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path: root/src/main/kotlin/vacation/VacationProgram.kt
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package vacation

import org.openrndr.application
import org.openrndr.color.*
import org.openrndr.draw.*
import org.openrndr.extra.noise.filters.SimplexNoise3D
import org.openrndr.math.Vector3
import phenax.utils.*

fun main() = application {
  recordDuration(5.seconds())

  configure {
    width = 640
    height = 480
    windowResizable = false
  }

  oliveProgram {
    val cs by liveComputeShader("vacation")

    val outputBuffer = colorBuffer(width, height, type = ColorType.UINT8)

    val size = Math.max(width, height) * 2
    val noiseBuffer = colorBuffer(size, size, type = ColorType.UINT8)
    val noiseFilter = SimplexNoise3D()
    noiseFilter.scale = Vector3.ONE * 2.4
    noiseFilter.octaves = 8
    noiseFilter.premultipliedAlpha = true

    extend {
      noiseFilter.seed = Vector3(0.01, 0.01, 0.001)
      noiseFilter.apply(emptyArray(), noiseBuffer)
      cs.image("noise_texture", 1, noiseBuffer.imageBinding(0, ImageAccess.READ))

      cs.uniform("seconds", seconds)
      cs.image("output_image", 0, outputBuffer.imageBinding(0, ImageAccess.WRITE))
      cs.execute(outputBuffer.width, outputBuffer.height, 1)
      drawer.image(outputBuffer)
    }
  }
}