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

The following examples show how to use com.jme3.renderer.Camera#getProjectionMatrix() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ParticleEmitter.java    From jmonkeyengine with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
/**
 * Callback from Control.render(), do not use.
 *
 * @param rm
 * @param vp
 */
private void renderFromControl(RenderManager rm, ViewPort vp) {
    Camera cam = vp.getCamera();

    if (meshType == ParticleMesh.Type.Point) {
        float C = cam.getProjectionMatrix().m00;
        C *= cam.getWidth() * 0.5f;

        // send attenuation params
        this.getMaterial().setFloat("Quadratic", C);
    }

    Matrix3f inverseRotation = Matrix3f.IDENTITY;
    TempVars vars = null;
    if (!worldSpace) {
        vars = TempVars.get();

        inverseRotation = this.getWorldRotation().toRotationMatrix(vars.tempMat3).invertLocal();
    }
    particleMesh.updateParticleData(particles, cam, inverseRotation);
    if (!worldSpace) {
        vars.release();
    }
}
Example 2
Source File: MyParticleEmitter.java    From OpenRTS with MIT License 6 votes vote down vote up 
/**
 * Callback from Control.render(), do not use.
 * 
 * @param rm
 * @param vp 
 */
private void renderFromControl(RenderManager rm, ViewPort vp) {
    Camera cam = vp.getCamera();

    if (meshType == ParticleMesh.Type.Point) {
        float C = cam.getProjectionMatrix().m00;
        C *= cam.getWidth() * 0.5f;

        // send attenuation params
        this.getMaterial().setFloat("Quadratic", C);
    }

    Matrix3f inverseRotation = Matrix3f.IDENTITY;
    TempVars vars = null;
    if (!worldSpace) {
        vars = TempVars.get();

        inverseRotation = this.getWorldRotation().toRotationMatrix(vars.tempMat3).invertLocal();
    }
    particleMesh.updateParticleData(particles, cam, inverseRotation);
    if (!worldSpace) {
        vars.release();
    }
}
Example 3
Source File: ParticleEmitter.java    From MikuMikuStudio with BSD 2-Clause "Simplified" License 6 votes vote down vote up 
/**
 * Callback from Control.render(), do not use.
 * 
 * @param rm
 * @param vp 
 */
private void renderFromControl(RenderManager rm, ViewPort vp) {
    Camera cam = vp.getCamera();

    if (meshType == ParticleMesh.Type.Point) {
        float C = cam.getProjectionMatrix().m00;
        C *= cam.getWidth() * 0.5f;

        // send attenuation params
        this.getMaterial().setFloat("Quadratic", C);
    }

    Matrix3f inverseRotation = Matrix3f.IDENTITY;
    TempVars vars = null;
    if (!worldSpace) {
        vars = TempVars.get();

        inverseRotation = this.getWorldRotation().toRotationMatrix(vars.tempMat3).invertLocal();
    }
    particleMesh.updateParticleData(particles, cam, inverseRotation);
    if (!worldSpace) {
        vars.release();
    }
}
Example 4
Source File: OpenVR.java    From jmonkeyengine with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
@Override
public Matrix4f getHMDMatrixProjectionLeftEye(Camera cam){
    if( hmdProjectionLeftEye != null ) {
        return hmdProjectionLeftEye;
    } else if(vrsystemFunctions == null){
        return cam.getProjectionMatrix();
    } else {
        HmdMatrix44_t mat = vrsystemFunctions.GetProjectionMatrix.apply(JOpenVRLibrary.EVREye.EVREye_Eye_Left, cam.getFrustumNear(), cam.getFrustumFar());
        hmdProjectionLeftEye = new Matrix4f();
        convertSteamVRMatrix4ToMatrix4f(mat, hmdProjectionLeftEye);
        return hmdProjectionLeftEye;
    }
}
Example 5
Source File: OpenVR.java    From jmonkeyengine with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
@Override
public Matrix4f getHMDMatrixProjectionRightEye(Camera cam){
    if( hmdProjectionRightEye != null ) {
        return hmdProjectionRightEye;
    } else if(vrsystemFunctions == null){
        return cam.getProjectionMatrix();
    } else {
        HmdMatrix44_t mat = vrsystemFunctions.GetProjectionMatrix.apply(JOpenVRLibrary.EVREye.EVREye_Eye_Right, cam.getFrustumNear(), cam.getFrustumFar());
        hmdProjectionRightEye = new Matrix4f();
        convertSteamVRMatrix4ToMatrix4f(mat, hmdProjectionRightEye);
        return hmdProjectionRightEye;
    }
}
Example 6
Source File: OSVR.java    From jmonkeyengine with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
@Override
public Matrix4f getHMDMatrixProjectionLeftEye(Camera cam) {
    if( eyeLeftInfo == null ) return cam.getProjectionMatrix();
    if( eyeMatrix[EYE_LEFT] == null ) {
        FloatBuffer tfb = FloatBuffer.allocate(16);
        com.jme3.system.osvr.osvrdisplay.OsvrDisplayLibrary.osvrClientGetViewerEyeSurfaceProjectionMatrixf(displayConfig, 0, (byte)EYE_LEFT, 0, cam.getFrustumNear(), cam.getFrustumFar(), (short)0, tfb);
        eyeMatrix[EYE_LEFT] = new Matrix4f();
        eyeMatrix[EYE_LEFT].set(tfb.get(0), tfb.get(4), tfb.get(8), tfb.get(12),
                                tfb.get(1), tfb.get(5), tfb.get(9), tfb.get(13),
                                tfb.get(2), tfb.get(6), tfb.get(10), tfb.get(14),
                                tfb.get(3), tfb.get(7), tfb.get(11), tfb.get(15));
    }
    return eyeMatrix[EYE_LEFT];
}
Example 7
Source File: OSVR.java    From jmonkeyengine with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
@Override
public Matrix4f getHMDMatrixProjectionRightEye(Camera cam) {
    if( eyeRightInfo == null ) return cam.getProjectionMatrix();
    if( eyeMatrix[EYE_RIGHT] == null ) {
        FloatBuffer tfb = FloatBuffer.allocate(16);
        com.jme3.system.osvr.osvrdisplay.OsvrDisplayLibrary.osvrClientGetViewerEyeSurfaceProjectionMatrixf(displayConfig, 0, (byte)EYE_RIGHT, 0, cam.getFrustumNear(), cam.getFrustumFar(), (short)0, tfb);
        eyeMatrix[EYE_RIGHT] = new Matrix4f();
        eyeMatrix[EYE_RIGHT].set(tfb.get(0), tfb.get(4), tfb.get(8), tfb.get(12),
                                tfb.get(1), tfb.get(5), tfb.get(9), tfb.get(13),
                                tfb.get(2), tfb.get(6), tfb.get(10), tfb.get(14),
                                tfb.get(3), tfb.get(7), tfb.get(11), tfb.get(15));
    }
    return eyeMatrix[EYE_RIGHT];
}
Example 8
Source File: ShadowUtil.java    From jmonkeyengine with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
/**
     * 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);
    }
Example 9
Source File: ShadowUtil.java    From MikuMikuStudio with BSD 2-Clause "Simplified" License 4 votes vote down vote up 
/**
     * 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);
    }