Due to limited resolution of images and computer screens, pixel filters are needed to avoid Aliasing. This is achieved by slightly blurring the image to soften edges.
这个选项会柔化很多图像; 较低的值可提供更清晰的渲染，较高的值更柔和并减少锯齿。
渲染透明背景，方便后期处理将渲染图合成到另一个图像上。
添加到渲染缓冲区大小的百分比。这选项会增加性能消耗，但会修复渲染图像边缘的瑕疵。