data/Packages/com.unity.render-pipelines.universal/Runtime/Overrides/LensDistortion.cs

using System;

namespace UnityEngine.Rendering.Universal
{
    /// <summary>
    /// A volume component that holds settings for the Lens Distortion effect.
    /// </summary>
    [Serializable, VolumeComponentMenu("Post-processing/Lens Distortion")]
    [SupportedOnRenderPipeline(typeof(UniversalRenderPipelineAsset))]
    [URPHelpURL("Post-Processing-Lens-Distortion")]
    public sealed class LensDistortion : VolumeComponent, IPostProcessComponent
    {
        /// <summary>
        /// Total distortion amount.
        /// </summary>
        [Tooltip("Total distortion amount.")]
        public ClampedFloatParameter intensity = new ClampedFloatParameter(0f, -1f, 1f);

        /// <summary>
        /// Intensity multiplier on X axis. Set it to 0 to disable distortion on this axis.
        /// </summary>
        [Tooltip("Intensity multiplier on X axis. Set it to 0 to disable distortion on this axis.")]
        public ClampedFloatParameter xMultiplier = new ClampedFloatParameter(1f, 0f, 1f);

        /// <summary>
        /// Intensity multiplier on Y axis. Set it to 0 to disable distortion on this axis.
        /// </summary>
        [Tooltip("Intensity multiplier on Y axis. Set it to 0 to disable distortion on this axis.")]
        public ClampedFloatParameter yMultiplier = new ClampedFloatParameter(1f, 0f, 1f);

        /// <summary>
        /// Distortion center point. 0.5,0.5 is center of the screen
        /// </summary>
        [Tooltip("Distortion center point. 0.5,0.5 is center of the screen.")]
        public Vector2Parameter center = new Vector2Parameter(new Vector2(0.5f, 0.5f));

        /// <summary>
        /// Controls global screen scaling for the distortion effect. Use this to hide the screen borders when using high \"Intensity.\"
        /// </summary>
        [Tooltip("Controls global screen scaling for the distortion effect. Use this to hide the screen borders when using high \"Intensity.\"")]
        public ClampedFloatParameter scale = new ClampedFloatParameter(1f, 0.01f, 5f);

        /// <inheritdoc/>
        public bool IsActive()
        {
            return Mathf.Abs(intensity.value) > 0
                && (xMultiplier.value > 0f || yMultiplier.value > 0f);
        }

        /// <inheritdoc/>
        [Obsolete("Unused #from(2023.1)", false)]
        public bool IsTileCompatible() => false;
    }
}