Examples with Quad com.jme3.scene.shape.Quad used on opensource projects

Example 61 with Quad

use of com.jme3.scene.shape.Quad in project jmonkeyengine by jMonkeyEngine.

the class VRGuiManager method getGuiQuad.

/**
	 * Create a GUI quad for the given camera.
	 * @param sourceCam the camera
	 * @return a GUI quad for the given camera.
	 */
private Spatial getGuiQuad(Camera sourceCam) {
    if (environment != null) {
        if (environment.getApplication() != null) {
            if (guiQuadNode == null) {
                Vector2f guiCanvasSize = getCanvasSize();
                Camera offCamera = sourceCam.clone();
                offCamera.setParallelProjection(true);
                offCamera.setLocation(Vector3f.ZERO);
                offCamera.lookAt(Vector3f.UNIT_Z, Vector3f.UNIT_Y);
                offView = environment.getApplication().getRenderManager().createPreView("GUI View", offCamera);
                offView.setClearFlags(true, true, true);
                offView.setBackgroundColor(ColorRGBA.BlackNoAlpha);
                // create offscreen framebuffer
                FrameBuffer offBuffer = new FrameBuffer((int) guiCanvasSize.x, (int) guiCanvasSize.y, 1);
                //setup framebuffer's texture
                guiTexture = new Texture2D((int) guiCanvasSize.x, (int) guiCanvasSize.y, Format.RGBA8);
                guiTexture.setMinFilter(Texture.MinFilter.BilinearNoMipMaps);
                guiTexture.setMagFilter(Texture.MagFilter.Bilinear);
                //setup framebuffer to use texture
                offBuffer.setDepthBuffer(Format.Depth);
                offBuffer.setColorTexture(guiTexture);
                //set viewport to render to offscreen framebuffer
                offView.setOutputFrameBuffer(offBuffer);
                // setup framebuffer's scene
                Iterator<Spatial> spatialIter = environment.getApplication().getGuiViewPort().getScenes().iterator();
                while (spatialIter.hasNext()) {
                    offView.attachScene(spatialIter.next());
                }
                if (useCurvedSurface) {
                    guiQuad = (Geometry) environment.getApplication().getAssetManager().loadModel("Common/Util/gui_mesh.j3o");
                } else {
                    guiQuad = new Geometry("guiQuad", new CenterQuad(1f, 1f));
                }
                Material mat = new Material(environment.getApplication().getAssetManager(), "Common/MatDefs/VR/GuiOverlay.j3md");
                mat.getAdditionalRenderState().setDepthTest(!overdraw);
                mat.getAdditionalRenderState().setBlendMode(BlendMode.Alpha);
                mat.getAdditionalRenderState().setDepthWrite(false);
                mat.setTexture("ColorMap", guiTexture);
                guiQuad.setQueueBucket(Bucket.Translucent);
                guiQuad.setMaterial(mat);
                guiQuadNode = new Node("gui-quad-node");
                guiQuadNode.setQueueBucket(Bucket.Translucent);
                guiQuadNode.attachChild(guiQuad);
            }
            return guiQuadNode;
        } else {
            throw new IllegalStateException("VR GUI manager underlying environment is not attached to any application.");
        }
    } else {
        throw new IllegalStateException("VR GUI manager is not attached to any environment.");
    }
}

Example 62 with Quad

use of com.jme3.scene.shape.Quad in project jmonkeyengine by jMonkeyEngine.

the class OpenVRFilter method configureDistortionMesh.

