运动模糊

参考

面板:

渲染 ‣ 运动模糊

Blender动画默认渲染为 完全静止 的图像序列。尽管这对定格和延时动画很棒，但这不够真实，因为高速移动的物体在运动方向看起来是模糊的，不管是在电影单帧或现实世界的摄影中。

Note

Motion blur is only available in final renders and is not shown in the 3D Viewport and thus Viewport Renders.

位置

控制在什么时候快门相对于框架打开。

此帧开始

快门在当前框架中开始打开。

帧中

快门在当前框架中完全打开。

此帧结束

快门在当前框架中完全关闭。

快门

一帧以内快门打开到关闭的时间占比。

背景分离

由后期处理模糊使用，以避免在前景上模糊背景。较低的值将减少背景渗入前景元素。

最大模糊

Maximum blur distance a pixel can spread over. A value of 0 will disable the post-process blur and only use the accumulation blur.

Note

High maximum blur values may also reduce the quality.

Eevee uses a fast post-process vector blur using a vector motion pass. This blurs the image between three time steps using pixel velocity. This technique is fast and produces clean gradients, but issues can occur at object borders or if the motion is locally too complex; for example, if there are many vector variations in a small area.

This technique uses random sampling and the noise amount is proportional to the sample count found in Properties ‣ Render ‣ Sampling ‣ Render Samples.

Note

Memory usage (VRAM) will be three times higher for objects using deformation motion blur if using post-process blur.

Note

Alpha blended surface or volumetric effects will not have the correct velocity and will not be correctly blurred by this technique. Use the accumulation blur for that.

步数 (阶梯)

该项控制累积模糊的步数，从而控制其精确性。步数越多渲染时间越长。

Note

当使用多个时间步数时，渲染样本数将四舍五入到下一个多个步长，以确保样本在各个步长之间均匀分布。

Eevee splits the render into multiple time steps and accumulates the result which is known as Accumulation Motion Blur. This technique is precise but requires many steps for clean gradients. This is used in combination with the post-process blur to handle the inter-step gaps. Each step corresponds to a full scene re-evaluation and can add a lot of overhead to the render time. By adding more steps you can also reduce the Max Blur options because the post-process blur has to cover a smaller distance.

例子

无运动模糊。	只有后处理模糊。
步数4没有后处理模糊。	步数4有后处理模糊。
步数32没有后处理模糊。	步数32有后处理模糊。