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资产类型

There are a number of file types supported by the UNIGINE assets system. This page contains a categorized list of these file types along with a brief description.UNIGINE支持多种文件类型资产系统。此页面包含这些文件类型的分类列表以及简要说明。

Geometry and Animation几何与动画#

Mesh is the basic unit, that consists of a set of polygons and is used to create geometry for worlds in a UNIGINE project.网格是基本单位,由一组多边形组成,用于为UNIGINE项目中的世界创建几何。

Some meshes can be animated, apart from a set of polygons representing its surfaces, such mesh has a hierarchical set of interconnected bones (a skeleton or a rig) which can be used to animate the vertices of the polygons. Another way to animate a model is to create morph targets (or blend shapes), these are "deformed" versions of a mesh, stored as a series of vertex positions. In each key frame of an animation, the vertices are interpolated between these stored positions.除了代表其表面的一组多边形外,某些网格还可以进行动画处理,这种网格具有一组层次化的互连骨骼(骨骼或装备),可用于为多边形的顶点设置动画。制作模型动画的另一种方法是创建变形目标(或混合形状),它们是网格的“变形”版本,存储为一系列顶点位置。在动画的每个关键帧中,在这些存储的位置之间插入顶点。

Exported 3D model导出的3D模型

You can create 3D models, rigs, and animations in an external modeling application (3DSMax, Maya, Softimage, etc.), and then import them to your UNIGINE project via the Asset Browser.您可以在外部建模应用程序(3DSMax,Maya,Softimage等)中创建3D模型,装备和动画,然后通过资产浏览器

注意
It is recommended to use FBX as an intermediate file format to bring your 3D models to UNIGINE. This format is supported by the most popular 3D editors: Autodesk Maya, Autodesk 3ds Max, Blender, Modo, etc.建议使用FBX作为中间文件格式,以将3D模型带入UNIGINE。最受欢迎的3D编辑器支持这种格式:Autodesk Maya,Autodesk 3ds Max,Blender,Modo等。
Format Description
.fbx

A 3D model or a scene created in an external 3D modeling application. It can contain static meshes, skeletal meshes, animations, morph targets, light sources, and cameras.在外部3D建模应用程序中创建的3D模型或场景。它可以包含静态网格物体,骨架网格物体,动画,变形目标,光源和相机。

Learn more about FBX import.了解有关FBX导入的更多信息。

.dae

A 3D model or a scene created in an external 3D modeling application and stored in DAE format (COLLADA). It can contain static meshes, skeletal meshes, animations, morph targets, light sources, and cameras.在外部3D建模应用程序中创建并以DAE格式(COLLADA)存储的3D模型或场景。它可以包含静态网格物体,骨架网格物体,动画,变形目标,光源和相机。

Import settings for DAE files are the same as the ones used for FBX import.DAE文件的导入设置与用于FBX导入。

.3ds

A 3D model or a scene created in an external 3D modeling application and stored in 3DS format (3D MAX). It can contain static meshes, skeletal meshes, animations, morph targets, light sources, and cameras.在外部3D建模应用程序中创建并以3DS格式(3D MAX)存储的3D模型或场景。它可以包含静态网格物体,骨架网格物体,动画,变形目标,光源和相机。

Import settings for 3DS files are the same as the ones used for FBX import.3DS文件的导入设置与用于FBX导入。

.obj

Static polygonal geometry stored in OBJ format — namely, the position of each vertex, the UV position of each texture coordinate vertex, vertex normals, and the faces that make each polygon defined as a list of vertices, and texture vertices. The file format is open and has been adopted by other 3D graphics application vendors.以OBJ格式存储的静态多边形几何-即每个顶点的位置,每个纹理坐标顶点的UV位置,顶点法线以及将每个多边形定义为顶点列表和纹理顶点的面。该文件格式是开放的,并已被其他3D图形应用程序供应商采用。

