Hey all,
Haven’t used V4 in years and I’m glad to see a different kind of interface. I’m starting my own in house projection mapping project and I’m a little stuck. I’m not doing it all in V4 so maybe this isn’t the best place to ask, but there seem to be experts here that I can’t find in other places.
My model is just a fictional cityscape with 3 skyscrapers in it. I’m using a short throw projector that is about 2ft from the surface of the shapes.
I outlined the shapes in illustrator through the lens of the projector so I know exactly what everything looks like through the lens.
I brought all of that into cinema 4d and made a model of the model. It looks fine on the screen, but when it’s projected the perspective is off, unless I look from behind the projector.
My 3d skills aren’t the best so I’m trying to wrap my head around what I need to do to fix or adjust the perspective, coming from the 3d geometry how to project on 3d geometry article. There is the concept of the spectator camera and the projector camera that I don’t quite understand.
Do I render an output from C4d from the spectator’s viewpoint and then use the camera mapping technique to make it look correct from the projector’s perspective? It just seems like it wouldn’t line up correctly. Is there a limit to how far away the spectator could be…and how much depth I can fake?
Could someone just put that concept in other words for me…I think the language in the 3d geometry article is what is confusing me…I would appreciate it! I can add pictures