I would even say you dont need to 3D match move the person at all, just animate the emiter position if your particles will only appear behind the person's hand/body, since u can just cover the particles with your character keyed layer, I would only see 3d match-move necessary if the particles need to be in front and behind the layer, so there would be necessary some 3d occlusion of the particles, but since you know more in detail how 3d particles will behave u can chose the best course :)
On Fri, Mar 25, 2016 at 11:30 AM, Nuno Conceicao < [email protected]> wrote: > Hi > If the camera is locked, there is no point of having marks on the green > screen, since they will just get in the way of the color key. > According to my somehow limited tracking experience, using software like > pftrack or others, to track people, or any other moving animal, usually > there is no need for markers, unless u are going to do facial tracking and > I think in your case you just need a rough 3d character to roto animate > for particle emission and occlusion, it doesn't need to be perfect, so in > fact u dont need to software track anything at all , it will have to be > tracked manually (by eye) so no trackers anywhere will be needed! > If its not very long and doesn't need to be an absolute perfect match, it > shouldn't be too hard! > > Just my two cents! > > Cheers > N. > > > On Fri, Mar 25, 2016 at 9:17 AM, David Saber <[email protected]> wrote: > >> Hello! >> >> I am asked a job I've never done before: matching 3D FX and video. >> The scene is : the camera is a bit behind a painter who paints on a >> canvas on a wall. As she paints, particles are emitted from her arms and >> then move on the canvas. The camera won't be moving (as far as I know). >> So we have to separate the video of the painter, the canvas, and I have >> to create FX that will be composited between these 2 video layers. For >> the video shooting, we will use a green screen. >> I'll have to recreate a 3 model of the painter and animate it according >> to the video. Also I have to re-create in 3D the room and the wall she's >> painting on. >> >> So my questions : >> - Is it better to have some marks on the green screen and the painter's >> cloths in order to better match the 3d animation? >> - If there are marks on the painter's cloth, is it a long process to >> remove them with a video editing app? >> - Do you know a good web link to learn that? >> >> Thanks ! And see you soon, >> Have a great weekend! >> David >> ------ >> Softimage Mailing List. >> To unsubscribe, send a mail to [email protected] >> with "unsubscribe" in the subject, and reply to confirm. >> > >
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