Examples with Spatial com.jme3.scene.Spatial used on opensource projects

Example 26 with Spatial

use of com.jme3.scene.Spatial in project jmonkeyengine by jMonkeyEngine.

the class VRViewManagerOpenVR method update.

@Override
public void update(float tpf) {
    if (environment != null) {
        // grab the observer
        Object obs = environment.getObserver();
        Quaternion objRot;
        Vector3f objPos;
        if (obs instanceof Camera) {
            objRot = ((Camera) obs).getRotation();
            objPos = ((Camera) obs).getLocation();
        } else {
            objRot = ((Spatial) obs).getWorldRotation();
            objPos = ((Spatial) obs).getWorldTranslation();
        }
        // grab the hardware handle
        VRAPI dev = environment.getVRHardware();
        if (dev != null) {
            // update the HMD's position & orientation
            dev.updatePose();
            dev.getPositionAndOrientation(hmdPos, hmdRot);
            if (obs != null) {
                // update hmdPos based on obs rotation
                finalRotation.set(objRot);
                finalRotation.mult(hmdPos, hmdPos);
                finalRotation.multLocal(hmdRot);
            }
            finalizeCamera(dev.getHMDVectorPoseLeftEye(), objPos, getLeftCamera());
            finalizeCamera(dev.getHMDVectorPoseRightEye(), objPos, getRightCamera());
        } else {
            getLeftCamera().setFrame(objPos, objRot);
            getRightCamera().setFrame(objPos, objRot);
        }
        if (environment.hasTraditionalGUIOverlay()) {
            // update the mouse?
            environment.getVRMouseManager().update(tpf);
            // update GUI position?
            if (environment.getVRGUIManager().wantsReposition || environment.getVRGUIManager().getPositioningMode() != VRGUIPositioningMode.MANUAL) {
                environment.getVRGUIManager().positionGuiNow(tpf);
                environment.getVRGUIManager().updateGuiQuadGeometricState();
            }
        }
    } else {
        throw new IllegalStateException("This VR view manager is not attached to any VR environment.");
    }
}

Example 27 with Spatial

use of com.jme3.scene.Spatial in project jmonkeyengine by jMonkeyEngine.

the class VRViewManagerOpenVR method setupViewBuffers.

private ViewPort setupViewBuffers(Camera cam, String viewName) {
    if (environment != null) {
        if (environment.getApplication() != null) {
            // create offscreen framebuffer
            FrameBuffer offBufferLeft = new FrameBuffer(cam.getWidth(), cam.getHeight(), 1);
            //offBufferLeft.setSrgb(true);
            //setup framebuffer's texture
            Texture2D offTex = new Texture2D(cam.getWidth(), cam.getHeight(), Image.Format.RGBA8);
            offTex.setMinFilter(Texture.MinFilter.BilinearNoMipMaps);
            offTex.setMagFilter(Texture.MagFilter.Bilinear);
            //setup framebuffer to use texture
            offBufferLeft.setDepthBuffer(Image.Format.Depth);
            offBufferLeft.setColorTexture(offTex);
            ViewPort viewPort = environment.getApplication().getRenderManager().createPreView(viewName, cam);
            viewPort.setClearFlags(true, true, true);
            viewPort.setBackgroundColor(ColorRGBA.Black);
            Iterator<Spatial> spatialIter = environment.getApplication().getViewPort().getScenes().iterator();
            while (spatialIter.hasNext()) {
                viewPort.attachScene(spatialIter.next());
            }
            //set viewport to render to offscreen framebuffer
            viewPort.setOutputFrameBuffer(offBufferLeft);
            return viewPort;
        } else {
            throw new IllegalStateException("This VR environment is not attached to any application.");
        }
    } else {
        throw new IllegalStateException("This VR view manager is not attached to any VR environment.");
    }
}

Example 28 with Spatial

use of com.jme3.scene.Spatial in project jmonkeyengine by jMonkeyEngine.

the class PssmShadowRenderer method postQueue.

