matching cams to geo

[meldrew]

Hi all,

 

I'm trying to align 5 x HD cams (orthographic) along a 960 x 10.8 grid so that I can split the render across them.

 

Is there a specific & technically 'correct' way to do this?

 

At the moment I am just manually placing the cameras along the geo in the scene, but this seems pretty dangerous/lacking accuracy.

 

I'd also (ideally) like a way to kill any geo/points out of view when rendering each cam. I remember seeing a setup for this (using the frustum) but it's eluding me today - Can't find it anywhere.

 

Any tips, as always, very much appreciated.

 

Thanks!

cam_geo_alignement.hip

[meldrew]

Am just testing tiled rendering now... (Apologies, I should have thought of that before posting)

 

Would still appreciate some suggestions on killing geo outside of the individual tiles though.

[kleer001]

 

 

> Would still appreciate some suggestions on killing geo outside of the individual tiles though.

 

How much extra geometry are we talking about? How are you constructing your geometry?

 

Are you just wanting a frustum culler? There's a few ways to do it. I prefer a camera based volume (max size 80 or so) into a group sop then kill that group. Other people prefer a UV projection technique.

 

here's a bit of discussion:

 

http://forums.odforce.net/topic/15909-sop-level-camera-frustum/

[meldrew]

> Would still appreciate some suggestions on killing geo outside of the individual tiles though.

 

How much extra geometry are we talking about? How are you constructing your geometry?

 

Are you just wanting a frustum culler? There's a few ways to do it. I prefer a camera based volume (max size 80 or so) into a group sop then kill that group. Other people prefer a UV projection technique.

 

here's a bit of discussion:

 

http://forums.odforce.net/topic/15909-sop-level-camera-frustum/

 

My geo is lots (millions) of points scattered onto a geo surface.

 

In the end I have settled on downscaling the amount of points in my scene (500k), and rendering out the geo with a wedge & offsetting the scatter seed for each. Leaving me with 5mil points.

 

That way I can work nicely in the scene, and all the heavy lifting is done with mantra.

 

(Here's Peter Quint's video explaining the technique - for any other noobs out there like me )

 

https://vimeo.com/154723870

 

Thanks for the frustum discussion link though - Have bookmarked it as it will come in very handy in the near future I'm sure!

Edited April 13, 2016 by meldrew