1- The lightmap technique gets it done all in one pass
2- (This is speculation, since we've not tested it) The CCTV shader is probably easier to setup and use, but it is a canned solution, also probably limited to what the camera can see.
3- Lightmap allows you to use any geometry, topology, or UV map you wish, so you have a lot of flexibility for distortion effects.
I would think it is possible to build a lightmap shader directly into a camera so ultimately we could get the same CCTV functionality in XSI.
> Makes perfect sense. What I was hoping for was a method that allowed
> everything to be done in one pass, as it does in Lightwave with this shader.
>
>
> Funny, no matter how much you spend on 3D software, there are always things
> that much cheaper software can do. Logically, one would think XSI can do
> anything Lightwave can, and then a whole lot more, but Newtek keeps throwing
> wrenches in the works. Lightwave 9 addresses many of the issues we've had
> in the past, the new team is doing a lot of needed work - I think we'll be
> upgrading.
>
> Adrian
>
>
>
> -----Original Message-----
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of
> Andre DeAngelis
> Sent: Wednesday, February 15, 2006 2:17 PM
> To: XSI(at)Softimage.COM
> Subject: RE: CCTV shader
>
> Of course, but you have to remember that your CCTV images (cameras) need
> to be rendered first.
>
> Then render the final pass with all the CCTV images mappes to the TV's.
>
> So in effect, you set up setting up n+1 passes (n being the number of
> frames) and can avoid comping altogether if you want to.
>
> Of course, if you want the feedback effect, you may have to set up many
> more passes.
>
> Make sense?
>
> -----Original Message-----
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf
> Of Adrian L
> Sent: Wednesday, February 15, 2006 2:04 PM
> To: XSI(at)Softimage.COM
> Subject: RE: CCTV shader
>
> I know this would be very easy to do in comps.. as many passes as
> necessary, one for each camera view. But being able to have it all
> happen in the same render would be a great time-saver. Is it not
> possible to 'pipe' the output from several cameras to different surfaces
> in a render?
>
> Adrian
>
>
> -----Original Message-----
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf
> Of Andre DeAngelis
> Sent: Wednesday, February 15, 2006 1:35 PM
> To: XSI(at)Softimage.COM
> Subject: RE: CCTV shader
>
> Seems like a cool little tool but hardly unachievable.
>
> Passes copuld do the trcik, by piping the texture from the previous
> frame onto the screens. Then in the comp, just offset the screen
> images.
>
> -----Original Message-----
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf
> Of Adrian L
> Sent: Wednesday, February 15, 2006 1:20 PM
> To: XSI(at)Softimage.COM
> Subject: CCTV shader
>
> Lightwave has just added a CCTV shader to the new version.
>
> http://www.newtek.com/lightwave/lw9_demos.php
>
> Does XSI have anything like this? Could be very useful for a project we
> have coming up.
>
> Adrian
>
>
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