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- using UnityEngine;
- using System.Collections;
- using System.Collections.Generic;
- public class PrefabLightmapData : MonoBehaviour
- {
- [System.Serializable]
- struct RendererInfo
- {
- public Renderer renderer;
- public int lightmapIndex;
- public Vector4 lightmapOffsetScale;
- }
- [SerializeField]
- RendererInfo[] m_RendererInfo;
- [SerializeField]
- Texture2D[] m_Lightmaps;
- void Awake()
- {
-
- }
- void init()
- {
- if (m_RendererInfo == null || m_RendererInfo.Length == 0)
- return;
- var lightmaps = LightmapSettings.lightmaps;
- var combinedLightmaps = new LightmapData[lightmaps.Length + m_Lightmaps.Length];
- lightmaps.CopyTo(combinedLightmaps, 0);
- for (int i = 0; i < m_Lightmaps.Length; i++)
- {
- combinedLightmaps[i + lightmaps.Length] = new LightmapData();
- combinedLightmaps[i + lightmaps.Length].lightmapColor = m_Lightmaps[i];
- }
- ApplyRendererInfo(m_RendererInfo, lightmaps.Length);
- LightmapSettings.lightmaps = combinedLightmaps;
- }
- private void OnEnable()
- {
- init();
- Debug.Log("11");
- }
- static void ApplyRendererInfo(RendererInfo[] infos, int lightmapOffsetIndex)
- {
- for (int i = 0; i < infos.Length; i++)
- {
- var info = infos[i];
- info.renderer.lightmapIndex = info.lightmapIndex + lightmapOffsetIndex;
- info.renderer.lightmapScaleOffset = info.lightmapOffsetScale;
- }
- }
- #if UNITY_EDITOR
- [UnityEditor.MenuItem("Assets/Bake Prefab Lightmaps")]
- static void GenerateLightmapInfo()
- {
- if (UnityEditor.Lightmapping.giWorkflowMode != UnityEditor.Lightmapping.GIWorkflowMode.OnDemand)
- {
- Debug.LogError("ExtractLightmapData requires that you have baked you lightmaps and Auto mode is disabled.");
- return;
- }
- UnityEditor.Lightmapping.Bake();
- PrefabLightmapData[] prefabs = FindObjectsOfType<PrefabLightmapData>();
- foreach (var instance in prefabs)
- {
- var gameObject = instance.gameObject;
- var rendererInfos = new List<RendererInfo>();
- var lightmaps = new List<Texture2D>();
- GenerateLightmapInfo(gameObject, rendererInfos, lightmaps);
- instance.m_RendererInfo = rendererInfos.ToArray();
- instance.m_Lightmaps = lightmaps.ToArray();
- var targetPrefab = UnityEditor.PrefabUtility.GetPrefabParent(gameObject) as GameObject;
- if (targetPrefab != null)
- {
- //UnityEditor.Prefab
- UnityEditor.PrefabUtility.ReplacePrefab(gameObject, targetPrefab);
- }
- }
- }
- static void GenerateLightmapInfo(GameObject root, List<RendererInfo> rendererInfos, List<Texture2D> lightmaps)
- {
- var renderers = root.GetComponentsInChildren<MeshRenderer>();
- foreach (MeshRenderer renderer in renderers)
- {
- if (renderer.lightmapIndex != -1)
- {
- RendererInfo info = new RendererInfo();
- info.renderer = renderer;
- info.lightmapOffsetScale = renderer.lightmapScaleOffset;
- Texture2D lightmap = LightmapSettings.lightmaps[renderer.lightmapIndex].lightmapColor;
- info.lightmapIndex = lightmaps.IndexOf(lightmap);
- if (info.lightmapIndex == -1)
- {
- info.lightmapIndex = lightmaps.Count;
- lightmaps.Add(lightmap);
- }
- rendererInfos.Add(info);
- }
- }
- }
- #endif
- }
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