Blender Archviz Tutorial: Blender Units & Scale | 3D Interior Visualization Course: 05 |

after watching this video you will know how to import an architectural drawing to blender and match its scale with blender units so everything you model in 3d has the correct sizes and proportions this video is part of my interior visualization course in blender which is available for free on my channel the videos are slow paced for all beginners to be able to follow them you can find a complete playlist with all the videos linked in the video description below if you want to access all of the project files and support what i do i share more information on that at the end of this video anyway my name is lach and welcome to my interior visualization course in blender [Music] in this video i'm gonna show you how the drawings we've created in the previous steps can be now imported into blender and the way is pretty simple we can just drag and drop the jpeg file directly into the 3d viewport but what you're gonna have is something like this so you can see there is a rotation and location of the object already applied depending on the camera angle we had so to reset that let's just select the image and press alt r so it zeros the rotation and alt g so it now zeros the location and the newly added image is now aligned perfectly to the scene center the newly imported image has some very basic properties so when we select it you can see the icon appearing here and for example we can change the transparency of the image so let's set it up to 0.75 and other than that the image behaves exactly as any other object so we can move it around by pressing the g key we can rotate it and we can also scale it so the question is how do we match the dimensions we have in the drawing to the dimensions and to the scale we have in blender first let's check what are the actual units we are using in blender so you can do this here under the scene icon and under the units tab here you can see the default system we are using is metric the unit scale is 1.0 and we have all the other dimensions here uh that doesn't tell us much yet but let's zoom in and see the dimensions we have the units we have on the drawing so you can see it's a centimeters and yeah now we need to somehow match those two together the way i always do that is simply adding a cube so you can see it's quite big in comparison to the drawing but since we have a metric system and the unit is set to 1 what that means is this little square we have in a 3d viewport each one of them has a one meter and that means our cube as you can see has two meters of length in every direction and that gives us some basic information to start with since we know the cube is two by two let's now see if we have any similar dimensions in the drawing i'm going to switch to the wireframe view and zoom in a little bit and you can see we have 2 50 in here so what we can actually do is scaling up the drawing a little bit now getting into the edit mode of the cube let's select the face here and by holding the ctrl key i can now precisely move this face into this direction and you can see the value in the left upper corner so i'm moving it by half meter here and i'm moving this side half meter here so what we have now is a cube well it's not a cube anymore as you can see but we know this object has centimeters here and here and let's move it into this area right now and let's try matching this corner with this corner of the drawing once we do that let's now enter the edit mode select this edge and by pressing shift s i'm gonna move a 3d cursor to this selection so let's now move cursor to the selected you can see the 3d cursor is now here i'm going to select the drawing now and by pressing the dot key i will choose the 3d cursor as a transformation orientation point so when i with my drawing selected when i press s right now you can see we are scaling the drawing but this point we just aligned stays untouched basically untouched so i can now very precisely basically um scale the drawing so this dimension matches my cube size and you can do this very precisely but yeah i would say having this level of precision is enough in my opinion so what we are ending up with right now is having a cube and like having a cube with 250 centimeters of uh dimensions here and also having the same dimension on the drawing that means we right now have matched the unit system we have in blender to the unit system we have on the drawing and we can we can double check that by deleting the cube and creating a completely new one so let's add a cube and let's try matching it into to the any other dimensions we have in the scene so let's say this opening here has 180 centimeters i'm just gonna move the cube align it to this line here now i'm gonna enter the edit mode select this face here and with control key pressed i just need to move my gizmo back with the control key pressed i'm going to move it by 20 centimeters and you can see it matches almost perfectly i would say perfectly to the method we are using so let's now uh try another object maybe um let's look for this area here 70 centimeters and yeah let's add a cube move it here now i'm entering the edit mode selecting this face and we have to move the space 130 centimeters to the right so with the control key pressed you can see in the left upper corner we have one meter now one point one two and three so yeah this means the drawing is now set up and we have everything ready to begin the actual work i will just select the drawing once again press shift s and center to the world origin no center to 3d cursor yes so now we have the drawing aligned perfectly in the blender and i will now add a section of the building and show you how to match it this is how the section of a building looks like and we need those kind of drawings in order to be fully able to recreate the building in 3d so you can see we have the floor heights here the general building height and a few other details i'm just gonna import it to blender the same way i did before with the floor plan so i'm dragging