Setting your zoom to match print

[Micmac]

Hi there

On an iMac the screen dpi is 109

If I set my zoom to 109 / 72 = 152% I get an exact match between what I see on screen and that which come out of the printer.

It can be useful when you are determining your linesizes.

Mic

[Enug]

My screen resolution is 1920x1080x23" = 95.78 ( http://pxcalc.com/ )

So it would be 96/72 = 133%

What if I wanted it at 300ppi ?

I get confused with dpi and ppi - dpi I think refers to the printer ?

[HannahRage]

My screen resolution is 1920x1080x23" = 95.78 ( http://pxcalc.com/ )

So it would be 96/72 = 133%

What if I wanted it at 300ppi ?

I get confused with dpi and ppi - dpi I think refers to the printer ?

Dots per inch and Pixels per inch are basically the same thing (or you're aiming for them to be). Each ink dot sould be a screen pixel. There's no harm/point in having more (higher) pixels, because there's only going to be one dot, but if you have fewer pixels per inch, that's the level it starts showing up at (ugh. DPI is one of those things that makes perfect sense in one's head, but turns to spaghetti as soon as you try and put it into words. Like printing with the wrong DPI )

MicMac's trick is letting you match the onscreen pixels to the printed dots.

[markw]

Hi June
72ppi is AR's default canvas ppi. To find the zoom % needed for viewing a canvas set to 300ppi, 1:1 you just need to do the same calculation again but use the ppi that you have set for the canvas instead of 72.

@micmac
Neat trick that, thanks for the tip.

[Enug]

Well, I'm still sort of confused.

I thought Mic's idea was to show the AR canvas as it would appear printed - i.e. showing canvas texture.

Using a ppi of 300 I did the same calculation and 32% was the answer I was given. Now applying this to a new canvas - 2667x2000px with a particular texture - viewing this at a zoom of 32% I can't see the texture at all. I have to increase the zoom to 120%+ to see the texture of the canvas.

Perhaps I have the wrong end of the stick and that's not what MicMac's post was saying at all.

[markw]

Well perhaps some confusion may have crept in here but not to worry!
What Micmac's formula allows, is for you to see on screen your canvas 1:1, life size as it would be in the real world.
So for example June if you set up an A4 canvas @300ppi (I suggest you make it "landscape" i.e. wider than it is high, so it fits nicely within your monitor) and set your zoom level to 32%. You should now be able to hold a real A4 sheet of paper over AR's canvas on screen and have them pretty much matched in size.
For me on my laptop screen I need to set AR's zoom level to 43% to get a real life size on screen.
The canvas texture may or may not be visible after doing Micmac's calculation. That will depend on what canvas settings you have for Grain, Roughness, etc… I'm finding that most textures when loaded need to be tweaked to taste.