CoDEmanX wrote:

Ok, to make it easier, right-click the following link and save as... space_view3d_background_images_rescale.py then go to Blender, File > User Preferences Addons tab Install Addon button (or Install from file...) Select the py script you downloaded Enable the addon by ticking the little box to the right of the addon entry

Okay, I've added it. Now how do I use it lol?

well, you set a factor and click the rescale button:



100 means 100 pixels of the image will be scaled to the size of 1 blender unit.

If you got two images, 800x300 and 300x400, they will get different scale factors.

800x300: 800 / 100 / 2 = scale of 4
300x400: 300 / 100 / 2 = scale of 1.5

4 / 1.5 = ~2.67
800 / 300 = ~ 2.67

you will get a correct pixel proportion
_________________
I'm sitting, waiting, wishing, building Blender in superstition...

CoDEmanX wrote:

well, you set a factor and click the rescale button: 100 means 100 pixels of the image will be scaled to the size of 1 blender unit. If you got two images, 800x300 and 300x400, they will get different scale factors. 800x300: 800 / 100 / 2 = scale of 4 300x400: 300 / 100 / 2 = scale of 1.5 4 / 1.5 = ~2.67 800 / 300 = ~ 2.67 you will get a correct pixel proportion

I think it worked !

so using this even if I have one picture of say 1000x500 from the front view and other of 500x250 from back view, I can scale them so they look same size in blender.

And how do you set the units to like meters and feet ?

i didn't care about unit system yet, tell what you need

Blender uses units by default, you can set it to meter which will change nothing, only imperial will make everything ~3.28 times larger
_________________
I'm sitting, waiting, wishing, building Blender in superstition...

CoDEmanX wrote:

i didn't care about unit system yet, tell what you need Blender uses units by default, you can set it to meter which will change nothing, only imperial will make everything ~3.28 times larger

very sorry, I was a bit confused...I've figured out how the units system works...

thanks.