issue with tee command and a script

Question

im trying to use tee command with rendercheck tests on ubuntu 15.04, tee command works fine with 6 tests of rendercheck for example :

 ./rendercheck -t fill,dcoords,scoords,mcoords,tscoords,tmcoords | tee summary

but if i added other more , example :

 ./rendercheck -t fill,dcoords,scoords,mcoords,tscoords,tmcoords,composite | tee summary

the output does not shows in terminal and the file summary does not contain nothing, so im not sure why i have this behavior with tee command, it would be great if someone can help me, thanks

Answer 1

"composite" test opens a graphic window, doesn't display text to standard output.

I guess you'll obtain the same behavior if you just execute:

rendercheck composite | tee summary

Regards