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URP Light2D freeform shape editing at runtime.

Discussion in 'Graphics Experimental Previews' started by dlich, Jun 22, 2020.

  1. dlich

    dlich

    Joined:
    Apr 21, 2019
    Posts:
    12
    It would be nice if we could modify the Light2D freeform shape(Light2D.shapePath) at runtime from script. At the moment the property only has a getter and even if you modify the existing points, an OutOfRange exception is being thrown by the LightUtility. Am I missing something or is there really no way to achieve that at the moment?

    Here's the full stack trace:
    ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
    Parameter name: index
    System.ThrowHelper.ThrowArgumentOutOfRangeException (System.ExceptionArgument argument, System.ExceptionResource resource) (at <437ba245d8404784b9fbab9b439ac908>:0)
    System.ThrowHelper.ThrowArgumentOutOfRangeException () (at <437ba245d8404784b9fbab9b439ac908>:0)
    System.Collections.Generic.List`1[T].get_Item (System.Int32 index) (at <437ba245d8404784b9fbab9b439ac908>:0)
    UnityEngine.Experimental.Rendering.Universal.LightUtility.GenerateShapeMesh (UnityEngine.Mesh& mesh, UnityEngine.Vector3[] shapePath, System.Single falloffDistance) (at Library/PackageCache/com.unity.render-pipelines.universal@7.3.1/Runtime/2D/LightUtility.cs:290)
    UnityEngine.Experimental.Rendering.Universal.Light2D.GetMesh (System.Boolean forceUpdate) (at Library/PackageCache/com.unity.render-pipelines.universal@7.3.1/Runtime/2D/Light2D.cs:393)
    UnityEngine.Experimental.Rendering.Universal.Light2D.UpdateMesh () (at Library/PackageCache/com.unity.render-pipelines.universal@7.3.1/Runtime/2D/Light2D.cs:344)
    UnityEngine.Experimental.Rendering.Universal.Light2D.LateUpdate () (at Library/PackageCache/com.unity.render-pipelines.universal@7.3.1/Runtime/2D/Light2D.cs:555)