Cebas GmbH

finalRender Stage-1

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The Magic of Motion Blur

The #1 wish we had to implement in finalRender Stage-1 was true 3D motion blur, and we actually took the challenge to build one of the most robust methods to raytrace 3D motion blur.
In contrast to a fake implementation, finalRender Stage-1 introduces true 3D motion blur that does not fall apart, even under extreme situations.
The image shown below, illustrates how a good 3D motion blur should work. Unlike other applications, finalRender has no problem at all rendering such complex motion blur situations. As you can see, the propeller has an incredibly high rotational speed, thus the motion blur is in full action!
You might find it interesting that the shadow is well defined. This is correct as the shadow does not move (so there is no motion blur at all).

As a contrast, we would like to show an image that uses an "easy" way of implementing motion blur. Such a rendering method is called image motion blur (a 2D effect). This is unlike the true 3D motion blur, found in finalRender Stage-1.

What about other implementations?

As a professional 3D artist, you know very well that a proper 3D motion blur is a science on its own!
Let the rendered images speak for themselves and see what results you can get with different ways of implementing motion blur. Once again, we would like to show the 2D image blur approach as seen below.

Below is the true 3D motion blur!

Below is a rendering created with finalRender Stage-1. As you can see, a true 3D motion blur with accurate spatial sampling can't go astray even in such extreme situations.

Is it really so complicated?

There are so many things that need to be considered, especially if you wish to raytrace 3D motion blur really fast. And you know, when we talk about fast- we mean it! With finalRender Stage-1, you will experience another level of real speed when it gets into rendering true 3D motion blur.
Let us give you another example of what a good motion blur should be able to do. Take a look at this image:

This is what a 2D motion blur does

This result is more than bad for a professional production environment, don't you agree? However, 2D motion blur can be rendered very fast and in some scenes it works out fine. But if you need to get it truly realistic, there is only one way- the finalRender way!
In the image below, you can see that the 2D motion blur fails dramatically in the center object of the propeller. It is blurred even when it should not be blurred.

Motion Blur for Animated Texture Maps

The image shown below illustrates a new unique feature of finalRender Stage-1, motion blur for animated texture maps. No single object movement was done in the illustration below. The texture was UV animated.