注意
If you want to import your 3d model with all materials assigned, you should import all corresponding material library assets (*.mtl files) either prior to importing the *.obj file or together with it.如果要导入已分配了所有材质的3d模型,则应在导入*.obj文件之前或与其一起导入所有相应的材质库资源(*.mtl文件)。
.stp, .step A 3D CAD file based on the Standard for the Exchange of Product Data (STEP) format. Is used mostly for solid models.一种3D CAD文件基于产品数据交换标准(STEP)格式。主要用于实体模型。
.igs, .iges A CAD file format based on the Initial Graphics Exchange Specification (IGES) 2D/3D vector format. It can contain wireframes, freedom surface or solid modeling representations, or circuit diagrams.一种电脑辅助设计文件格式基于初始图形交换规范(IGES) 2D/3D矢量格式。它可以包含线框,自由曲面或实体建模表示或电路图。
.brep Boundary Representation file format. Used for representing shapes by defining boundary limits.边界表示文件格式。用于通过定义边界限制来表示形状。
.stl A format for storage of stereolithography CAD models. STL files contain only the surface geometry of a 3D object described by triangles. This format is used for 3D printing, rapid prototyping, and computer-aided manufacturing.立体光刻的存储格式电脑辅助设计楷模。 STL文件仅包含由三角形描述的3D对象的表面几何形状。此格式用于3D打印,快速原型制作和计算机辅助制造。
.mesh Built-in file format, that describes static and skinned geometry. It supports multiple surfaces and variable number of morph targets (blend shapes) for each surface, as well as multiple named animations stored in the single file.内建的文件格式,用于描述静态和蒙皮的几何图形。它支持多个表面和每个表面可变数量的变形目标(混合形状),以及存储在单个文件中的多个命名动画。
.anim Built-in file format, that describes skinned animation. It is used together with *.mesh file that contains a bind pose. Thus, you can have a single skinned mesh (*.mesh) and multiple animations for it.内建的文件格式,描述蒙皮动画。它与包含绑定姿势的*.mesh文件一起使用。因此,可以有一个蒙皮的网格(*.mesh)和多个动画。

Textures贴图#

Textures are images that are commonly used in materials. When a material is applied to a surface, textures are mapped to it. They can be either applied directly, as albedo textures, for instance, used as masks, or the values of the texture's pixels can be used for other calculations. Textures can also be used directly, e.g., as environment cubemaps, or to draw a projection of a Projected Light Source.纹理是通常用于材料。将材料应用于表面时,纹理将映射到该表面。它们既可以直接应用,例如作为反照率纹理用作遮罩,也可以将纹理像素的值用于其他计算。纹理也可以直接使用,例如,作为环境立方体贴图,或绘制对象的投影。投射光源

A texture mapped to a 3D mesh映射到3D网格的纹理

Textures are generally created using an external image-editing application, such as GIMP or Photoshop, and then imported via the Asset Browser. Some textures, such as render textures, are generated by the UNIGINE Engine. They generally take some information from the scene and render it to a texture to be used elsewhere.通常使用外部图像编辑应用程序(例如GIMP或Photoshop)创建纹理,然后通过Asset Browser导入。一些纹理(例如渲染纹理)由UNIGINE Engine生成。他们通常从场景中获取一些信息,并将其渲染为纹理以在其他地方使用。

Several textures can be used in a single material for different purposes. For instance, a material may have an albedo texture, an ambient occlusion texture, a normal map, etc. In addition, there may be a map for the Emission and Roughness stored in the alpha channels of one or more of these textures. 可以在一种材料中使用多种纹理以达到不同的目的。例如,一种材料可能具有反照率纹理,周围遮挡纹理,法线贴图等。此外,可能存在一个或多个这些纹理的alpha通道中存储的EmissionRoughness的贴图。

UNIGINE supports the most popular bitmap texture formats (see the table below) along with the following features:UNIGINE支持最受欢迎的位图纹理格式(请参见下表)以及以下功能:

