Changing the canvas size and everything in the scene accordingly

[Lord_Lethris]

Does anyone know a way (be it native or plugin) where you can change the canvas size, and then everything in the scene will scale accordingly?
I do know that I can group the scene objects then scale all at once, however I have already used groups in scenes and you cannot group a group of groups :)

Justification for such a feature would be if I was to get better hardware, or if I wanted to tweek the existing setup in relation to a specifically demanding game (for example) - I could tweak the canvas size (not just the output size) to better optimize the decoding/encoding, thus less work for the GUP/CPU and Streaming platform, and the scene will rescale accordingly.

Thanks in advance xx

 

[Paul G]

If this would help me "rescale" all my scene resolutions to 1280x720 so I don't have to make OBS do it for me from 1920x1080 I would love to see it too!

 

[FerretBomb]

This is literally what the Output Scale is for.

The color conversion/scaling/compositing steps are entirely trivial as far as GPU load is concerned, so long as the sources can transfer their textures into VRAM on-time (looking at you, slow browser sources due to StreamElements and other cloud-based overlay management services!).
The 'heavy' step is the encoding. Which is post-render and post-downscale.

The only thing that maintaining relative positions on a larger canvas would do is make properly-sized assets look small, and make it so nothing lines up properly, meaning you have to re-position everything by hand anyway. And if your sources are already large and being scaled down inside OBS, you're doing the SAME THING as the output rescale, but a bunch of times individually instead of just once after composition and rendering is complete.

 

[Paul G]

This is literally what the Output Scale is for.

WOW Thanks! You saved me from rescaling everything in 16 scenes based on the assumption that having the canvas and output the same size would solve the problem.
The video is slightly slower than the audio while live streaming.
Sources don't include Browsers or Games. Most times it's 1 Camera - 2 media files - up to 3 images - 1 ASIO Audio input
I guess I'll have to adjust the audio down to match. Time to set up a Private "Testing Page" on Facebook.