Hello everyone, new here and am hoping for a little advice, I have looked for various solutions for this and am at a bit of a loss as I cant find either a tutorial or a program that seems to fit what I after.
So, I am a land surveyor and also do surface modelling of quantity calculation. This means that I am generating 3D site models of both topographical data and also the design profile of the site. This is done as part of the work and getting into the likes of 3DS or Cinema is not an issue for me. The problem is in the correct generation of both the camera position and settings, which I am struggling to match using the tools in these progs.
I can get a working camera position to drop in geometry and localised models, but as my models effectively cover an extremely large portion of the site, its not possible to get a match that works over the entire scheme. I have tried lens correction in photoshop first and this only seems to make the matter worse, so I am actually at a bit of a loss. If I can get a working solution then I'm happy to move my workflow to a new program. At present I am going from my survey package, outputting to AutoCAD and going from there.
The attachments show the original photo, the CAD output and the final render.
My workflow at present is
1. Set background and use camera calibrator (usually a grid due to the lack of right angles) in Cinema to get an approximate position.
2. Move model origin to point definable on photo (which is based on the topographical lines as reference point).
3. Rotate and scale uniformly.
What I am then having to do is basically scale the drawing in each axis and eye it in to suit. I am still using the topo survey data at this point for reference.
Coming from an AutoCAD background this obviously just doesn't sit well with me, and I cant seem to get the Campoints thing working in Max due to the fact that generally there are not huge elevation changes on the sites, or maybe I am just doing it wrong???
Ideally I would love to be able to pepper the photograph with a load of reference marks, and then assign an X,Y,Z value for each of the references. Surely that would be enough to calculate the camera position and settings?
Anyway, sorry ifs a long post, but all help appreciated, especially from those I guess that are used to overlaying housing development masterplans over aerial images.
Thanks in advance
Ritchie
