGBA8);
    offTex.setMinFilter(Texture.MinFilter.Trilinear);
    offTex.setMagFilter(Texture.MagFilter.Bilinear);

    //setup framebuffer to use texture
    offBuffer.setDepthBuffer(Format.Depth);
    offBuffer.setColorTexture(offTex);
    
    //set viewport to render to offscreen framebuffer
    offView.setOutputFrameBuffer(offBuffer);

    // setup framebuffer's scene
    Box boxMesh = new Box(1, 1, 1);
    Material material = assetManager.loadMaterial("Interface/Logo/Logo.j3m");
    offBox = new Geometry("box", boxMesh);
    offBox.setMaterial(material);

    // attach the scene to the viewport to be rendered
    offView.attachScene(offBox);
    
    return offTex;
}
 

/**
 * Reshape the current view port.
 *
 * @param width  the width.
 * @param height the height.
 */
protected void reshapeCurrentViewPort(int width, int height) {

	ViewPort viewPort = getViewPort();
	Camera camera = viewPort.getCamera();
	int cameraAngle = getCameraAngle();
	float aspect = (float) camera.getWidth() / camera.getHeight();

	if (isMain()) {
		getRenderManager().notifyReshape(width, height);
		camera.setFrustumPerspective(cameraAngle, aspect, 1f, 10000);
		return;
	}

	camera.resize(width, height, true);
	camera.setFrustumPerspective(cameraAngle, aspect, 1f, 10000);

	final List<SceneProcessor> processors = viewPort.getProcessors();

	boolean found = false;
	Iterator<SceneProcessor> iter = processors.iterator();
	while(!found && iter.hasNext()) {
		if (!(iter.next() instanceof AWTFrameProcessor)) {
			found = true;
		}
	}

	if (found) {

		FrameBuffer frameBuffer = new FrameBuffer(width, height, 1);
		frameBuffer.setDepthBuffer(Image.Format.Depth);
		frameBuffer.setColorBuffer(Image.Format.RGBA8);
		frameBuffer.setSrgb(true);

		viewPort.setOutputFrameBuffer(frameBuffer);
	}

	for (final SceneProcessor sceneProcessor : processors) {
		if (!sceneProcessor.isInitialized()) {
			sceneProcessor.initialize(renderManager, viewPort);
		} else {
			sceneProcessor.reshape(viewPort, width, height);
		}
	}
}
 

/**
     * Updates the shadow camera to properly contain the given
     * points (which contain the eye camera frustum corners)
     *
     * @param occluders
     * @param lightCam
     * @param points
     */
    public static void updateShadowCamera(Camera shadowCam, Vector3f[] points) {
        boolean ortho = shadowCam.isParallelProjection();
        shadowCam.setProjectionMatrix(null);

        if (ortho) {
            shadowCam.setFrustum(-1, 1, -1, 1, 1, -1);
        } else {
            shadowCam.setFrustumPerspective(45, 1, 1, 150);
        }

        Matrix4f viewProjMatrix = shadowCam.getViewProjectionMatrix();
        Matrix4f projMatrix = shadowCam.getProjectionMatrix();

        BoundingBox splitBB = computeBoundForPoints(points, viewProjMatrix);

        Vector3f splitMin = splitBB.getMin(null);
        Vector3f splitMax = splitBB.getMax(null);

//        splitMin.z = 0;

        // Create the crop matrix.
        float scaleX, scaleY, scaleZ;
        float offsetX, offsetY, offsetZ;

        scaleX = 2.0f / (splitMax.x - splitMin.x);
        scaleY = 2.0f / (splitMax.y - splitMin.y);
        offsetX = -0.5f * (splitMax.x + splitMin.x) * scaleX;
        offsetY = -0.5f * (splitMax.y + splitMin.y) * scaleY;
        scaleZ = 1.0f / (splitMax.z - splitMin.z);
        offsetZ = -splitMin.z * scaleZ;

        Matrix4f cropMatrix = new Matrix4f(scaleX, 0f, 0f, offsetX,
                0f, scaleY, 0f, offsetY,
                0f, 0f, scaleZ, offsetZ,
                0f, 0f, 0f, 1f);


