使用Impostors Creator生成Impostors

Specifies if the albedo texture should be generated for the impostor. Here you can also specify a postfix for the texture name (_alb by default). For this texture, the following modes are also available:指定是否应为冒充者生成反照率纹理。在这里，您还可以为纹理名称指定后缀（默认为_alb）。对于此纹理，还可以使用以下模式：

• With SSAO — when chosen, the albedo color is multiplied by the SSAO coefficient. It allows you to improve the relief effect of the impostor.With SSAO —选择后，反照率颜色将乘以SSAO系数。它使您可以改善冒名顶替者的救济效果。
• Without SSAO — the albedo color from the albedo buffer is saved to the texture. If the option is set, the generated impostors will be lighter.Without SSAO —来自反照率缓冲区的反照率颜色被保存到纹理中。如果设置了该选项，则生成的冒名顶替者将更轻。

Specifies if the normal texture should be generated for the impostor. Here you can also specify a postfix for the texture name (_n by default). For this texture, the following modes are also available:指定是否应为冒名顶替者生成正常纹理。在这里，您还可以为纹理名称指定后缀（默认为_n）。对于此纹理，还可以使用以下模式：

• For Vegetation — when chosen, the grabbed normal texture looks rounded (i.e. it differs from the normal data stored in the normal buffer).For Vegetation-选中后，抓取的普通纹理看起来是圆形的（即，它不同于存储在普通缓冲区中的普通数据）。
• For Other Objects — the normal data from the normal buffer is saved to the texture.For Other Objects-来自普通缓冲区的普通数据保存到纹理。

The difference between these modes is noticeable when the original vegetation object has translucency properly set up.当原始植被对象具有正确设置的半透明性时，这些模式之间的差异就很明显。

Specifies if the translucence texture should be generated for the impostor. Here you can also specify a postfix for the texture name (_t by default). For this texture, the following modes are also available:指定是否应为冒名顶替者生成半透明纹理。在这里，您还可以为纹理名称指定后缀（默认为_t）。对于此纹理，还可以使用以下模式：

• For Vegetation — when chosen, the grabbed translucence texture stores information on vegetation translucence. It imitates the translucency of a tree crown at the edges.For Vegetation —选中时，抓取的半透明纹理存储有关植被半透明的信息。它模仿树冠在边缘的半透明性。
• For Other Objects — the translucence data from the translucence buffer is saved to the texture.For Other Objects —来自半透明缓冲区的半透明数据被保存到纹理。

Aspect ratio (width/height) of the grabbed images. The aspect affects the size of the impostor texture cell that stores the grabbed frame (see the related material parameter). For example:抓取图像的长宽比（宽度/高度）。外观会影响存储抓取帧的伪造纹理单元的大小。例如：

• If you need to grab the impostor for an object which height far exceeds the width (e.g. pine tree, lamp post, etc.), you should use the 4/1 aspect. In this case, the height of the texture cell will be 4 times bigger than the width. For horizontal objects (e.g. fallen pine tree), the 1/4 aspect should be used.如果您需要抓住高度超过宽度的物体（例如松树，灯柱等）的冒名顶替者，则应使用4/1宽高比。在这种情况下，纹理单元的高度将比宽度大4倍。对于水平物体（例如倒下的松树），应使用1/4宽高比。
• If the original object's width to height aspect is near 1 (e.g. spherical or cuboid-shaped objects), the 1/1 value should be used.如果原始对象的宽高比接近1（例如球形或长方体形的对象），则应使用1/1值。

Aspect = 4/1

The number of frames to be grabbed into the impostor texture when the camera rotates horizontally around the object (i.e. left or right). Available values: 4, 8, 16, 32, 64.相机围绕对象水平旋转（即，向左或向右）时，要捕获到冒名顶替者纹理中的帧数。可用值：4, 8, 16, 32, 64。

Phi = 4

Phi = 8

The number of frames to be grabbed into the impostor texture when the camera rotates vertically around the object (i.e. upward or downward). Available values: 1, 2, 4, 8, 16.当相机围绕对象垂直旋转（即向上或向下）时，要捕获到冒名顶替者纹理中的帧数。可用值：1, 2, 4, 8, 16。

Theta = 2	Theta = 4

注意

When selected value is equal to 1, Lerp Mode for the impostor material (billboards_impostor_base and grass_impostor_base) shall be set to Horizontal Only.当所选值等于1时，冒名顶替者材质（ billboards_impostor_base 和 grass_impostor_base ）的Lerp Mode应设置为Horizontal Only。