CAD导入指南

Enables splitting of imported meshes. Too large models having sizes, that exceed 10000 units may have various artefacts (jitter, etc.) associated with positioning errors. You can eliminate such artefacts by splitting your mesh into multiple separate meshes. To do so, just enable this option and set the size of the grid cell (see the Grid Size parameter below) to be used for mesh splitting.启用导入网格的拆分。尺寸超过10000个单位的太大模型可能会出现与定位错误相关的各种伪像（抖动等）。您可以通过将网格划分为多个单独的网格来消除此类伪影。为此，只需启用此选项并设置用于网格划分的网格单元的大小（请参见下面的Grid Size参数）。

注意

This option does not split surfaces.此选项不会拆分曲面。

Desired degree of geometry simplification for each LOD (target geometry complexity percentage from the initial number of polygons).每个LOD所需的几何简化程度(目标几何复杂度与初始多边形数量的百分比)。

注意

Please keep in mind that this is only a target value, that in some cases may be unreachable for the mesh simplifier. In case any artefacts with the topology of the simplified meshes occur, try increasing this value.请记住，这只是一个目标值，在某些情况下，网格简化器可能无法达到。如果出现任何具有简化网格拓扑的伪影，请尝试增加此值。

The minimum distance on which this LOD is visible in camera local axes.在摄像机局部轴上可见此LOD的最小距离。

-inf — the LOD is visible by default.-inf：默认情况下，LOD可见。

The maximum distance on which this LOD is visible in camera local axes.此LOD在相机局部轴中可见的最大距离。

inf — the LOD is visible by default.inf：默认情况下，LOD可见。

Over this distance, the surface fades in until it is completely visible. Along this distance the engine automatically interpolates the level of detail from completely invisible to completely opaque. Fading-in starts when the camera has reached the minimum distance of surface visibility and is in the full visibility range.在这个距离上，表面逐渐消失，直到完全可见。沿着这个距离，引擎会自动将细节级别从完全不可见插入到完全不透明。当相机达到表面能见度的最小距离并且处于完整的能见度范围内时，淡入开始。

Over this distance, the surface fades out until it is completely invisible. Fading out starts when the camera has reached the maximum distance of surface visibility and is out of the full visibility range.在这个距离上，表面逐渐消失，直到完全不可见。当相机达到表面能见度的最大距离并且超出整个能见度范围时，就会开始淡出。

Enables to choose whether to use existing materials or to overwrite them with the ones imported. Available options:允许选择是使用现有材质还是用导入的材质覆盖它们。可用选项：

• Take From Assets — use existing materials (if any).Take From Assets-使用现有材质（如果有）。
• Overwrite Assets — overwrite existing materials (if any).Overwrite Assets —覆盖现有材质（如果有）。

Enables to choose the base material for the imported materials. Available options:可以为导入的材质选择基材。可用选项：

• Inherited Material Graphs - an autoselected graph-based material is used as the base material. This mode finds the most suitable autogenerated graph-based material with the appropriate functionality and inherits the imported materials from it. If such graph-based material isn't found in the project, it will be autogenerated and used as the base one.
  注意

  This mode allows reusing the existing graph-based base materials and avoiding creation of multiple unique base materials when importing CAD files.This mode allows reusing the existing graph-based base materials and avoiding creation of multiple unique base materials when importing CAD files.
  This mode allows reusing the existing graph-based base materials and avoiding creation of multiple unique base materials when importing CAD files.Inherited Material Graphs - 使用自动选择的基于图形的材质作为基础材质。此模式查找具有适当功能的最合适的基于图形的自动生成材质，并从中继承导入的材质。如果在项目中没有找到这种基于图形的材质，它将自动生成并用作基础材质。
  注意

  This mode allows reusing the existing graph-based base materials and avoiding creation of multiple unique base materials when importing CAD files.此模式允许在导入 FBX 文件时重复使用现有的基于图形的基础材质并避免创建多个唯一的基础材质。
• Unique Material Graphs - an autogenerated graph-based material is used as the base material. In this mode all the imported materials will be inherited from the unique autogenerated graph-based materials.Unique Material Graphs - 使用自动生成的基于图形的材质作为基础材质。在这种模式下，所有导入的材质都将继承自独特的自动生成的基于图形的材质。
• Inherited Mesh Base - the built-in mesh_base material is used as the base material for the imported materials.Inherited Mesh Base - 内置mesh_base材质作为进口材质的基础材质。

Provides an interface to choose a workflow for the imported physically-based materials (if any). Available options:提供一个界面来选择工作流程进口的基于物理的材质（如果有）。可用选项：

• Specular workflow — use the old standard of textures that was used in the mesh_base material (diffuse, specular, gloss).Specular workflow-使用在mesh_base材质（diffuse, specular, gloss）中使用的旧纹理标准。
• Metalness workflow — use the new standard of textures (albedo, metalness, roughness).Metalness workflow-使用新的纹理标准（albedo, metalness, roughness）。

Appends the specified prefix for the imported materials names to avoid name collisions.允许为导入的材质添加前缀，以避免名称冲突。

注意

If multiple CAD models are imported together this feature does not guarantee that all materials with the same names will be preserved, as only one prefix is used for all of them (if two models have different materials named black, only one of them shall remain with the specified prefix). To avoid such cases, models should be imported sequentially with different prefixes.如果将多个CAD模型一起导入，则此功能不能保证将保留所有具有相同名称的材质，因为所有材质都只使用一个前缀（如果两个模型的材质名为black，则其中只有一个保留）。指定的前缀）。为避免这种情况，应使用不同的前缀顺序导入模型。

Geometry scale multiplier.几何比例乘数。

注意

The default unit of length for CAD models can be millimeter, inch, etc. On model importing, it is transferred to meter used in UNIGINE. So, you may need to scale the model on importing to get the appropriate size. The specified value doesn't affect scale of the model added to the world.长度的用于CAD模型的缺省单元可以是毫米，英寸等。在模型的进口，将其转移到在UNIGINE使用米。因此，您可能需要在导入时缩放模型以获取适当的大小。指定的值不影响规模该模型已添加到全世界。