Ventuz Forum

I'd like to replicate the effect whereby light streaks animate along the edge of an object (tracing the geometry) or along a path (3D light stroke effect).

I've seen this effect numerous times – think glowing lines highlighting the contours of a car that's rotating in 3D space for example, or tracing the outlines of 3D objects. I've created similar animated effects in 2D before, but I'd really appreciate it if someone could please point me in the right direction as to how to achieve it in 3D, and more importantly, how to achieve this within Ventuz..? So far, searching has not been my friend...

Hi!

Do you mean effects like in the video here:
http://www.stereolize.com/news/2012/111 ... lauch.html

You can achieve this by modeling according geometry which fits the path of the glow animation. This model must also have appropriate UV coordinates so that you can animate an texture along this geometry.
I have attached a very very simple scene which demonstrates the functionality.

Best Regards
Karol

Karol wrote:Do you mean effects like in the video here? You can achieve this by modeling according geometry which fits the path of the glow animation. This model must also have appropriate UV coordinates so that you can animate an texture along this geometry. I have attached a very very simple scene which demonstrates the functionality.

Many thanks Karol – I was hoping someone would chip in and point me in the right direction, and really appreciate your input

That's not quite the effect I was looking to replicate, but it's very much along the same lines (sorry, no pun intended!). Initially my aim is to create seemingly random 3D light streaks, but ultimately I'll want these streaks to trace out geometry of some kind (e.g. a car, a product or just a logo). Your scene confirmed what I thought was the case: I need to animate the position of a texture with gradient alpha channel along the corresponding geometry... now I just need to play about with how best to prepare the required geometry in Cinema4D.