How to measure and divide a line or plane in PS?

[Azat1]

Hello,

I am trying to learn perspective by doing exercises in PS to save paper and take advantage of the quicker workflow, but I am hitting a solid wall when it comes to figuring out how to measure and divide in PS. For example, if I was to draw a cube using pen and paper, and then subdivide the cube so that it had 9 faces on every plane, like a Rubiks cube, I could simply take out my ruler and divide my first line into 3 equal sections and have them converge towards the VP. From there I would just use basic techniques, like those in How to Draw from Scott Robertson, to multiply and divide until I got my desired result.

Essentially I am just looking for a ruler tool to measure my lines so I can divide them evenly and construct the underlay for my drawings and paintings. Is there any such feature in PS? To better illustrate my problem I made a simple image, please see below. Thanks for your time, and please excuse my sloppy writing in the image.

[jane-e]

Hi

Personally, I would do it in Illustrator by creating a blend and then expanding it to make paths, followed by converting the paths to ruling guides with Cmd+5 and finally locking them.

Several folks here use Lazy Nezumi, which is Windows only and you can get a trial for 15 days. I'll tag @Trevor.Dennis who can tell you if it will do what you are trying to do.

https://lazynezumi.com/

~ Jane

[Azat1]

Interesting, I may have to give Lazy Nezumi a go. I'm a bit surprised that PS doesn't have something similar built in with respect to measurement and guides. I know PS is used primarily for photo manipulation, but with so many professional digital artists using it as their primary software, I had hoped that Adobe would have expanded on their capabilities. Guess you can't have it all. Thanks for the heads up though!

[davescm]

You could run the vanishing point filter which can then render its grids onto a Photoshop layer.

Dave

[jane-e]

That's a great idea if it has to be done in Photoshop, Dave!

Another reason I like the Illustrator method is that you can use the Scale tool and drag along those guides to scale in perspective.

@Azat1 

As you said, PS at its core is an image editor with some other capabilities. Illustrator is a drawing application. In recent years, though, Photoshop has been "borowing" more and more of Illustrator's features. You can make a feature request to the product developers by starting a post and clicking "Ideas" instead of "Discussion". Or any moderator can move this to the Ideas section for you if you ask us to.

~ Jane

[Azat1]

Thanks Dave, just tried it out now, and it's probably gonna take some time to get used to but I can see how it can get the job done.

@jane-e 

Yes, please move this to the ideas section if possible. Thank you for your help.