View Full Version : Superimposing LW objects onto Video

01-04-2009, 06:12 PM

Now that I've made some headway on using lightwave, the real mission lies ahead and that's putting these objects on existing video.

Is there a way to import video into LW in order to size up objects so that they are relative to the video? I've seen like spaceage weapons placed into someones hand but for now, I'd like just like to place something I've made on a table or desktop or something like that.

Appreciate it.


01-04-2009, 10:32 PM
it's called compositing. you'll have to google that term, as well as lightwave compositing, or lightwave tutorial compositing, or look it up in the manual.

01-05-2009, 07:50 AM
You can set a video file or a still image sequence as a backdrop inside Layout (this is found in the Compositing panel), then in the display options you can tell Layout to display the background inside its opengl preview.

You can also create 3d representations of any object inside the video that you want to recieve shadows and use Front Projection Mapping to have the objects appear to cast shadows onto the video.


01-05-2009, 10:00 AM
I converted my video file to .PNG still images. Then browsed to the .PNG location from the compositing feature inside lightwave. Pretty cool. I used GIF MOVIE gear to convert my video file to .PNG images. Is there a free one out there.

02-13-2009, 08:37 AM
Is there a free one out there.


:newtek: NewTek has also a Tool called "vidget" but I think it is no longer supported.

02-13-2009, 01:11 PM
Lightwave can do simple compositing. I use Vision (http://eyeonline.com/Web/EyeonWeb/Products/vision/vision.aspx). It's not free but me loves it. If you need your 3D elements to move in 3D space with video shot with a moving camera, look into SynthEyes (http://www.ssontech.com).

YouTube example (http://www.youtube.com/watch?v=IHoIDB2iTN4) of SynthEyes.

02-18-2009, 09:28 AM
I've been looking into this sort of stuff, and there's on thing I can't figure out, but I feel like the solution is staring me in the face.

If I want my 3d object to case light or shadows onto other things in the video, I need to make a 3d version of these objects, give them a front-projected mapping of the video, and position them in the right place.

Now, if I set my object to 100% luminosity, 0% diffuse, and turn off pixel blending on the texture, it matches perfectly with the background video.

BUT, at 100% luminosity and 0% diffuse, it won't pick up any light or shadow. I can manaully tune the diffuse and luminosity to help, but does to varying lights moving around the scene, there's no guaranteed way of getting my front-projected objects to match up with the backdrop.

Am I missing something?