AssetPostprocessor.OnPreprocessLightDescription(LightDescription,Light, AnimationClip[])

参数

描述

将此函数添加到子类中，以在从模型导入器导入灯光时接收通知。

仅当 ModelImporter.ImportLights 为 true 时，Unity 才会调用此函数。此函数使您可以在模型导入过程中控制灯光属性和动画。LightDescription 结构包含导入文件中的所有灯光数据。您可以使用它来填充灯光、其 GameObject 和动画片段。

using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
using UnityEditor.AssetImporters;

public class SetupLightFromCameraDescription : AssetPostprocessor
{
    void OnPreprocessLightDescription(LightDescription description, Light light, AnimationClip[] clips)
    {
        var modelImporter = assetImporter as ModelImporter;
        var globalScale = modelImporter.globalScale;

        description.TryGetProperty("LightType", out int lightType);

        switch (lightType)
        {
            case 0: light.type = LightType.Point; break;
            case 1: light.type = LightType.Directional; break;
            case 2: light.type = LightType.Spot; break;
            case 3: light.type = LightType.Rectangle; break;
        }

        description.TryGetProperty("Intensity", out float intensity);
        description.TryGetProperty("Color", out Vector4 color);
        description.TryGetProperty("CastShadows", out int castShadows);
        description.TryGetProperty("FarAttenuationEnd", out float farAttenuationEnd);
        description.TryGetProperty("OuterAngle", out float outerAngle);

        light.intensity = intensity * 0.01f;
        light.color = color;
        light.shadows = castShadows == 1 ? LightShadows.Hard : LightShadows.None;

        if (farAttenuationEnd > 0)
            light.range = farAttenuationEnd * globalScale;

        if (outerAngle > 0)
            light.spotAngle = outerAngle;
    }
}