        Matrix4f result = new Matrix4f();
        result.set(cropMatrix);
        result.multLocal(projMatrix);

        shadowCam.setProjectionMatrix(result);
    }
 

/**
 * This method converts the given structure to jme camera. Should be used form blender 2.5+.
 * 
 * @param structure
 *            camera structure
 * @param sceneStructure
 *            scene structure
 * @return jme camera object
 * @throws BlenderFileException
 *             an exception is thrown when there are problems with the
 *             blender file
 */
private CameraNode toCamera250(Structure structure, Structure sceneStructure) throws BlenderFileException {
    int width = DEFAULT_CAM_WIDTH;
    int height = DEFAULT_CAM_HEIGHT;
    if (sceneStructure != null) {
        Structure renderData = (Structure) sceneStructure.getFieldValue("r");
        width = ((Number) renderData.getFieldValue("xsch")).shortValue();
        height = ((Number) renderData.getFieldValue("ysch")).shortValue();
    }
    Camera camera = new Camera(width, height);
    int type = ((Number) structure.getFieldValue("type")).intValue();
    if (type != 0 && type != 1) {
        LOGGER.log(Level.WARNING, "Unknown camera type: {0}. Perspective camera is being used!", type);
        type = 0;
    }
    // type==0 - perspective; type==1 - orthographic; perspective is used as default
    camera.setParallelProjection(type == 1);
    float aspect = width / (float) height;
    float fovY; // Vertical field of view in degrees
    float clipsta = ((Number) structure.getFieldValue("clipsta")).floatValue();
    float clipend = ((Number) structure.getFieldValue("clipend")).floatValue();
    if (type == 0) {
        // Convert lens MM to vertical degrees in fovY, see Blender rna_Camera_angle_get()
        // Default sensor size prior to 2.60 was 32.
        float sensor = 32.0f;
        boolean sensorVertical = false;
        Number sensorFit = (Number) structure.getFieldValue("sensor_fit");
        if (sensorFit != null) {
            // If sensor_fit is vert (2), then sensor_y is used
            sensorVertical = sensorFit.byteValue() == 2;
            String sensorName = "sensor_x";
            if (sensorVertical) {
                sensorName = "sensor_y";
            }
            sensor = ((Number) structure.getFieldValue(sensorName)).floatValue();
        }
        float focalLength = ((Number) structure.getFieldValue("lens")).floatValue();
        float fov = 2.0f * FastMath.atan((sensor / 2.0f) / focalLength);
        if (sensorVertical) {
            fovY = fov * FastMath.RAD_TO_DEG;
        } else {
            // Convert fov from horizontal to vertical
            fovY = 2.0f * FastMath.atan(FastMath.tan(fov / 2.0f) / aspect) * FastMath.RAD_TO_DEG;
        }
    } else {
        // This probably is not correct.
        fovY = ((Number) structure.getFieldValue("ortho_scale")).floatValue();
    }
    camera.setFrustumPerspective(fovY, aspect, clipsta, clipend);
    return new CameraNode(null, camera);
}
 

/**
     * Updates the shadow camera to properly contain the given points (which
     * contain the eye camera frustum corners)
     *
     * @param shadowCam
     * @param points
     */
    public static void updateShadowCamera(Camera shadowCam, Vector3f[] points) {
        boolean ortho = shadowCam.isParallelProjection();
        shadowCam.setProjectionMatrix(null);

        if (ortho) {
            shadowCam.setFrustum(-1, 1, -1, 1, 1, -1);
        } else {
            shadowCam.setFrustumPerspective(45, 1, 1, 150);
        }

        Matrix4f viewProjMatrix = shadowCam.getViewProjectionMatrix();
        Matrix4f projMatrix = shadowCam.getProjectionMatrix();

        BoundingBox splitBB = computeBoundForPoints(points, viewProjMatrix);

        TempVars vars = TempVars.get();

        Vector3f splitMin = splitBB.getMin(vars.vect1);
        Vector3f splitMax = splitBB.getMax(vars.vect2);

//        splitMin.z = 0;

        // Create the crop matrix.
        float scaleX, scaleY, scaleZ;
        float offsetX, offsetY, offsetZ;

        scaleX = 2.0f / (splitMax.x - splitMin.x);
        scaleY = 2.0f / (splitMax.y - splitMin.y);
        offsetX = -0.5f * (splitMax.x + splitMin.x) * scaleX;
        offsetY = -0.5f * (splitMax.y + splitMin.y) * scaleY;
        scaleZ = 1.0f / (splitMax.z - splitMin.z);
        offsetZ = -splitMin.z * scaleZ;

        Matrix4f cropMatrix = vars.tempMat4;
        cropMatrix.set(scaleX, 0f, 0f, offsetX,
                0f, scaleY, 0f, offsetY,
                0f, 0f, scaleZ, offsetZ,
                0f, 0f, 0f, 1f);


        Matrix4f result = new Matrix4f();
        result.set(cropMatrix);
        result.multLocal(projMatrix);

        vars.release();
        shadowCam.setProjectionMatrix(result);
    }
 

public void setupOffscreenView(){
        offCamera = new Camera(width, height);

        // create a pre-view. a view that is rendered before the main view
        offView = renderManager.createPreView("Offscreen View", offCamera);
        offView.setBackgroundColor(ColorRGBA.DarkGray);
        offView.setClearFlags(true, true, true);
        
        // this will let us know when the scene has been rendered to the 
        // frame buffer
        offView.addProcessor(this);

