motion blur in still image

[troyhome]

I've looked and can't find anything indicating how to render motion blur in an image using vray for sketchup. It would great to render car movement in camera. Is this possible? any resources? I know i can do it in post but I have other applications for motion blur in mind that are less simple to do in post.
Thanks!

[natali.velcheva]

Hello,

In SketchUp, only camera transformations can be animated, not objects. That is why the V-Ray allows only camera motion blur, not object motion blur. Even if you attempt to simulate object movement by animating the camera (scene view) moving towards/away the direction a car model is facing, it will not be possible to limit the motion blur only to the car. It will affect the whole scene.

Kind regards,
Natali

[troyhome]

Okay, thanks. Any tutorials on animation and Vray? I particularly liked the swaying trees in a recent Chaos Group video about Vray for SketchUp...

[natali.velcheva]

In this part of the V-Ray 3.6 Webinar you can find more information about animation https://www.youtube.com/watch?v=HZ_F...outu.be&t=1280. The way animated objects can be used in SketchUp is to import already animated vrmesh or alembic files as proxies. You can either create such proxy files in any software with such capabilities or find such assets on the internet.
Additionally if you have V-Ray for other platforms capable of producing object animation you can export animated vrscene files for use in V-Ray for SketchUp.

Apart from that, V-Ray can render Sun animations produced by SketchUp (as demonstrated in the Webinar). If there is a scene1 with sunrise and a scene2 with sunset, an animation can be rendered with changing Sun position.

Furthermore, the V-Ray procedural Water texture can be animated as well. There is a link where you can see how it is done https://www.youtube.com/watch?v=plMsC1cUlC8.

The last but not least, there is a certain workflow which can speed up animation rendering by eliminating the need of calculating the IM/LC prepasses for each frame https://www.youtube.com/watch?v=8uSwUS3xJpY. There are Step-by-Step instructions in the video description.


Regards