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Adding 3d floor to a real photo
Ok so im wondering how i would go about adding a carpet to a cement floor in a photo i have. I am having trouble lining up the plane with the floor in the picture. Also im confused on how i should add this to the picture. Do i set the picture to a background layer or what? I am completely new to cinema 4d. If there are any tutorials you could point me too that would be great. The room has multiple windows so im guessing to get realistic lighting i would need to make the walls into invisible polygons that affect the lighting etc. Please if you could help me out that would be great.
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3 Replies
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I would do the carpet by placing the texture on a plane primitive of the same demensions (actually length:width ratio) as the actual carpet. Place the pic of the room in the color channel of a material and place the material on a background object.
It would help if you had the camera information for the room photo — specifically the lens focal length. If you have that then you can create a camera and set it to the same focal length. Otherwise you’ll just have to eye it out. Then it’s just a matter of moving the camera around until it looks right. If it’s an area rug you might start by creating a plane and lining the camera up so the plane covers the floor as closely as possible. Then put the carpet plane on top of that.
If you want to do the walls you can work it the same way, but I think that I would just try to fake it using square spots. If you decide to creat the walls then you can give them compositing tags and uncheck “seen by camera”. That way they won’t show up in the render but they will still cast shadows.
FWIW, forum leader Arndt sells a plugin that makes this kind of thing much easier and more precise.
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Thanks man. Ill try that. I also found a plugin called Photomatch. I don’t know if thats what you were referring to but it should be able to do the job nicely.
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Yep, that’s the plugin I was talking about.
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