  • 8, 16, and 32 bit precision per channel每通道8, 1632位精度
  • Alpha channelAlpha频道
  • Baked MIP-levels烘焙的MIP级别
Format Description
.png Image file stored in the Portable Network Graphic (PNG) format; contains a bitmap of indexed colors under a lossless compression; commonly used to store graphics for Web images.图像文件存储在便携式网络图形(PNG)格式;在无损压缩下包含索引颜色的位图;通常用于存储Web图像的图形。
.jpg, .jpeg, .jpe, .jif, .jfif, .jfi Image file stored in the Joint Photographic Experts Group format using lossy compression.图像文件存储在联合摄影专家组格式使用有损压缩。
.tiff Image file stored in the TIFF (Tagged Image File Format) format using losless compression.图像文件存储在TIFF(标记图像文件格式)格式使用无损压缩。
.tga Image in raster graphic file format designed by Truevision; supports 8, 16, 24, or 32 bits per pixel at a maximum of 24 bits for RGB colors and 8-bit alpha channel.由以下人员设计的光栅图形文件格式的图像真视;对于RGB颜色和8位alpha通道,每个像素最多支持24位,8、16、24或32位。
.rgb, .rgba Bitmap in RGB/RGBA format.RGB / RGBA格式的位图。
.psd Image file created by Adobe Photoshop, a professional image-editing program; may include image layers, adjustment layers, layer masks, annotation notes, file information, keywords, and other Photoshop-specific elements.由专业的图像编辑程序Adobe Photoshop创建的图像文件;可能包括图像图层,调整图层,图层蒙版,注释注释,文件信息,关键字和其他特定于Photoshop的元素。
.hdr High Dynamic Range image. These are most commonly used for environment maps.高动态范围图像。这些最常用于环境地图。
.exr Image file stored in high-dynamic-range imaging image file format created by the Industrial Light & Magic visual effects company.以高动态范围成像图像文件格式存储的图像文件工业光魔视觉效果公司。
.pgm Netpbm grayscale image.Netpbm灰度图像。
.png Image file stored in the PNG (Portable Network Graphics) format.图像文件存储在PNG(便携式网络图形)格式。
.ppm Image file stored in the PPM (Portable Pixmap) format.图像文件存储在PPM(便携式Pixmap)格式。
.sgi Image file stored in the SGI (Silicon Graphics Image) format.图像文件存储在SGI(硅图形图像)格式。
.ies IES Profile format defined by the Illuminating Engineering Society (IES). Used to make Omni and Projected light sources cast light realistically based on real-world measured data.IES由照明工程协会(IES)定义的配置文件格式。用于使OmniProjected光源根据实际测量数据逼真地投射光。
.dds

File in DirectDraw Surface format, contains compressed or uncompressed image data, which is optimal for GPUs. The following types of compression are available:归档在DirectDraw表面格式,包含压缩或未压缩的图像数据,这是GPU的最佳选择。可以使用以下类型的压缩:

  • DXT1 (BC1/S3TC) to compress RGB8 data without the alpha channel or 1-bit alpha. It gives the best compression ratio — 1:6, resulting in an image that uses 0.5 bpp (bits per pixel).DXT1 (BC1/S3TC)可在没有alpha通道或1位alpha的情况下压缩RGB8数据。它提供了最佳的压缩比-1:6,从而生成的图像使用0.5 bpp(每像素位数)。
  • DXT3 (BC2) to compress RGBA8. It allows encoding the alpha channel, but the file would be twice as large as DXT1. The alpha channel is encoded without compression, which makes this format fit for images with varying alpha values. Compression ratio — 1:4; 1 bpp.DXT3 (BC2)压缩RGBA8。它允许对Alpha通道进行编码,但是文件的大小是DXT1的两倍。 Alpha通道无需压缩即可进行编码,这使得该格式适合具有不同Alpha值的图像。压缩比:1:4; 1 bpp。

    警告
    Although the engine supports DXT3(BC2), it is recommended to use DXT5(BC3) instead in order to have textures of a good quality.尽管引擎支持DXT3(BC2),但建议改用DXT5(BC3)以获得高质量的纹理。
  • DXT5 (BC3) to compress RGBA8. This format is in fact a modification of DXT3. The alpha channel is stored in compressed form and fits for cases with more or less homogeneous alpha. This format is suitable for the shading texture.DXT5 (BC3)压缩RGBA8 。实际上,这种格式是DXT3的修改。 Alpha通道以压缩形式存储,适合具有或多或少同质Alpha的情况。此格式适合阴影纹理
  • ATI1 (BC4/3Dc+) to compress R8, which means it fits for compression of single-channel textures, such as the height map. Compression ratio — 1:2; 0.5 bpp.ATI1 (BC4/3Dc+)可以压缩R8,这意味着它适合压缩单通道纹理,例如height map 。压缩比:1:2; 0.5 bpp。
  • ATI2 (BC5/3Dc) to compress RG8. This format was developed specially for normal maps, because it provides a quality better than DXT1 thanks to storing two channels only with reconstruction of the trird one. But this format is also suitable for any other two-channel textures. Compression ratio — 1:2; 1 bpp.ATI2 (BC5/3Dc)压缩RG8。此格式是专门为法线贴图开发的,因为它仅通过重建第三个通道就可以存储两个通道,因此其质量比DXT1好。但是此格式也适用于任何其他两个通道的纹理。压缩比:1:2; 1 bpp。
  • ZLC1, ZLC2, LZ4 — ZLIB compressed formats that allow for a smaller memory footprint for textures stored in the system memory (these formats are not supported by graphics cards). They are useful for images that cannot be compressed using quality-loss algorithms (DXT, JPG, etc.), for example, GUI textures with thin lines that need to be rendered with pixel precision.ZLC1, ZLC2, LZ4 — ZLIB压缩格式,可以为存储在系统内存中的纹理提供较小的内存占用(图形卡不支持这些格式)。它们对于无法使用质量损失算法(DXT,JPG等)无法压缩的图像很有用,例如,带有细线的GUI纹理需要以像素精度进行渲染。
.texture Native format of RGB32F textures used for lightmapping.用于RGB32F纹理的本机格式光线映射