it and we have it here again i press alt r without alt g maybe and now i'm gonna rotate uh the drawing within the x axis by 90 degrees so how do we match those two drawings together right now um i'm just gonna scale it up a little bit so it's a bit more clear what's happening and to be fully clear what we are going to do let's just decrease the transparency yes so in my opinion well there are two two approaches first we could simply create another cube and try to match let's say this dimension of 210 centimeters which by the way i think it's a bit too too low and that actually leads me to another like to the second method i personally prefer to to use because very often when you're visualizing stuff for architects and designers the drawings you're receiving are i would say in 90 of the cases not the final designs meaning there might be some things mismatching in the drawings theoretically it should all match but in pract practice practically it very often doesn't uh from my experience at least so the way i'm doing it is trying to find the most important points of the geometry and then match those points together so in our case that would be this corner of a building and this one which we can see are here so it's this edge and this one i'm just gonna mark it by the annotation tool so just create a new layer with some color and yes so what i'm talking about is this edge we have here so it matches this corner and do not confuse it with this edge which is actually this uh surface here which is on runs on this angle here and the other corner point will be this one here and this wall we have here so what do we have to do is basically scaling this edge so it matches whoo this one and the way i'm gonna do it will be similar to how we matched uh the main floor plan so i will just create a cube i will hide this image just for now switch to the top view and simply align and modify the cube so it matches the length of the wall i will decrease its thickness just so it looks better and i'm gonna now simply drag it here as you can see i'm not using any precision tools because i think when you're doing visualizations it really doesn't matter if you perfectly snap this face to let's say this edge or to this edge or obviously if you're doing this kind of uh sloppiness then it matters but i think like on this atomic scale it really it's not visible uh in the final rendering so i'm just freely adjusting this wall now i'm gonna press alt h to unhide the drawing and i'm just gonna hide the floor plan so we have our section visible and this is the cube we have to align i mean the drawing has to be aligned to this cube i start aligning the plans by focusing the 3d cursor on this edge here so i press shift s cursor to selected then i switch to the side view go to the wireframe view and now i'm moving my section drawing so this little corner here matches the 3d cursor position so you can see it's almost perfect now with the background background drawing selected i'm gonna switch the transformation orientation to 3d cursor and just scale it up so it matches this edge matches this face from our geometry and that's basically it to be honest um let's unhide the floor plan and move the drawing a little bit to the front so as long as it's aligned to the geometry we've created and as long as the geometry is aligned to the floor plan that means we have everything set up so i can still maybe move this drawing to the level to the x axis so it looks a little bit better for some reason blender switches here like that i don't know why but anyway i think we are now set up and ready to go with the scene before we end this video i will still run a quick check just to see if the drawings are matched properly and if the scale is matching what we've just set up so i'm creating a just a cube another one i will delete this object since we don't need it anymore i will now go to the edit mode and press alt z for x-ray and i will just roughly scale down the cube move it to one of the stairs by selecting the faces i will just smash it yeah just scale it down like this now i will just duplicate it by shift d and press shift r to repeat the operation okay now i will select the first step center the 3d cursor over it switch to the 3d cursor here and now scale the stairs within the z-axis and scale them within the x axis like this so they match more or less what we have in the section let's now see if this actual creation matches the floor plan so well we can see it's maybe not exactly there but as i mentioned um usually there are some mismatches in the technical documentation we are receiving as 3d guys so you can see when i move it just a little bit to the right it matches almost perfectly and this little shift of the geometry between the section and the top view well it's it's not really that important for us but because then later in the visualization we will still adjust a lot of things around the 3d scene but that was just a quick test to demonstrate we have everything aligned and we can now move to creating the walls and building up the entire scene thank you guys for watching and if you want to support what i do or if you want to get access to all of the project files together with the interior scenes 2000 something a huge number of blender exclusive 3d models then check out the choco for subscription plans these are truly the best money can get you if you want to get better at blender that's it for this video and i see you in another one bye bye you

Channel: chocofur

Views: 5,939

Keywords: blender, blender 3d, blender guru, cg geek, tutorial, blender tutorial, blender interior, blender interior beginner, how to make, architecture, visualization, interior design, interior visualization, 3d interior visualization, interior visualization blender, interior visualization course, interior visualization secrets in blender, how to, free, archviz, 3d, cgi, blender architecture, blender architecture tutorial, blender scale, blender units, blender architecture scale

Id: eg1w4jRbZsE

Length: 18min 15sec (1095 seconds)

Published: Tue Sep 28 2021