1 Star 7 Fork 4

理太白 / DynamicLightMap

加入 Gitee
与超过 1200万 开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)
免费加入
克隆/下载
贡献代码
同步代码
取消
提示: 由于 Git 不支持空文件夾,创建文件夹后会生成空的 .keep 文件
Loading...
README
Apache-2.0

DynamicLightMap

介绍

  • 动态加载烘焙的光照贴图
  • 本例中只有烘焙贴图,没有实时光照贴图
  • 加载实时光照贴图没有找到任何资料、方法、API(目前认定不行)

步骤

  1. 创建原始场景,放置对象(最后变成Prefab),设置烘焙信息
  2. 烘焙场景,产生光照贴图
  3. 编写保存光照贴图的代码
  4. 保存光照贴图
  5. 新建动态加载的场景
  6. 编写加载光照贴图的代码
  7. 运行观察效果

步骤1

  • 创建原始场景,放置对象(最后变成Prefab),设置烘焙信息
  • 没有放置方向光
  • 没有任何实时光源
  1. 布置场景,放置对象
  • 整体布局

  • 对象的Static属性

所有对象都设置了Lightmap Static

  • 对象的Renderer属性

  • 只有三个Sphere勾选了Stitch Seams
  • 放置面与面的过渡过于明显
  • 灯光(实际是自发光材质)属性

Emission.Color.HDR.intensity = 2

  1. Scene的Lighting Setting

  • 环境光为颜色,且纯黑;表示不参与运算
  • 没有勾选实时光照

步骤二

烘焙场景,产生光照贴图

  1. 烘焙
  • 点击Lighting中的Generate Lighting按钮,开始烘焙
  1. 查看烘焙文件
  • 烘焙结束后,会在场景文件对于的目录下,创建一个文件夹,名称与场景名称相同
  • 在该文件夹下,存储了烘焙的光照贴图文件

  1. 查看效果
  • 烘焙前

  • 烘焙后

  1. 将烘焙的光照贴图修改属性
  • 全选所有光照忒图
  • 修改Inspector面板中的Advaned.Read/Write Enabled属性
  • 勾选该属性
  • 点击Apply按钮

该步骤的目的是为了后面的代码能够访问这些贴图

步骤3

编写保存光照贴图的代码

  1. 存储Renderer光照信息用的类
[Serializable]
public class LightmapInfo
{
    public string gameObjectPath;
    public int lightmapIndex;
    public Vector4 lightmapScaleOffset;
}
  1. 存储整个场景光照信息的类
public class SceneLightmapInfo : ScriptableObject
{
    //Lightmap Color and Dir Texture
    public Texture2D[] lightmapColorTextures;
    public Texture2D[] lightmapDirTextures;

    //Renderer LightmapInfo
    public LightmapInfo[] lightmapInfos;
}
  1. Editor.Menu
public class SaveSceneLightmap
{
    [MenuItem("iSane/Utils/Save Scene Lightmap")]
    public static void SaveLightmapOverride()
    {
        string sceneName = EditorSceneManager.GetActiveScene().name;
        string rootPath = "Assets/SceneLightmap";
        string fullPath = rootPath + "/" + sceneName;

        CreateAssetPath(rootPath, fullPath, sceneName);

        CreateAsset(fullPath, sceneName);
    }

    ...
}

步骤4

保存光照贴图

  1. 点击菜单iSane/Utils/Save Scene Lightmap
  2. 系统会自动创建相关目录
  • Assets/SceneLightmap/场景名称
  1. 系统会自动复制场景的光照贴图到上面的目录中
  2. 系统会创建SceneLightmapInfo对于的Asset,并自动赋值
  3. 查看目录

  1. 查看Asset属性

  1. 修改复制的光照贴图的属性
  • 将所有复制的光照贴图的压缩属性设置为None,点击Apply按钮

  • 将_light结尾的光照贴图的类型改为Lightmap

步骤5

新建动态加载的场景

  1. 新建场景
  2. 去掉方向光
  3. 添加步骤1建立的Prefab
  • 步骤后的层次结构

步骤6

编写加载光照贴图的代码

  1. 添加存储场景光照贴图信息的资源
public SceneLightmapInfo SceneLightmapInfo;
  1. 在启动时设置场景的光照贴图和各个Renderer的光照贴图信息
    private void Awake()
    {
        LoadLightmapDatas();
        LoadRendererInfos();
    }
  1. 设置场景的光照贴图
    private void LoadLightmapDatas()
    {
        int length = SceneLightmapInfo.lightmapColorTextures.Length;

        LightmapData[] datas = new LightmapData[length];
        for (int i = 0; i < length; i++)
        {
            datas[i] = new LightmapData();
            datas[i].lightmapColor = SceneLightmapInfo.lightmapColorTextures[i];
            datas[i].lightmapDir = SceneLightmapInfo.lightmapDirTextures[i];
        }
        LightmapSettings.lightmaps = datas;
    }
  1. 各个Renderer的光照贴图信息
    foreach (LightmapInfo info in SceneLightmapInfo.lightmapInfos)
    {
        target = GameObject.Find(info.gameObjectPath);
        if (null == target)
        {
            continue;
        }

        r = target.GetComponent<Renderer>();
        if (null == r)
        {
            continue;
        }

        r.lightmapIndex = info.lightmapIndex;
        r.lightmapScaleOffset = info.lightmapScaleOffset;
    }

步骤7

运行观察效果

  • 运行前

  • 运行后

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). "Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution." "Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and (b) You must cause any modified files to carry prominent notices stating that You changed the files; and (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS APPENDIX: How to apply the Apache License to your work. To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!) The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

简介

动态加载烘焙的光照贴图 展开 收起
C#
Apache-2.0
取消

发行版

暂无发行版

贡献者

全部

近期动态

加载更多
不能加载更多了
C#
1
https://gitee.com/andersonunity/DynamicLightMap.git
git@gitee.com:andersonunity/DynamicLightMap.git
andersonunity
DynamicLightMap
DynamicLightMap
master

搜索帮助