package faces

import org.openrndr.application
import org.openrndr.color.*
import org.openrndr.draw.*
import org.openrndr.extra.noise.filters.SimplexNoise3D
import org.openrndr.math.IntVector2
import org.openrndr.math.Vector3
import phenax.extensions.CameraManager
import phenax.utils.*

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

  configure {
    width = 640
    height = 480
    windowResizable = false
    position = IntVector2(0, 0)
  }

  oliveProgram {
    val cs by liveComputeShader("faces")

    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

    val cameraManager = CameraManager(Vector3(1.0, 1.0, -1.0), Vector3(30.0, 0.0, 0.0))
    cameraManager.lightPosition = Vector3(6.0, 8.0, -8.0)
    extend(cameraManager)

    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))
      cameraManager.setUniforms(cs)
      cs.execute(outputBuffer.width, outputBuffer.height, 1)
      drawer.image(outputBuffer)
    }
  }
}