        // create offscreen framebuffer
        offBuffer = new FrameBuffer(width, height, 1);

        //setup framebuffer's cam
        offCamera.setFrustumPerspective(45f, 1f, 1f, 1000f);
        offCamera.setLocation(new Vector3f(0f, 0f, -5f));
        offCamera.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y);

        //setup framebuffer's texture
//        offTex = new Texture2D(width, height, Format.RGBA8);

        //setup framebuffer to use renderbuffer
        // this is faster for gpu -> cpu copies
        offBuffer.setDepthBuffer(Format.Depth);
        offBuffer.setColorBuffer(Format.RGBA8);
//        offBuffer.setColorTexture(offTex);
        
        //set viewport to render to offscreen framebuffer
        offView.setOutputFrameBuffer(offBuffer);

        // setup framebuffer's scene
        Box boxMesh = new Box(Vector3f.ZERO, 1,1,1);
        Material material = assetManager.loadMaterial("Interface/Logo/Logo.j3m");
        offBox = new Geometry("box", boxMesh);
        offBox.setMaterial(material);

        // attach the scene to the viewport to be rendered
        offView.attachScene(offBox);
    }
 

public Texture setupOffscreenView(){
    Camera offCamera = new Camera(512, 512);
 
    offView = renderManager.createPreView("Offscreen View", offCamera);
    offView.setClearFlags(true, true, true);
    offView.setBackgroundColor(ColorRGBA.DarkGray);
 
    // create offscreen framebuffer
    FrameBuffer offBuffer = new FrameBuffer(512, 512, 1);
 
    //setup framebuffer's cam
    offCamera.setFrustumPerspective(45f, 1f, 1f, 1000f);
    offCamera.setLocation(new Vector3f(0f, 0f, -5f));
    offCamera.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y);
 
    //setup framebuffer's texture
    TextureCubeMap offTex = new TextureCubeMap(512, 512, Format.RGBA8);
    offTex.setMinFilter(Texture.MinFilter.Trilinear);
    offTex.setMagFilter(Texture.MagFilter.Bilinear);
 
    //setup framebuffer to use texture
    offBuffer.setDepthBuffer(Format.Depth);
    offBuffer.setMultiTarget(true);
    offBuffer.addColorTexture(offTex, TextureCubeMap.Face.NegativeX);
    offBuffer.addColorTexture(offTex, TextureCubeMap.Face.PositiveX);
    offBuffer.addColorTexture(offTex, TextureCubeMap.Face.NegativeY);
    offBuffer.addColorTexture(offTex, TextureCubeMap.Face.PositiveY);
    offBuffer.addColorTexture(offTex, TextureCubeMap.Face.NegativeZ);
    offBuffer.addColorTexture(offTex, TextureCubeMap.Face.PositiveZ);
    
    //set viewport to render to offscreen framebuffer
    offView.setOutputFrameBuffer(offBuffer);
 
    // setup framebuffer's scene
    Box boxMesh = new Box( 1,1,1);
    Material material = assetManager.loadMaterial("Interface/Logo/Logo.j3m");
    offBox = new Geometry("box", boxMesh);
    offBox.setMaterial(material);
 
    // attach the scene to the viewport to be rendered
    offView.attachScene(offBox);
 
    return offTex;
}
 

public void setupOffscreenView(){
        offCamera = new Camera(width, height);

        // create a pre-view. a view that is rendered before the main view
        offView = renderManager.createPreView("Offscreen View", offCamera);
        offView.setBackgroundColor(ColorRGBA.DarkGray);
        offView.setClearFlags(true, true, true);
        
        // this will let us know when the scene has been rendered to the 
        // frame buffer
        offView.addProcessor(this);

        // create offscreen framebuffer
        offBuffer = new FrameBuffer(width, height, 1);

        //setup framebuffer's cam
        offCamera.setFrustumPerspective(45f, 1f, 1f, 1000f);
        offCamera.setLocation(new Vector3f(0f, 0f, -5f));
        offCamera.lookAt(new Vector3f(0f, 0f, 0f), Vector3f.UNIT_Y);

        //setup framebuffer's texture
//        offTex = new Texture2D(width, height, Format.RGBA8);

        //setup framebuffer to use renderbuffer
        // this is faster for gpu -> cpu copies
        offBuffer.setDepthBuffer(Format.Depth);
        offBuffer.setColorBuffer(Format.RGBA8);
//        offBuffer.setColorTexture(offTex);
        
        //set viewport to render to offscreen framebuffer
        offView.setOutputFrameBuffer(offBuffer);

        // setup framebuffer's scene
        Box boxMesh = new Box(1, 1, 1);
        Material material = assetManager.loadMaterial("Interface/Logo/Logo.j3m");
        offBox = new Geometry("box", boxMesh);
        offBox.setMaterial(material);

        // attach the scene to the viewport to be rendered
        offView.attachScene(offBox);
    }