Try the following:
|povray +i tf_land.pov|
where tf_land.pov is the file distributed in the terraform root directory. If you get the following type of error:
|tf_land.pov:26: error: Error opening TGA image.|
where tf_land.pov is the file distributed in the terraform you're OK in the sense that POV can find it's include files (tf_land.pov is a template file which has to be processed to render). If you get an error about "colors.inc" your POV can't find it's include files and you need to go fix your povrayrc.
If this fails, check to see if your executable is named povray-x; some distributions use this naming scheme to distinguish between the X and SVGA povray executables. If this applies to your situation, you should use the --pov_exec povray-x flag to specify what your povray executable is called.