Examples of com.jme.math.Quaternion.mult()

com.jme.math.Quaternion.mult()

            // to the Cell. This will make sure that the direction of rotation
            // comes out properly.
            Quaternion rotation = rootNode.getLocalRotation();
            float angles[] = new float[3];
            rotation.toAngles(angles);
            normal = rotation.mult(normal);
            
            // Compute the signed angle between v1 and v2. We do this with the
            // following formula: angle = atan2(normal dot (v1 cross v2), v1 dot v2)
            float dotProduct = v1.dot(v2);
            Vector3f crossProduct = v1.cross(v2);

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        // any look in the y-axis.
        Quaternion viewRotation = viewTransform.getRotation(null);


        Vector3f v1 = new Vector3f(0, 0, 1);
        Vector3f normal = new Vector3f(0, 1, 0);
        Vector3f v2 = viewRotation.mult(v1);
        v2.normalizeLocal();


        // Compute the signed angle between v1 and v2. We do this with the
        // following formula: angle = atan2(normal dot (v1 cross v2), v1 dot v2)
        float dotProduct = v1.dot(v2);

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