1 files changed, 51 insertions, 0 deletions
diff --git a/UnityEngine.PostProcessing/DitheringComponent.cs b/UnityEngine.PostProcessing/DitheringComponent.cs
new file mode 100644
index 0000000..a9f0554
--- /dev/null
+++ b/UnityEngine.PostProcessing/DitheringComponent.cs
@@ -0,0 +1,51 @@
+namespace UnityEngine.PostProcessing;
+
+public sealed class DitheringComponent : PostProcessingComponentRenderTexture<DitheringModel>
+{
+	private static class Uniforms
+	{
+		internal static readonly int _DitheringTex = Shader.PropertyToID("_DitheringTex");
+
+		internal static readonly int _DitheringCoords = Shader.PropertyToID("_DitheringCoords");
+	}
+
+	private Texture2D[] noiseTextures;
+
+	private int textureIndex;
+
+	private const int k_TextureCount = 64;
+
+	public override bool active => base.model.enabled && !context.interrupted;
+
+	public override void OnDisable()
+	{
+		noiseTextures = null;
+	}
+
+	private void LoadNoiseTextures()
+	{
+		noiseTextures = new Texture2D[64];
+		for (int i = 0; i < 64; i++)
+		{
+			noiseTextures[i] = Resources.Load<Texture2D>("Bluenoise64/LDR_LLL1_" + i);
+		}
+	}
+
+	public override void Prepare(Material uberMaterial)
+	{
+		if (++textureIndex >= 64)
+		{
+			textureIndex = 0;
+		}
+		float value = Random.value;
+		float value2 = Random.value;
+		if (noiseTextures == null)
+		{
+			LoadNoiseTextures();
+		}
+		Texture2D texture2D = noiseTextures[textureIndex];
+		uberMaterial.EnableKeyword("DITHERING");
+		uberMaterial.SetTexture(Uniforms._DitheringTex, texture2D);
+		uberMaterial.SetVector(Uniforms._DitheringCoords, new Vector4((float)context.width / (float)texture2D.width, (float)context.height / (float)texture2D.height, value, value2));
+	}
+}