How to Scale and Measure in Zbrush (Beginner Tut)

what's going on everybody my name is ian i'm a freelance digital sculptor and toy maker and today i'm going to show you how you can set scale and measure fairly accurately in zbrush so let's do it so today we're going to be talking about scale and measurements and how to do that accurately within zbrush and it's fairly simple process so i'm going to go ahead and get into it first we're going to set the scaling and then we're going to go ahead and set the uh and then i'm going to show you how to actually measure once the scale is set what is important to note here is that scaling is actually subtool dependent meaning that you want to select a sub tool that is easy to understand what kind of scaling principle you have it'll make sense once i get into it so the first thing you want to do is actually pick a subtool that would make sense and for me it's always a cube so we're going to go ahead and go to insert and we're going to go ahead and pick a 3d cube now as you can see here that the cube is fairly large but what we want to do is kind of have an idea that this cube is a certain size and for me an inch works universally across the board and i usually use it in a metric system so 25.4 millimeter is usually what i tend to set my cubes to but as we're taking a look at this we can see here that the cube is about the same size as my job of the hut here well we don't want it that i at least want this to be about four inches tall so the very first thing we need to do is actually grab our gizmo and let's scale this down to a size that we are going to like and we're going to move it off to the side here just so you can see and what i do is i size this the cube first before setting the scale this way i already have an idea of what that's going to be so i have my cube here i'm going to go ahead and hit this little pin button right here which means that anytime i move my gizmo it's going to go ahead and snap back to that one location and i'm going to ctrl z that and the reason why i'm going to do this is actually i'm going to hold ctrl and drag a copy of this cube up and stack it fairly on top of each other but then when i let go that gizmo snaps back i'm going to press 1 a couple times until i have about four cubes here i'm going to go ahead and clear that mask uncheck that little pen and reset this gizmo to the center and i'm going to just go ahead and scale this up so that it is roughly about the same size as my jab of the hut here now you don't have to get super accurate unless you want to but this is a really good way to just kind of set yourself up for success from here we're going to go ahead and turn on the poly frames and i'm quickly going to go ahead and have a shortcut for this i'm going to go ahead and hit auto groups and then i'm going to select the one cube that i want and delete hidden so really i only use those other cubes to kind of get an idea of how tall this thing will be from here we now get a chance to actually set the scale so to do so what we're going to do is come up to z plug-in and we're going to go down to scale master and we're going to hit set set scene scale by doing this you're going to get a bunch of options i recommend choosing the millimeter and don't worry about what this says right now all you need to worry about is what measurement system you're going to be using for 3d printing and for most 3d programs the metric system is by far the most commonly used so we're going to go ahead and pick the millimeter one so we're going to pick 0.50 millimeters now that we have that we can go ahead and scale our cube to one inch so we're going to go back to z plug-in we're now going to take a look at these sliders right here and if we zoom in you can see that we have three axes that we can work off of we're going to go ahead and pick one of them doesn't really matter and we're going to type 25.4 and hit enter 25.4 millimeters is equal to one inch just in case you were wondering from here we're gonna go ahead and there's a button right here called resize sub tool we're gonna go ahead and click that now you're more likely gonna get this error message this error message is common and i just ignore it because it doesn't actually really affect anything but from here just go ahead and hit ok and we're going to watch our entire sub tool just rescale now that it is done we can see here that we have a cube and job of the hut and they look fairly identical but they are resized so now what we need to do is confirm that this cube is 25.4 millimeter and to do so we're just going to come up to z plugin hits set scene scale once more and now you can see that our options have changed and we have 25.4 millimeters right here so we can go ahead and click that and now our cube is set to that millimeter standard so now that we have the whole scene set what we could do is actually pull some measurements from our sub tools so that we can ensure that the model can either be a 3d printed or be moved over into another program that we may need to use those measurements later so because setting your scene scale is subtool dependent what we want to do is uh basically grab the sub tool we want to measure before using the measurement method of using transpose tool or even using a 3d print hub and i'll show you in a second so the way i recommend you measure a sub tool so that you can ensure that it is the size that you would like it to be what i recommend is you come and you grab that sub tool over here in the subtool palette come up to z plugin and come to 3d print hub from here we're going to go ahead and click update size ratios by doing so you'll be presented two options either inches over millimeters or millimeters over inches however you decided to set your standard in our cases millimeters stick with that it will save you a lot of problems uh in the long run if you choose to change this i recommend changing this in scale master but for tutorial purposes we're going to go ahead and keep it the same and also too not to confuse anybody but we'll keep it the same so we're looking at the millimeter option which is 152.08 by 102.45 by 89.74 millimeters now if you're confused by this this is just giving you the height the width and the depth or the x y and z axis measurements so that way we know we're going to go ahead and click the millimeter one and now we have our information the other way you can measure within zbrush after you've set your scene scale is using the transpose tool which is very powerful tool so what we could do is we can confirm our cube by selecting the cube by hitting alt tap or just coming this up tool method just clicking it and then we can hit w on the keyboard and if you have the gizmo just click y and that will change it to the transpose tool and if you hit y again it'll change it back and forth so we're going to click y until we have the transpose tool which is this little guy right here we're going to zoom all the way in on the cube we're going to do is we're going to click a point as we start to drag hold shift this will allow you to draw to drag a straight line i'm going to go to another point on that model and we're going to go ahead and let go and right up here at the top we zoom in it'll say 25.3989 millimeters so that's a fairly accurate reading within zbrush so that you can actually see that yep that's about 25.4 millimeters give or take that's an inch very very accurate and we can do this with every sub tool we can do this with the jab of the hut we can just we want to know how tall he is we can actually go ahead and zoom in grab our transpose drag hold shift bring it up to the top and you can see it dragged a straight line by holding shift and right up here at the top it tells us it's about 101.79 uh 67 millimeters so the only flaw with this transpose method is that it is dependent on how far you drag it out so you can overshoot or undershoot the model so just make sure that whatever you're measuring you can actually really get in there and get two clear points of measurement what i love to use this method for is wall thickness or making sure there's enough space in between my key cuts so like for example if i wanted to measure the wall thickness of his finger i can just come on in here drag hold shift get to the other side and his finger is about 2.2 millimeter thick so this will make sure that it's printable since you want a wall thickness of at least 0.2 millimeters so that's that's thick enough but that's how you can actually use the transpose tool to measure or if you want a overall measurement reading you can just come up here to 3d print hub and hit the update size ratio for the overall reading okay everybody that is it for today's video hopefully you guys enjoyed yourself hopefully it was informative and if it was please give it a like thumbs up don't forget to share also too if you guys do things a little bit different i would differently i would love to hear your thoughts on that so comment those down in the comment section down below and if you guys are interested in how i sculpted the job of the hut that was featured in today's video go ahead to my main channel and or click this link right here and that will take you to the time lapse i did it within three hours in a little sculpt off challenge over at spicer's dojo he's a great artist and i love hanging out with him and so it was fun to do that over on his discord so anyway guys that is it and i will talk to you all later have a great one bye

Channel: IR Sculpts

Views: 26,140

Keywords: 3D printing, zbrush, live stream, sculpting, digital art, character design, twitch tv, pixologic, toys, collectibles, graphic design, clay sculpting, measuring, set scale, scaling, zbrush tutorials, how to, ask zbrush

Id: 3PsCYYrujAE

Length: 9min 29sec (569 seconds)

Published: Tue Feb 02 2021