[vtkusers] One huge, or many tiled screenshots for PanoJS3 with VTK?

[Bill Lorensen]

vtkRenderLargeImage should do the trick. Here is an example:
http://vtk.org/Wiki/VTK/Examples/Cxx/Visualization/RenderLargeImage

On Sun, Dec 11, 2011 at 12:13 PM, Anders Wallin
<anders.e.e.wallin at gmail.com> wrote:
> Hi all,
>
> I'd like to use PanoJS3 (http://www.dimin.net/software/panojs/) for
> some big images/visualizations generated with VTK.
> Did anyone else already do this? some notes/info online?
> OR, is there an AJAX or webGL solution which would allow interactive
> exploring of a VTK scene through a browser?
>
> I see two possible approaches:
> 1. Render an original image with a huge pixel count. I tried defining
> a renderwindow larger than
> my monitor, but the screenshot I get with WindowToImageFilter is
> restricted to the monitor size.
> Would it be possible to render larger images using off-screen rendering?
> I am thinking several (tens, hundreds?) times a normal 30" screen
> which is 2560x1600 pixels.
>
> 2. render smaller tiles with VTK, panning/zooming the camera
> appropriately. I am guessing the
> zooming in/out by a factor of 2 will not be that hard. What about panning?
> How do I move the camera so that the rendered image is shifted e.g.
> exactly 256 pixels?
>
> thanks,
>
> AW
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