Matching up perspective to background image

Question

I'm trying to match up the perspective of a camera to a background image. The purpose is to render furniture to composite into the image. Does anyone know of a good way to line up the plane so it the same perspective as the floor? I've already set the blender camera to be the same focal length. I know if I mess with the position and angle long enough I will get it but any ideas on how to speed up the process up would be much appreciated.

-Thanks

Blender File if you'd like to try it yourself

Please pack the textures into your .blend file and then post it again (https://blender.stackexchange.com/questions/39257/packing-texture-files-in-a-single-blend-file). — Paul Gonet, Nov 16 '17 at 01:12
Possible duplicate of How do I align my grid to background footage? — , Nov 16 '17 at 05:40
See also https://blender.stackexchange.com/questions/33625/still-frame-camera-solve/33628#33628 — , Nov 16 '17 at 05:41
There's an add-on called BLAM that helps to do what you want — Neil, Nov 16 '17 at 08:25

score 1 · Answer 1 · answered Nov 16 '17 at 05:24

The reason you're having trouble is that your photo camera wasn't straight. I can tell because the far corner isn't perfectly vertical. It's VERY easy to fix this particular image:

go to the Camera view
Hit 'R' (Rotate)
Type -4.2

Pretty darn close when you move it back to the corner. You can tweak it a little either direction to make it more exact. Caveat is that I had to guess a bit because that gray floor was in the way since I just downloaded your example image.

Matching up perspective to background image

1 Answers1