从Unity迁移到UNIGINE：内容创建

The same way the Mesh Skinned object supports morphing. If a mesh has blend shapes (sometimes referred to as morph targets for some 3D editors) assigned in a third-party 3D modelling software, they will be available internally as surface morph targets (provided the Import Morph Targets was enabled for the imported asset).Mesh Skinned对象支持变形的方式相同。如果网格在第三方3D建模软件中分配了blend shapes（对于某些3D编辑器有时称为morph targets），则它们将在内部以表面变形目标（前提是已为导入的资源启用了Import Morph Targets）。

Unity Skinned Mesh Renderer component lists the imported Blendshapes in the parameters:Unity Skinned Mesh Renderer组件在参数中列出了导入的Blendshapes：

In UNIGINE, multiple animation morph targets (i.e. morph layers) are created based on the available surface targets and blended manually using weights via API methods.在UNIGINE中，根据可用的表面目标创建多个动画morph targets（即变形层），并使用权重通过API方法。

Follow the related tutorial for more details:请遵循相关教程以获取更多详细信息：

• Adding Morph Targets

In Unity software, light sources can be in Realtime, Mixed, and Baked modes and cast realtime shadows by default. When it comes to light baking (including shadows), Unity workflow implies using Lightmaps. The way of considering GameObject contribution to light baking is defined by its Static flag and a bunch of other parameters.在Unity软件中，光源可以处于Realtime, Mixed和Baked模式，并且默认情况下会投射实时阴影。对于轻度烘焙（包括阴影），Unity工作流程意味着使用光照贴图。考虑GameObject对光烘烤的贡献的方式由其Static标志和其他一些参数定义。

Considering the concept of realtime and precomputed shadows, UNIGINE provides both types of shadows from light sources.考虑到实时阴影和预先计算的阴影的概念，UNIGINE提供了两种类型的光源阴影。

Shadows are cast using a commonly used technique called Shadow Mapping. All light sources can be either in Dynamic or Static mode according to which it is decided if shadow maps are computed in real time or saved in an asset, thus significantly reducing the number of polygons rendered each frame. Apparently, moving lights should be Dynamic, we can't precompute shadows cast from a moving light source.使用称为Shadow Mapping的常用技术投射阴影。所有光源都可以位于动态或静态确定阴影图是实时计算还是保存在资源中的模式，从而显着减少了每帧渲染的多边形数量。显然，移动光源应该是Dynamic ，我们无法预先计算从移动光源投射的阴影。

The Mixed or Static Shadow Casting Mode of a light source filters the surfaces that cast shadows from it. By using the Mixed mode you can combine baked shadows from static geometry and realtime shadows cast by certain dynamic meshes. Use the Shadow Mode to decide whether the surface is static or dynamic.混合或静态阴影投射模式光源过滤器过滤从其投射阴影的表面。通过使用“混合”模式，您可以将静态几何图形中的烘焙阴影与某些动态网格物体所投射的实时阴影进行组合。使用Shadow Mode来确定曲面是静态的还是动态的。

To learn more about configuring different types of shadows, watch the dedicated video tutorial:要了解有关配置不同类型阴影的更多信息，请观看专用视频教程：

• Cached Shadows缓存的阴影

World light source, as well as Unity Directional light source, uses an advanced shadow mapping technique called Parallel-Split Shadow Mapping to handle shadows at large distances. The shadow settings are available per each light source.世界光源以及Unity定向光源都使用一种称为Parallel-Split Shadow Mapping的高级阴影映射技术来处理远距离的阴影。这阴影设置每个光源可用。

For texture modulated lights, Unity software has a special type of textures: Cookie. High Definition RP also provides support for IES Light Profiles for more realistic light sources.对于纹理调制的灯光，Unity软件具有特殊的纹理类型：Cookie。

In UNIGINE, you can use an arbitrary flat diffuse or albedo texture, as well as an IES-profile, in the Texture parameter of Light Projected. The same way you can apply texture modulation to Light Omni by using a cubemap texture.在UNIGINE中，可以在Light Projected的Texture参数中使用任意的平面漫反射或反照率纹理。通过使用立方体贴图纹理，可以将纹理调制应用于Light Omni的方法相同。

Modulation by texture通过纹理调制

Modulation by cubemapIES Profile通过立方体贴图进行调制

To simulate fog in Unity software, you are accustomed to use the Other Settings section of the Lighting window when using Forward Rendering Path, and the Deferred Fog feature from the Post Processing package when using Deferred Rendering.要在Unity软件中模拟雾，习惯于使用“正向渲染路径”时使用“照明”窗口的Other Settings部分，以及使用“延迟渲染”时使用Post Processing包中的Deferred Fog功能。

For the same purpose in UNIGINE you can use Environment Haze in the Solid mode or, if the difference between haze and fog is crucial for your project, use Volumetric Objects — they are great for simulating light beams and shafts, fog and shaped clouds.为了在UNIGINE中实现相同的目的，可以在Solid模式下使用Environment Haze，或者如果雾度和雾度之间的差异对于您的项目至关重要，则可以使用体积物体-它们非常适合模拟光束和轴，雾和异形云。

Unity software provides path-tracing-based lightmappers enabling to pre-calculate (bake) the brightness of surfaces in a scene and store the result in a light map for later use at run time. It requires non-overlapping UVs with small area and angle errors, and sufficient padding between the charts.Unity软件提供了基于路径跟踪的光照贴图程序，可以预先计算（烘焙）场景中表面的亮度并将结果存储在光照图中，以供以后在运行时使用。它要求非重叠的UV具有较小的面积和角度误差，并且图表之间必须有足够的填充。

In UNIGINE, lightmaps are also supported and baked using the integrated GPU Lightmapper tool. When importing an FBX-model, you'll be offered to automatically unwrap either of two UV-channels, one of which will be used for lightmaps.在UNIGINE中，还使用集成的GPU Lightmapper工具支持并烘焙光照贴图。

UNIGINE provides another advanced solution for static GI — Voxel-Based Global Illumination provided by Voxel Probes.UNIGINE为静态GI提供了另一种高级解决方案-由Voxel Probe提供的Voxel全局照明。

Voxel Probe is a box-shaped volume composed of voxels of fixed size, providing both pre-calculated indirect lighting and diffuse (blurred) reflections. One of advantages of this approach — there is no need in UV coordinates, any geometry will contribute to GI with no issues. Also, this technique illuminates dynamic objects as well and greatly fits with static lightmaps.Voxel Probe是由固定大小的体素组成的盒形体积，既提供了预先计算的间接照明，又提供了漫反射（模糊） 。这种方法的优点之一-不需要UV坐标，任何几何形状都不会对GI产生影响。

Light baking is performed using Bake Lighting tool.使用Bake Lighting工具执行轻度烘烤。

As concerns realtime, Unity real-time lightmaps are mainly useful for lights that are animated at run time. For such cases UNIGINE features the SSRTGI (Screen-Space Ray-Traced Global Illumination) technology enhancing overall connectedness of the scene a lot.关于实时，Unity实时光照贴图主要用于在运行时设置动画的光照。在这种情况下，UNIGINE具有SSRTGI （屏幕空间光线跟踪的全局照明）技术，可以大大增强场景的整体连接性。