Syntheyes Lens Distortion Algorithms?

[Sushidelic]

Hi!
As our matchmove department is using Syntheyes as primary tracking software, we run some tests and discovered, that vray's and syntheyes distortion algorithms don't match exactly. I wonder if it was possible to implement a syntheyes style lens distortion to the VrayPhysicalCam. Details about how this is handled can be found on this http://www.ssontech.com/content/lensalg.htm page.
The problem is, that in syntheyes it is applied as a not 100% correct 2d post effect. So basically, I know that vray is doing it correctly, but the question is, if this kind of 2d-fake distortion could be implemented already while rendering as we need the 3D plates to be matching the exact syntheyes distortion?

Examples:

Vray Distortion 2.0


Inverse Distortion from Syntheyes 0.120


Thanks a lot,
Michael

[vlado]

It can be implemented, yes. Different programs do image distortions with slightly different formulas, so that would be a problem that will come up frequently. I'm already thinking of adding an option for choosing among several distortion mapping methods.

Best regards,
Vlado

[vlado]

I've been trying to implement the SynthEyes distorion into the V-Ray physical camera; here are my attempts so far:



Full-res images here:
http://www.spot3d.com/vray/images/di.../vray_grab.png
http://www.spot3d.com/vray/images/di...heyes_grab.png

Are there other camera tracking programs that you would be interested in?

Best regards,
Vlado

[panthon]

The most popular out there are Boujou and Pftrack. I mean the ones big guys use!

[Da_elf]

i mainly use icarus

[vlado]

Well, from what I can see Boujou uses the same formula as SynthEyes... so one problem less there Not sure about pftrack.

Best regards,
Vlado

[panthon]

Oh yeah i almost forgot that a variation of realviz matchmover will be available for max free of charge and will be called MMtrack. It's in fact a max plugin and it means it will be integrated with the interface of the application. Providing it's finally free as stated, I would take a look at it, cos it can quickly become the standard tracking solution for max users...I will give it a go for sure!

More info here:

http://www.deathfall.com/article.php?sid=6320

As i can see right now, this plugin will be available on August, 16th 2006, that is tomorrow

[Sushidelic]

WOW just missed this post today! That's really great news for our camera guys - whenever you come to Germany they'll owe you a beer or more!

Big thanks!