+init

1 files changed, 53 insertions, 0 deletions

diff --git a/UnityEngine.PostProcessing/ChromaticAberrationComponent.cs b/UnityEngine.PostProcessing/ChromaticAberrationComponent.cs
new file mode 100644
index 0000000..1e5b82a
--- /dev/null
+++ b/UnityEngine.PostProcessing/ChromaticAberrationComponent.cs
@@ -0,0 +1,53 @@
+namespace UnityEngine.PostProcessing;
+
+public sealed class ChromaticAberrationComponent : PostProcessingComponentRenderTexture<ChromaticAberrationModel>
+{
+	private static class Uniforms
+	{
+		internal static readonly int _ChromaticAberration_Amount = Shader.PropertyToID("_ChromaticAberration_Amount");
+
+		internal static readonly int _ChromaticAberration_Spectrum = Shader.PropertyToID("_ChromaticAberration_Spectrum");
+	}
+
+	private Texture2D m_SpectrumLut;
+
+	public override bool active => base.model.enabled && base.model.settings.intensity > 0f && !context.interrupted;
+
+	public override void OnDisable()
+	{
+		GraphicsUtils.Destroy(m_SpectrumLut);
+		m_SpectrumLut = null;
+	}
+
+	public override void Prepare(Material uberMaterial)
+	{
+		ChromaticAberrationModel.Settings settings = base.model.settings;
+		Texture2D texture2D = settings.spectralTexture;
+		if (texture2D == null)
+		{
+			if (m_SpectrumLut == null)
+			{
+				m_SpectrumLut = new Texture2D(3, 1, TextureFormat.RGB24, mipmap: false)
+				{
+					name = "Chromatic Aberration Spectrum Lookup",
+					filterMode = FilterMode.Bilinear,
+					wrapMode = TextureWrapMode.Clamp,
+					anisoLevel = 0,
+					hideFlags = HideFlags.DontSave
+				};
+				Color[] pixels = new Color[3]
+				{
+					new Color(1f, 0f, 0f),
+					new Color(0f, 1f, 0f),
+					new Color(0f, 0f, 1f)
+				};
+				m_SpectrumLut.SetPixels(pixels);
+				m_SpectrumLut.Apply();
+			}
+			texture2D = m_SpectrumLut;
+		}
+		uberMaterial.EnableKeyword("CHROMATIC_ABERRATION");
+		uberMaterial.SetFloat(Uniforms._ChromaticAberration_Amount, settings.intensity * 0.03f);
+		uberMaterial.SetTexture(Uniforms._ChromaticAberration_Spectrum, texture2D);
+	}
+}