/*
        function converted from:
        https://github.com/ValveSoftware/openvr/blob/master/samples/hellovr_opengl/hellovr_opengl_main.cpp#L1335
    */
private void configureDistortionMesh() {
    float m_iLensGridSegmentCountH = 43, m_iLensGridSegmentCountV = 43;
    float w = 1f / m_iLensGridSegmentCountH - 1f;
    float h = 1f / m_iLensGridSegmentCountV - 1f;
    float u, v;
    distortionMesh = new Mesh();
    float[] verts = new float[(int) (m_iLensGridSegmentCountV * m_iLensGridSegmentCountH) * 3];
    float[] texcoordR = new float[(int) (m_iLensGridSegmentCountV * m_iLensGridSegmentCountH) * 2];
    float[] texcoordG = new float[(int) (m_iLensGridSegmentCountV * m_iLensGridSegmentCountH) * 2];
    float[] texcoordB = new float[(int) (m_iLensGridSegmentCountV * m_iLensGridSegmentCountH) * 2];
    int vertPos = 0, coordPos = 0;
    //left eye distortion verts
    float Xoffset = -1f;
    for (int y = 0; y < m_iLensGridSegmentCountV; y++) {
        for (int x = 0; x < m_iLensGridSegmentCountH; x++) {
            u = x * w;
            v = 1 - y * h;
            // x
            verts[vertPos] = Xoffset + u;
            // y
            verts[vertPos + 1] = -1 + 2 * y * h;
            // z
            verts[vertPos + 2] = 0f;
            vertPos += 3;
            DistortionCoordinates_t dc0 = new DistortionCoordinates_t();
            ((VR_IVRSystem_FnTable) application.getVRHardware().getVRSystem()).ComputeDistortion.apply(JOpenVRLibrary.EVREye.EVREye_Eye_Left, u, v, dc0);
            texcoordR[coordPos] = dc0.rfRed[0];
            texcoordR[coordPos + 1] = 1 - dc0.rfRed[1];
            texcoordG[coordPos] = dc0.rfGreen[0];
            texcoordG[coordPos + 1] = 1 - dc0.rfGreen[1];
            texcoordB[coordPos] = dc0.rfBlue[0];
            texcoordB[coordPos + 1] = 1 - dc0.rfBlue[1];
            coordPos += 2;
        }
    }
    //right eye distortion verts
    Xoffset = 0;
    for (int y = 0; y < m_iLensGridSegmentCountV; y++) {
        for (int x = 0; x < m_iLensGridSegmentCountH; x++) {
            u = x * w;
            v = 1 - y * h;
            // x
            verts[vertPos] = Xoffset + u;
            // y
            verts[vertPos + 1] = -1 + 2 * y * h;
            // z
            verts[vertPos + 2] = 0f;
            vertPos += 3;
            DistortionCoordinates_t dc0 = new DistortionCoordinates_t();
            ((VR_IVRSystem_FnTable) application.getVRHardware().getVRSystem()).ComputeDistortion.apply(JOpenVRLibrary.EVREye.EVREye_Eye_Right, u, v, dc0);
            texcoordR[coordPos] = dc0.rfRed[0];
            texcoordR[coordPos + 1] = 1 - dc0.rfRed[1];
            texcoordG[coordPos] = dc0.rfGreen[0];
            texcoordG[coordPos + 1] = 1 - dc0.rfGreen[1];
            texcoordB[coordPos] = dc0.rfBlue[0];
            texcoordB[coordPos + 1] = 1 - dc0.rfBlue[1];
            coordPos += 2;
        }
    }
    // have UV coordinates & positions, now to setup indices
    //std::vector<GLushort> vIndices;
    int[] indices = new int[(int) ((m_iLensGridSegmentCountV - 1) * (m_iLensGridSegmentCountH - 1)) * 6];
    int indexPos = 0;
    int a, b, c, d;
    int offset = 0;
    for (int y = 0; y < m_iLensGridSegmentCountV - 1; y++) {
        for (int x = 0; x < m_iLensGridSegmentCountH - 1; x++) {
            a = (int) (m_iLensGridSegmentCountH * y + x + offset);
            b = (int) (m_iLensGridSegmentCountH * y + x + 1 + offset);
            c = (int) ((y + 1) * m_iLensGridSegmentCountH + x + 1 + offset);
            d = (int) ((y + 1) * m_iLensGridSegmentCountH + x + offset);
            indices[indexPos] = a;
            indices[indexPos + 1] = b;
            indices[indexPos + 2] = c;
            indices[indexPos + 3] = a;
            indices[indexPos + 4] = c;
            indices[indexPos + 5] = d;
            indexPos += 6;
        }
    }
    offset = (int) (m_iLensGridSegmentCountH * m_iLensGridSegmentCountV);
    for (int y = 0; y < m_iLensGridSegmentCountV - 1; y++) {
        for (int x = 0; x < m_iLensGridSegmentCountH - 1; x++) {
            a = (int) (m_iLensGridSegmentCountH * y + x + offset);
            b = (int) (m_iLensGridSegmentCountH * y + x + 1 + offset);
            c = (int) ((y + 1) * m_iLensGridSegmentCountH + x + 1 + offset);
            d = (int) ((y + 1) * m_iLensGridSegmentCountH + x + offset);
            indices[indexPos] = a;
            indices[indexPos + 1] = b;
            indices[indexPos + 2] = c;
            indices[indexPos + 3] = a;
            indices[indexPos + 4] = c;
            indices[indexPos + 5] = d;
            indexPos += 6;
        }
    }
    // OK, create the mesh        
    distortionMesh.setBuffer(VertexBuffer.Type.Position, 3, verts);
    distortionMesh.setBuffer(VertexBuffer.Type.Index, 1, indices);
    distortionMesh.setBuffer(VertexBuffer.Type.TexCoord, 2, texcoordR);
    // TODO: are TexCoord2 & TexCoord3 even implemented in jME3?
    distortionMesh.setBuffer(VertexBuffer.Type.TexCoord2, 2, texcoordG);
    distortionMesh.setBuffer(VertexBuffer.Type.TexCoord3, 2, texcoordB);
// TODO: make sure this distortion mesh is used instead of the fullscreen quad
// when filter gets rendered.. might require changes to jME3 core..?
}