@SuppressWarnings("fallthrough")
public void postQueue(RenderQueue rq) {
    for (Spatial scene : viewPort.getScenes()) {
        ShadowUtil.getGeometriesInCamFrustum(scene, viewPort.getCamera(), ShadowMode.Receive, lightReceivers);
    }
    Camera viewCam = viewPort.getCamera();
    float zFar = zFarOverride;
    if (zFar == 0) {
        zFar = viewCam.getFrustumFar();
    }
    //We prevent computing the frustum points and splits with zeroed or negative near clip value
    float frustumNear = Math.max(viewCam.getFrustumNear(), 0.001f);
    ShadowUtil.updateFrustumPoints(viewCam, frustumNear, zFar, 1.0f, points);
    //shadowCam.setDirection(direction);
    shadowCam.getRotation().lookAt(direction, shadowCam.getUp());
    shadowCam.update();
    shadowCam.updateViewProjection();
    PssmShadowUtil.updateFrustumSplits(splitsArray, frustumNear, zFar, lambda);
    switch(splitsArray.length) {
        case 5:
            splits.a = splitsArray[4];
        case 4:
            splits.b = splitsArray[3];
        case 3:
            splits.g = splitsArray[2];
        case 2:
        case 1:
            splits.r = splitsArray[1];
            break;
    }
    Renderer r = renderManager.getRenderer();
    renderManager.setForcedMaterial(preshadowMat);
    renderManager.setForcedTechnique("PreShadow");
    for (int i = 0; i < nbSplits; i++) {
        // update frustum points based on current camera and split
        ShadowUtil.updateFrustumPoints(viewCam, splitsArray[i], splitsArray[i + 1], 1.0f, points);
        //Updating shadow cam with curent split frustra
        ShadowUtil.updateShadowCamera(viewPort, lightReceivers, shadowCam, points, splitOccluders, shadowMapSize);
        //saving light view projection matrix for this split            
        lightViewProjectionsMatrices[i].set(shadowCam.getViewProjectionMatrix());
        renderManager.setCamera(shadowCam, false);
        if (debugfrustums) {
            //                    frustrumFromBound(b.casterBB,ColorRGBA.Blue );
            //                    frustrumFromBound(b.receiverBB,ColorRGBA.Green );
            //                    frustrumFromBound(b.splitBB,ColorRGBA.Yellow );
            ((Node) viewPort.getScenes().get(0)).attachChild(createFrustum(points, i));
            ShadowUtil.updateFrustumPoints2(shadowCam, points);
            ((Node) viewPort.getScenes().get(0)).attachChild(createFrustum(points, i));
        }
        r.setFrameBuffer(shadowFB[i]);
        r.clearBuffers(true, true, true);
        // render shadow casters to shadow map
        viewPort.getQueue().renderShadowQueue(splitOccluders, renderManager, shadowCam, true);
    }
    debugfrustums = false;
    //restore setting for future rendering
    r.setFrameBuffer(viewPort.getOutputFrameBuffer());
    renderManager.setForcedMaterial(null);
    renderManager.setForcedTechnique(null);
    renderManager.setCamera(viewCam, false);
}

Example 29 with Spatial

use of com.jme3.scene.Spatial in project jmonkeyengine by jMonkeyEngine.

the class ShadowUtil method addGeometriesInCamFrustumAndViewPortFromNode.

/**
     * Helper function to recursively collect the geometries for getLitGeometriesInViewPort function.
     * 
     * @param vpCamera the viewPort camera 
     * @param cameras the camera array to check geometries against, representing the light viewspace
     * @param scene the Node to traverse or geometry to possibly add
     * @param outputGeometryList the output list of all geometries that are in the camera frustum
     */
private static void addGeometriesInCamFrustumAndViewPortFromNode(Camera vpCamera, Camera[] cameras, Spatial scene, RenderQueue.ShadowMode mode, GeometryList outputGeometryList) {
    if (scene.getCullHint() == Spatial.CullHint.Always)
        return;
    boolean inFrustum = false;
    for (int j = 0; j < cameras.length && inFrustum == false; j++) {
        Camera camera = cameras[j];
        int planeState = camera.getPlaneState();
        camera.setPlaneState(0);
        inFrustum = camera.contains(scene.getWorldBound()) != Camera.FrustumIntersect.Outside && scene.checkCulling(vpCamera);
        camera.setPlaneState(planeState);
    }
    if (inFrustum) {
        if (scene instanceof Node) {
            Node node = (Node) scene;
            for (Spatial child : node.getChildren()) {
                addGeometriesInCamFrustumAndViewPortFromNode(vpCamera, cameras, child, mode, outputGeometryList);
            }
        } else if (scene instanceof Geometry) {
            if (checkShadowMode(scene.getShadowMode(), mode) && !((Geometry) scene).isGrouped()) {
                outputGeometryList.add((Geometry) scene);
            }
        }
    }
}

Example 30 with Spatial

use of com.jme3.scene.Spatial in project jmonkeyengine by jMonkeyEngine.

the class ShadowUtil method updateShadowCamera.

