public Vector4f mult(float x, float y, float z, float w) {
        return new Vector4f(this.x * x, this.y * y, this.z * z, this.w * w);
    }
Multiplies component-wise by the specified components and returns the
product as a new instance. The current instance is unaffected.

@param x the scale factor for the X component
@param y the scale factor for the Y component
@param z the scale factor for the Z component
@param w the scale factor for the W component
@return a new Vector4f
jme3-core/src/main/java/com/jme3/math/Vector4f.java