Grasshopper Tutorial (Parametric Facade)

in this render grasshopper tutorial you can see that I have modeled this polymeric facade in grasshopper and this is really similar to the eg renovation which you can see here I have made this facade based on this model so what we want to do is to start from scratch let me just go to the shape so what I want to do I want to show you that I can easily model this in grasshopper you can see that I can change the height of this facade I can change the location of the point attractor right based on the height based on the location and we can also change the as you can see here the scaling and I have also defined a multiplication which you can define the number of panels you want on the facade so basically this tutorial will help you to model the parametric facade in grasshopper a triangular facade easily again for those who are new to our channel and you want to know what grasshopper is and how it works I'm going to put a playlist up here which you can watch and enter the grasshopper world so let's get started I'm going to start from scratch and as you can see I just draw a simple line in right now so let's just do this and we can just use the shift key to make this polyline and we're going to use the curve from The Palms menu with both vocals plugins so you can see this and set this to the curve okay so what we want to do is to extrude this in the z direction so we can go to X extrude and extrude this in the z direction and give this a number so maybe we want this well 56 and give this to the extrusion so you can see that we can control the extrusion and remember that we can always update this by moving the control points and changing the extrusion okay the next part is so if we go to the launch box plugin let me just open this you can see that we have a panel and we can make triangle panels B so let's just connect this and if I connect this to the extrude surface you can see it's going to show an error and it says that beta conversion failed from B rep to surface the problem here is that this poly surface is two surfaces so before we want to make those panels we have to go to the surface and deconstruct that poly surface and now we have two surfaces here okay so if we want to work with this first of all you can see that those triangle panels are up and down but for this facade you can see that it's an left or right so what we want to do is to change the direction and you can simply do that by going to the launch box plug-in utility and using this let me just zoom in reverse surface direction we have talked about this in several tutorials so what we want to do is reverse the surface direction of these and the reverse option is basically the three reverse UV okay so let's just give this up three and give this to the surface and now you can see that it's going to be left or right the next problem we have here is that the UV division is going to divide the surface for both of those surfaces to the same number so if I give this a number for five you can see that it's changing the U division for both of those surfaces okay so we can fix this problem by inspecting the length and the dimension of the surface and so I'm going to type dimension and find dimensions of the surface these numbers you can see that the U is basically one of the ways of the directions of the surface so you can see that this is 73 and that's 27 so we want to use these numbers to form our division assume that I just multiply that by 0.1 maybe it's saying that we want seventh division and two division right or three divisions so we can go to math and multiply that with a number smaller than one and if I give this to the U division you can see that this is dividing the U direction of this okay base of this number we're going to divide the same V division by the same multiplication so if I give this to the V division and remember you have to change this one of those multiplications will form a complete intersection of panels you can see that with this one we don't have a complete tessellation but with this one we have it so remember you have to change those numbers and produce a complete tessellation and you can see that the vision is something based on the U and the V division of the both surfaces and it's going to help you to use this technique to form the panels so the next part is to use a control point a point attractor which we have talked about this I'm going to put one of the tutorials up here which you can watch if you want to know more about attractors which I'm going to start now and if you want an advanced tutorial we have a complete section for attractors on our course you can check it in the description bar so what I want to do is to find the centroid of this or simply just type area which will find the area centroid of these panels and again what we want to do is to not fall in the group section of this and because we need a remap for now we're going to flatten all of the panels so they are in the same group so remember we have to flatten this because you can see that there are in two groups which is this surface and the surface here right here so we have two groups so if you don't know what flatten or graft is again I'm going to put another tutorial up here you can check out the tutorial which we talked about flatten graphed and simplify okay so now we want to move the point attractor on this edge so I want to go here and go to the curve section and use this point on curve tool this is a simple tool you can connect to a curve and if I just make this a bigger one you can see that we can move this from zero which is from the start of the curve to one which is the end of the curve okay so this is one of the parameters we want to use and then what we want to do is to move that in the z direction okay we know that the height of this is 50 right so we have this height for the Z direction what we want to do is to multiply that with a number between zero and one so that's we are saying that we want a percentage of the height so again I'm going to go to the multiplication and multiply that by number smaller than one and give this to the Z so you can see that we can move this from zero on the ground to the top so we can use these two parameters to define the location of the point attractor so here we have the point director and for those tutorials we have talked about the point attractor we have a grid of points we have a point attractor and what we used was a CP it talks about this again you can watch the tutorials for that tractor closest point not closest points remember we didn't use this one so closest point and we talked about this so I'm not going to explain it again and we connected the grid to the point and the attractors the cloud and that is because those points of the center are going to search for that tractor and near to that so you can also add multiple attractors here okay so after doing that let's just turn this off we can go to the launch box and use this panel frame to frame the panels okay this is going to be a little bit slow because paneling and producing the surfaces a little bit slow but in this example which I opened here I guess that we have to set this again to this curve just a quick tip you can also use scale if you want to make it fast so remember this is a really fast one because I'm scaling the curves and nothing else but for this tutorial which you can see I have used the panel frame really producing the surface let's just bake this one we are producing the surface and that's going to take a while so remember if you want to manage to change the location of the point attractor check it out see what is the best you can use the scale but for now we can use the panel frame we want the final results and you know that the scale factor is between zero and one that means a scale between zero and one so what we have to do is to remap this distance so we have the distance between these centers to this attractor point and now maybe it's maybe let's just go to the blue okay so maybe you can see it here I guess that we have two right okay so maybe this is 250 meters for the distance something I'm just giving you numbers okay we can't use this for scale so what we want to do is to scale this between 0 & 1 so we use the remap again you can download the remap tool from our website so what I want to do is to remap this you can always also download the remap from let's just type this for those who don't know apartment with 2d I'll come back to /pn and back a slash remap so you can always go to this address and download the remap so again we can just type 0.25 and number 4 the maximum that will scale those distances which you can see it's maybe 18 15 6 and 1 into this domain which we want to give this to the scale factor so this is now producing the scale let's just turn this off and connect the surface to the frame only so we can see the frame you can see that this point attractor is near we have 0.25 and far panels are 0.73 so what we want to do is also we can just reverse the minimum and the maximum and you can see that this point will just make this bigger and again you can move the location this is a little bit slow if I use the scale it was really fast and again I can change the height so remember that you have to understand what is as a geometry of fast producing geometry or a slow one so curves those fast surfaces especially for lofting surfaces are slow and now we can just bake this into layer 1 and bake the panels if we want to layer 2 and here we go we can just simply close that one and we have this facade which you can see we can just turn this off so you can see it let's just go to the render section so you can see these panels so this is the way you can use grasshopper to produce a parametric facade easily by using the Launch Box plug-in and you can see that it's going to make small if you to make something similar to this as you can see here we have a wave coming here and then it ends I guess you have to watch the tutorial for the point attractor from our course because we have talked about graphs or you can also watch the graph mapper tutorial which I will put up here for those who want to know more about graph mapper but for those who want to work with point and tracker we have a similar example to this in our course ok thank you for watching hit the like button comment below what do you think about this video was it easy was it hard your feedback is really appreciated and see you next time [Music] you [Music]

Channel: Rhino Grasshopper

Views: 46,350

Rating: 4.9542565 out of 5

Keywords: grasshopper tutorial, Parametric design, Architecture, tutorial, 3d modeling, grasshopper3d, parametric facade, parametric facade grasshopper, parametric facade design, facade pattern, architecture design, grasshopper, parametric design, architecture

Id: tSLULee59VY

Length: 13min 6sec (786 seconds)

Published: Sat Feb 02 2019