To learn more about importing textures, see the Texture Import Guide.要了解有关导入纹理的更多信息,请参见纹理导入指南

Materials材料#

Material defines how the surface, to which it is assigned, will look like: its interaction with lights, reflection parameters, etc. A material asset is generally linked to several texture assets.材质定义了要为其分配表面的外观:与灯光,反射参数等的交互。材料资产通常与多个纹理资产

The list of supported material assets includes the following:受支持的重大资产列表包括以下内容:

Format Description
.basemat

Built-in type representing a base material, from which other materials can be inherited.内置类型代表基础材料,可以从中继承其他材料。

Learn more about the base material file format.了解有关基础材料文件格式的更多信息。

.mat

Built-in type representing a user material inherited from the base one.内置类型代表用户资料从基础继承。

Learn more about the user material file format.了解有关用户资料文件格式的更多信息。

.mtl

Material template library MTL file, that stores description of materials for 3D models in OBJ format.材料模板库MTL文件,用于存储材料描述3D模型OBJ格式

注意
An *.mtl file should be imported together with a corresponding *.obj file referring to it.*.mtl文件应与引用该文件的相应*.obj文件一起导入。


When materials are imported along with a 3D model, only the following source data will be used (if defined):

将材料与3D模型一起导入时,将仅使用以下源数据(如果已定义):

  • Textures:纹理:

    • Diffuse (albedo) texture
    • Normal map 或 bump map
    • Specular texture
    • Light map
  • Parameters:参数:

    • Diffuse color
    • Specular color 和 power
    • Emission color
注意
As UNIGINE uses its own material system, you should adjust other material settings manually.由于UNIGINE使用自己的物质系统, 你应该调整其他材质设置手动。

Sound and Video Files声音和视频文件#

Sound assets — are the key resources for creating the proper feeling of immersion in the virtual world. UNIGINE supports virtually the unlimited number of sound sources声音资产-是在虚拟世界中营造适当沉浸感的关键资源。 UNIGINE实际上支持无限数量的声源

Either as mono or stereo files, compressed or not, they can be quickly imported into your project.无论是压缩文件还是未压缩的单声道或立体声文件,都可以将它们快速导入到您的项目中。

In the table below you'll find types of sound and video assets supported by UNIGINE.在下表中,您将找到UNIGINE支持的声音和视频资产的类型。

Format Description
.wav Waveform audio file (mono and stereo).波形图音频文件(单声道和立体声)。
.mp3 MP3 file type storing compressed audio data.MP3文件类型,用于存储压缩的音频数据。
.oga, .ogg Ogg Vorbis (or oga, Ogg Audio Profile) storing compressed audio data.奥格·沃比斯(Ogg Vorbis) (或者奥加,奥格音频配置文件)存储压缩的音频数据。
.ogv Video file that uses the open source Ogg container format; may contain video streams that use one or more different codecs, such as Theora; can be played using a variety of media players.使用开源的视频文件奥格容器格式;可能包含使用一种或多种不同编解码器的视频流,例如Theora ;可以使用各种媒体播放器播放。

Scripts剧本#

Scripts are an essential part of your project representing application logic. UNIGINE has its own scripting language — UnigineScript. It is designed to make coding easy-to-use even for junior programmers and at the same time provide the most optimal Engine usage. Scripts are platform-independent and do not require compilation.脚本是项目中代表应用程序逻辑的重要部分。 UNIGINE拥有自己的脚本语言- UnigineScript 。它旨在使编码甚至对于初级程序员也易于使用,同时提供最佳的引擎使用率。脚本与平台无关,不需要编译。

This type of assets can be created and edited in a plain text-editor. You can add scripts to your project via the Asset Browser.可以在纯文本编辑器中创建和编辑此类资产。您可以通过以下方式将脚本添加到您的项目中:资产浏览器

Format Description
.h Built-in type representing a header-file for a script written in UnigineScript.内置类型表示编写的脚本的头文件UnigineScript
.usc Built-in type representing a script written in UnigineScript.内置类型表示编写的脚本UnigineScript
.cpp (deprecated) Built-in type representing a script written in UnigineScript.内置类型表示编写的脚本UnigineScript

