camera match

[render54]

Hi.
there are other discussions about room match but do not solve my problem
I ran a match room following a video tutorial and here nothing special
My problem is that the photo inserted fits the perspective window by deforming
while in the video tutorial it doesn't seem to me to do it, on the contrary magnifying the perspective window
a space below appears, a sign that photography maintains its proportions
while in my window perspective stretching or raising contours the photo always fits
being deformed.
3ds design is the 2012 version
I don't have much familiarity with 3ds but it seems that there are no commands to block the proportion of the photo

ps. :
solved, I had escaped a button in the charging phase of the image
or where is it?
Thank you.

 

[lattu]

you have to go to the background settings (in the display menu), and choose bitmap proportions.
or impose the output of the rendering equal to the size of the image and then choose proportions render

 

[render54]

you have to go to the background settings (in the display menu), and choose bitmap proportions.
or impose the output of the rendering equal to the size of the image and then choose proportions render

Thank you

as written in the ps. in the meantime that I wrote I reopened 3ds and the video and I realized that in the stage of insertion I had always escaped a button to activate, perhaps because in the video of tutorial it used 3ds in dark gray windows mode, activated that button, the image was inserted in blocked proportions
♪