Exporting Ambient Occlusion

You can include Ambient Occlusion in an exported image.  However when exporting an image from a view with Ambient Occlusion enabled there is a threshold related to the pixel size of the export and whether or not the effect can be included.  Typically once you go above 2000-2100 pixels in the horizontal direction the effect will be excluded.

For example; you have a monitor resolution of 1600 X 1200.  You are exporting a shaded view with Ambient Occlusion enabled, at 300 DPI, to a TIFF image.  If you keep the R > Export > Images > Images and Animations > Image > Image Size, around 2000 pixels, Ambient Occlusion should be included.

 

Go above +/- 2050 pixels [which can vary based on your monitor resolution] the effect should be excluded from the image export.  I have included 2 comparison images below:

2000 Pixels

 

2050 Pixels