Presets预设值#

UnigineEditor allows saving various presets — configurations of different settings (e.g. rendering settings, gravity, sound velocity, volumes of sound sources, etc.). This type of assets can be used to configure worlds within your project.UnigineEditor允许保存各种预设-不同设置的配置(例如,渲染设置,重力,声速,声源音量等)。这种类型的资产可用于在项目中配置世界。

Format Description
.render

Built-in type that determines a configuration of rendering settings for a world.内置类型,确定配置渲染设置为了一个世界。

.physics

Built-in type that determines a configuration of physics simulation settings for a world.内置类型,确定配置物理模拟设置为了一个世界。

.sound

Built-in type that determines a configuration of sound settings for a world.内置类型,用于确定世界的声音设置配置。

.launch

Built-in type that determines a configuration of custom run options for C# (.NET 5) projects.内置类型,确定配置自定义运行选项适用于C#(.NET 5)项目。

Other Asset Types其他资产类型#

Format Description
.world

Built-in type describing a UNIGINE world (scene). One project can include several worlds. So, there is no need to create a separate project for each world. Created in the UnigineEditor.内置类型描述UNIGINE世界(场景)。一个项目可以包含多个世界。因此,无需为每个世界创建一个单独的项目。在UnigineEditor中创建。

Learn more about the creating and managing worlds.了解有关创建和管理世界的更多信息。

.node Built-in type describing any Node (or a hierarchy of Nodes) of the UNIGINE's virtual world. Created in the UnigineEditor or at runtime via the code.内置类型描述任何节点(或节点的层次结构)的虚拟世界。在UnigineEditor中创建或在运行时通过代码
.prop Built-in type describing a property. A property is a "material" for application logic. It specifies the way how the object will behave and interact with other objects and the scene environment.描述属性的内置类型。属性是应用程序逻辑的“材料”。它指定对象将如何行为以及与其他对象和场景环境交互的方式。
.landscape

Built-in type that stores generation parameters used by the Landscape Tool to generate a TerrainGlobal object. Created in the Landscape Tool.内置类型,用于存储Landscape Tool用于生成TerrainGlobal对象的生成参数。在Landscape Tool中创建。

警告
本段介绍的功能在 Community SDK 版本中不可用。
您应该升级到 Engineering / Sim SDK版本才能使用它。
.sworm

Built-in type that stores generation parameters used by the Sandworm Tool to generate a LandscapeTerrain object. Created in the Sandworm Tool.内置类型,用于存储Sandworm工具用来生成LandscapeTerrain对象的生成参数。在Sandworm工具中创建。

警告
本段介绍的功能在 Community SDK 版本中不可用。
您应该升级到 Engineering / Sim SDK版本才能使用它。
.track Built-in type, that contains the sequence of the parameters animated with keyframes along the timeline. Created in the Tracker Tool.内置类型,包含沿时间轴使用关键帧设置动画的参数序列。创建于追踪工具
.ttf The font in TTF (True Type Font) format. As a raster font, it can be scaled to any size without quality loss or pixelation, and the stored image appears the same when printed as it does on-screen. You can use any existing TTF font or create a new one.中的字体TTF(真字体)格式。作为光栅字体,它可以缩放到任意大小而不会导致质量损失或像素化,并且所存储的图像在打印时与在屏幕上显示的外观相同。您可以使用任何现有的特遣队字体或创建一个新字体。
.path The path is a spline along which an object can be moved. Such splines can be created, for example, in 3ds Max or via the API, using the Path class and then saved to the *.path file.路径是样条,对象可沿该样条移动。这样的样条可以在例如3ds Max或通过API,使用Path类,然后将其保存到*.path文件中。
.spl Built-in type to store world spline graphs. This is a text file based on the json format. A spline file contains all necessary information to define a spline graph consisting of points in 3D space connected by cubic Bezier spline segments.内置类型来存储世界样条图。这是一个基于json格式的文本文件。一种样条文件包含定义样条图所需的所有必要信息,该样条图由3D空间中由三次方Bezier样条线段连接的点组成。
.lmap Built-in type to store Landscape Layer Map. This is a binary file containing albedo, height and mask textures and settings.内置类型可存储Landscape Layer Map。这是一个包含反照率,高度和蒙版纹理和设置的二进制文件。
.cs A C# source code file representing a component used by C# Component System.AC#源代码文件,表示由以下组件使用的组件C#组件系统
最新更新: 2021-08-24
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