Blender 2.8 Cycles How to hide hdri background but keep lighting and reflections

In this blender (2.8) tutorial we go over how to hide a hdri background so that it is invisible in the render (while keeping the lighting and the reflections) in cycles render. An hdri can be thought of as a spherical background image that used for lighting and reflection information.

Step 1:
Have an hdri or any environment setup in the world output surface

Step 2:
Go to the render tab and go to "Film"

Step 3:
Click the transparency checkbox

[drinnerd]

Short, sweet and to the POINT! You rock, CGMatter!

[lars-kastrulrich]

-Download HDRI map
-Use it in project
-Met the problem, looking for the tutorial
-Open video and see the same HDRI map)
(HDRIHeaven our everything)

[Hubwood]

Coming herer every few weeks cause my brain can't store it.
Delighted every time! Thanks :D

[qupation]

Oh man. I love how short and to the point this is. Thank you!

[chromel]

I basically had this problem but in reverse where my hdri wasnt showing and i followed this to make it show again, thanks for helping me unsolve the problem in this video.

[osebenson]

very direct and straight to the point. Great work.

[arcideas]

actually i was seeking for that for long time.
thank you so much

[TheArtOfLego.]

This Helped Me SO Much. Keep Up The Good Work!

[alessiodibella]

I wouldn't have believed it would be that simple. Thank you!
Also, it works on Eevee too

[MJ-lifo]

Thank you! But when I switch to transparent, I get the checkerboard thing in my actual viewport.

Edit: Figured it out. Preferences > Themes > User Interface > Transparent Checkerboard. Then changed the darker gray to the same value as the lighter gray. Maybe there's a better way but that at least was a workaround.

[vidarvaggen]

Short and direct to the point. Thanks!

[murraykeir]

This is how tutorials are done, thanks!

[Satabol]

You help me find transparency background image hdri. It was a clue to my problem. Thank you.

[PolyMadd]

OMG this is so easy... and I've got to go through troubles to find this.

[Nortic]

Perfect, just what was needed! Thankyou, sir!

[flackok]

THANKS omg, i was stuck with the background. not anymore cuz of you. thx again

[midnightpizzagoblin]

thank you! I'll never understand why Blender hide these things away in sub sub sub menus... surely there's a better way of presenting that option. Like why would a user think to look in "film"?

[AlienMadeus]

Thank you very much videos like this make life simple.

[sergkinder]

What do I do if I want to add another background, but keep the lighting and render with the other background but not have the hdri show up?

[Hemilgørn]

And in this case, how to leave a dark background to remove the chessboard?