public void setLuminanceLevels(float luminance1, float luminance2, float luminance3, float luminance4, float luminance5) {
        this.luminance1 = luminance1;
        this.luminance2 = luminance2;
        this.luminance3 = luminance3;
        this.luminance4 = luminance4;
        this.luminance5 = luminance5;

        if (material != null) {
            material.setFloat("Luminance1", luminance1);
            material.setFloat("Luminance2", luminance2);
            material.setFloat("Luminance3", luminance3);
            material.setFloat("Luminance4", luminance4);
            material.setFloat("Luminance5", luminance5);
        }
    }
Sets minimum luminance levels for lines drawn
@param luminance1 Top-left to bottom right 1
@param luminance2 Top-right to bottom left 1
@param luminance3 Top-left to bottom right 2
@param luminance4 Top-right to bottom left 2
@param luminance5 Blobs
jme3-effects/src/main/java/com/jme3/post/filters/CrossHatchFilter.java