Sapphire 2019 - mocha tracking for lens hotspot


#1

Is it possible to use mocha to provide hotspot tracking of lens flare in Sapphire 2019 the way you can in Continuum 2019?

If not, consider this a request.

Thoughts? Thx


#2

You can do this right now with a two layer process using LensFlare autotrack. Here’s a tutorial explaining how in Media Composer, but the same technique can apply to all host applications.

https://borisfx.com/videos/how-to-track-lens-flares-automatically-in-avid-media-composer/

Long term thinking, yes, we would like to implement a more elegant solution for Sapphire, similar to the new parameter tracking workflow in Continuum 2019.

Thanks,
Brian


#3

Thanks Brian.

Yes I was thinking about Continuum 2019 when I mentioned this.

Cheers

Steve


#4

So hotspot tracking in Continuum Lens Flare 3D is handled via a secondary layer input which is used to direct the filter to a pixmap that is used for the hotspots. The pixmap can be a still or video clip and the user has control over which areas in the pixmap are going to produce a tracked lens flare via a threshold parameter. Lower values will produce more flares but of course it’s all dependant on the pixmap source. It’s a great way to control where in the image flares will appear without going to a motion tracker. Plus, you could literally add hundreds of flares to a shot with the right pixmap source, something like a black and white binary bitmap that has lots of white dots - each white dot in the pixmap would serve as the source for a lens flare. Of course, as Brian mentioned, you can always use the built-in mocha tracker to lock a lens flare to a specific location in the image.

Cheers,
Peter.


#5

Thanks Peter - I realized the enormous power of the Sapphire implementation after watching the tutorial Brian linked-to. I guess I was stuck on the tracking improvements in Continuum 2019 and didn’t think about the benefits of the Sapphire approach. All I can say is that I’m glad to have both sets of tools!