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Setting up a Background Image

By Matt Sibley
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Date Added: 9th December 2009
Software used:
3ds Max, Photoshop

Once again adjust the top or bottom guide to snap to the edge of the selection that is furthest away from the middle guide.

The Photo now has the horizon/eye level set right in the middle of the image.

Finally all that is left to do in Photoshop is to crop the whole image to the top and bottom guides and the edges of the photo. It is also worthwhile typing in the image dimensions somewhere on the image for later reference. And save the file.

Fig 5: Cropping the image to size (with image size in bottom corner)

1089_tid_fig05.jpg
Fig. 05

Part 2: setting up the scene

Now comes the straight forward bit, open up a new scene and create a "Target Camera" and position it at 0,0,0 so that it is dead centre of the 3D space

Open up the viewport configuration window (Alt+B) and set the "Background Source File" to your newly saved image and use the settings shown.

Fig 6-7: Viewport and render settings

1089_tid_fig06.jpg
Fig. 06

1089_tid_fig07.jpg
Fig. 07

Open the render settings window (F10) and set the output size of the render to the same size as your background image (remember you typed the image dimensions on to your image for reference). And select "Show safe frame" from the viewport drop down menu.

1089_tid_fig08.jpg
Fig. 8

And that's it your background image and scene is all set so that the camera is the same height as the camera was when the photo was taken and is now ready for use, simply import your model/models into the scene and move into position

You don't need to move/adjust the camera, as that is set up as already. The only things you may need to adjust is the vertical positioning of the cameras target (for cases where you have a 3 point perspective) or the positioning of the model itself into the correct place.

Fig 9-11: a simple box in the 3d max scene rendered with a matte shadow plane underneath, any object/scene can be easily imported in and will be aligned to the background

1089_tid_fig09.jpg
Fig. 09


1089_tid_fig10.jpg
Fig. 10

1089_tid_fig11.jpg
Fig. 11




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(ID: 85429, pid: 0) Gambuto on Fri, 10 February 2012 12:34am
TY very much for your effort, nice tut!
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