Perspective Plotter: Use a Reference Distance to Increase Accuracy

[@ChippWalters]

Most helpful! Great addon :-)

[@leodegrance5609]

For larger objects, like buildings, I found using Google Maps measurement tool useful to determine the length of a building in a picture I recently took and used as a reference image.

[@lzandman]

As a former FSpy user I was very puzzled about the first part of this video. Why mess with the default cube, when all I was looking for was a line along one of the axis that I could resize to meet my reference? Then at 2:25 it's finally made clear it works exactly the same as in Fspy. It turned out I wasn't able to see the blue line, because of my particular background image. In general I think the plotting lines and their endings are too difficult to see. Turning down the opacity of the background image helps.

[@Configurate]

Hello Leon, what we can do is change the default opacity settings in the next version: You may have done this already, but you can change the opacity settings in the Edit->Preferences->Addons menu in Blender.

[@kewk]

Brilliant, thanks!

[@n0b0dy_know]

It's amazing!, thanks for your help :D

[@jeremydelastreet]

Clear and efficient

[@theartofratachard9111]

When it comes to 3 point perspective plotting, I find it pretty difficult to straighten the z axis line. If you can include that feature in the very next update, it would be perfect 👍👍👍✨️✨️✨️

[@Configurate]

It is added to the list, thank you for the suggestion!

[@marjolein_pas]

Thank you very much

[@veiss8801]

This helps a lot, but I often find that my global axis comes out upside down after plotting. Is there a quick way to flip it or am I doing the perspective lines wrong?

[@Configurate]

Hi there if you change the axis settings on ‘Vanishing Point 1’ and ‘Vanishing Point 2’ this will flip the orientation of your camera. You may need to try a few combinations to get it pointing in the right direction. Let me know if that works!

[@PedroFilms]

maybe one day Ill remember all these steps...

[@Configurate]

Send an email to [e-mail] and I'm very happy to take suggestions for speeding up the workflow or answering any questions!

[@tomasm1233]

Thanks!

[@drinnerd8532]

I'm sorry but I'm confused. I've never done this sort of work before in Blender, so I'm not understanding the whole system of scale and measurements. Why did you set the scale of your cube to .7? What is the scaling of your Blender scene set to? I mean, is that referring to inches or feet? How does Blender know? I'm so confused ...

[@Configurate]

Blender can be *very* confusing! Sorry the explanation is not clear. Blender is set to meters by default, which you can change if you go to the Scene Properties panel on the right hand side (the little tab with the cone & sphere icon). There is a section called Units which you can expand and change if you need. In the video, the cube is changed to 0.7 because the height of the table is 0.7 meters (or 70 cm), and as a demonstration we are showing how you can match the cube to the table in the image. Get in touch via [e-mail] and I'm happy to answer any further questions about Blender or the add-on.

[@Vale-jg1zm]

would the steps be the same for a scene with 1 or 2 point perspectives?

[@Configurate]

Hello yes it should be but let us know if you have any issues with it by contacting [e-mail]

[@mucutecto]

but for 1 point perspective this does not work. why? could you do a video

[@Configurate]

Hello Juan: Reference Distances should work for 1 point perspective. Get in touch via [e-mail] and I can look at your specific case.

[@murdocklesban6836]

mucho confundes amiga

[@Configurate]

Disculpas, puedes enviar un correo electrónico a [e-mail] e intentaré ayudarte.