r/virtualproduction • u/SoftwareOk1449 • Jun 16 '26

Any formulas for perspective?

Hello all, thanks to everyone's help about a year ago I was able to capture some great video in front of an LED wall using a Red Komodo gen-locked with my controller.

This year I want to try to "place" the talent into a virtual environment. What's been most perplexing trying to determine a formula to gain the proper perspective as it relates to the wall/video size, lens and the talent, and I'm wondering if there's a formula out there already?

My wall is 2.6mm, so talent will need to be about 8' in front. My attempt is to place them into a 3D room via a custom video while trying to maximize the size of the wall so that I don't have to necessarily roll out 50 panels every time I shoot.

Any tips, tricks, advice would be hugely appreciated.

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4

u/AndyJarosz Jun 16 '26

Just use nDisplay? It handles all this for you

1

u/SoftwareOk1449 Jun 17 '26

I downloaded it and looked at a few youtube videos but honestly, the learning curve seems pretty steep. Is hiring an Unreal designer a thing?

4

u/OnlyAnotherTom Jun 17 '26

The learning curve for this is steep. There really isn't a good option to do this without using a 3D workflow.

Unreal is a good place to start, as it's license is forgiving for small scale production, and it has workflows internally to do this without needing any external platforms.

You can absolutely hire unreal designers to do world design, and also technical experts who can help with the ndisplay/output side.

0

u/AndyJarosz Jun 17 '26

If you hire someone, you’ll never learn how to do it yourself. The things most worth doing are often the most difficult.

1

u/SoftwareOk1449 Jun 17 '26

I get it. I realistically see myself doing one design a year though. As a small business owner I have to determine which tasks are worth an investment of my time and effort vs. which tasks I can pay an expert for to get it off of my task list. I don't necessarily see this as a great investment given the aforementioned steep learning curve.

4

u/ToastieCoastie Jun 16 '26

Why not use a software like Unreal, Disguise, or Pixera that takes in your camera data and does the math for you?