DemoDitherLumaHalftone01.kt

import org.openrndr.application
import org.openrndr.draw.createEquivalent
import org.openrndr.draw.loadImage
import org.openrndr.extra.fx.dither.LumaHalftone

fun main() = application {
    program {
        val image = loadImage("demo-data/images/image-001.png")
        val filteredImage = image.createEquivalent()
        val lumaHalftone = LumaHalftone()
        extend {
            lumaHalftone.rotation = -15.0
            lumaHalftone.freq0 = 100.0
            lumaHalftone.gain1 = 1.0
            lumaHalftone.threshold = 0.5
            lumaHalftone.phase0 = seconds * 0.1
            lumaHalftone.phase1 = -seconds * 0.1
            lumaHalftone.apply(image, filteredImage)
            lumaHalftone.invert = seconds.mod(2.0) < 1.0
            drawer.image(filteredImage)
        }
    }
}