/**
     * Updates the shadow camera to properly contain the given points (which
     * contain the eye camera frustum corners) and the shadow occluder objects
     * collected through the traverse of the scene hierarchy
     */
public static void updateShadowCamera(ViewPort viewPort, GeometryList receivers, Camera shadowCam, Vector3f[] points, GeometryList splitOccluders, float shadowMapSize) {
    boolean ortho = shadowCam.isParallelProjection();
    shadowCam.setProjectionMatrix(null);
    if (ortho) {
        shadowCam.setFrustum(-shadowCam.getFrustumFar(), shadowCam.getFrustumFar(), -1, 1, 1, -1);
    }
    // create transform to rotate points to viewspace        
    Matrix4f viewProjMatrix = shadowCam.getViewProjectionMatrix();
    BoundingBox splitBB = computeBoundForPoints(points, viewProjMatrix);
    TempVars vars = TempVars.get();
    BoundingBox casterBB = new BoundingBox();
    BoundingBox receiverBB = new BoundingBox();
    int casterCount = 0, receiverCount = 0;
    for (int i = 0; i < receivers.size(); i++) {
        // convert bounding box to light's viewproj space
        Geometry receiver = receivers.get(i);
        BoundingVolume bv = receiver.getWorldBound();
        BoundingVolume recvBox = bv.transform(viewProjMatrix, vars.bbox);
        if (splitBB.intersects(recvBox)) {
            //Nehon : prevent NaN and infinity values to screw the final bounding box
            if (!Float.isNaN(recvBox.getCenter().x) && !Float.isInfinite(recvBox.getCenter().x)) {
                receiverBB.mergeLocal(recvBox);
                receiverCount++;
            }
        }
    }
    // collect splitOccluders through scene recursive traverse
    OccludersExtractor occExt = new OccludersExtractor(viewProjMatrix, casterCount, splitBB, casterBB, splitOccluders, vars);
    for (Spatial scene : viewPort.getScenes()) {
        occExt.addOccluders(scene);
    }
    casterCount = occExt.casterCount;
    //Nehon 08/18/2010 this is to avoid shadow bleeding when the ground is set to only receive shadows
    if (casterCount != receiverCount) {
        casterBB.setXExtent(casterBB.getXExtent() + 2.0f);
        casterBB.setYExtent(casterBB.getYExtent() + 2.0f);
        casterBB.setZExtent(casterBB.getZExtent() + 2.0f);
    }
    Vector3f casterMin = casterBB.getMin(vars.vect1);
    Vector3f casterMax = casterBB.getMax(vars.vect2);
    Vector3f receiverMin = receiverBB.getMin(vars.vect3);
    Vector3f receiverMax = receiverBB.getMax(vars.vect4);
    Vector3f splitMin = splitBB.getMin(vars.vect5);
    Vector3f splitMax = splitBB.getMax(vars.vect6);
    splitMin.z = 0;
    //        if (!ortho) {
    //            shadowCam.setFrustumPerspective(45, 1, 1, splitMax.z);
    //        }
    Matrix4f projMatrix = shadowCam.getProjectionMatrix();
    Vector3f cropMin = vars.vect7;
    Vector3f cropMax = vars.vect8;
    // IMPORTANT: Special handling for Z values
    cropMin.x = max(max(casterMin.x, receiverMin.x), splitMin.x);
    cropMax.x = min(min(casterMax.x, receiverMax.x), splitMax.x);
    cropMin.y = max(max(casterMin.y, receiverMin.y), splitMin.y);
    cropMax.y = min(min(casterMax.y, receiverMax.y), splitMax.y);
    cropMin.z = min(casterMin.z, splitMin.z);
    cropMax.z = min(receiverMax.z, splitMax.z);
    // Create the crop matrix.
    float scaleX, scaleY, scaleZ;
    float offsetX, offsetY, offsetZ;
    scaleX = (2.0f) / (cropMax.x - cropMin.x);
    scaleY = (2.0f) / (cropMax.y - cropMin.y);
    //Shadow map stabilization approximation from shaderX 7
    //from Practical Cascaded Shadow maps adapted to PSSM
    //scale stabilization
    float halfTextureSize = shadowMapSize * 0.5f;
    if (halfTextureSize != 0 && scaleX > 0 && scaleY > 0) {
        float scaleQuantizer = 0.1f;
        scaleX = 1.0f / FastMath.ceil(1.0f / scaleX * scaleQuantizer) * scaleQuantizer;
        scaleY = 1.0f / FastMath.ceil(1.0f / scaleY * scaleQuantizer) * scaleQuantizer;
    }
    offsetX = -0.5f * (cropMax.x + cropMin.x) * scaleX;
    offsetY = -0.5f * (cropMax.y + cropMin.y) * scaleY;
    //offset stabilization
    if (halfTextureSize != 0 && scaleX > 0 && scaleY > 0) {
        offsetX = FastMath.ceil(offsetX * halfTextureSize) / halfTextureSize;
        offsetY = FastMath.ceil(offsetY * halfTextureSize) / halfTextureSize;
    }
    scaleZ = 1.0f / (cropMax.z - cropMin.z);
    offsetZ = -cropMin.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);
}