Cylindrical Lens

圆柱透镜

Cylindrical Lens

圆柱透镜

So what is a cylindrical lens good for? Well, every matte painter out there will be happy to have this additional tool with which to work.

那么，圆柱透镜有什么用呢？那么，每一个哑光油漆工人都会很高兴有这个额外的工具来工作。

Let’s say the modeling department sends you a rough scene from which you have to do your matte painting. Render the scene using the cylindrical lens, then paint your scenery. You can project the image cylindrically using camera mapping and the camera can then pan across a much larger area than would be possible using other projection types.

假设模特部门发给你一个粗糙的场景，你必须从中进行哑光绘画。使用柱面镜头渲染场景，然后绘制你的风景。您可以使用相机映射以圆柱形方式投影图像，然后相机可以在比使用其他投影类型可能的更大的区域内平移。

Example

例子

Proceed as follows when creating a 360° rendering:

创建360 ° 渲染时按照以下步骤操作:

1. Position the camera at the center of your scene. Your angle of view should be perfectly parallel to the floor ( 将摄像机放置在场景的中心。你的视角应该与地面完全平行R.P and 及R.B. = 0)
   
2. In the Render Settings, set 在渲染设置中，设置Width 宽度 to a larger value in relation to 变成一个更大的值Height 身高 (in the example above it was set to 1500*200 pixels) (在上面的例子中，它被设置为1500 * 200像素)
   
3. For the cylindrical lens, set the 对于柱面透镜，设置Horizontal Field of View 横向视场 to 到360° 360 ° and the 及Vertical Size 垂直尺寸 to a fairly high value (in the example above it was set to 设置为相当高的值(在上面的例子中设置为700). You will have to experiment a little to achieve undistorted renderings. ).你将不得不做一些实验来获得不失真的渲染效果