ORIGAMI SIMULATOR This app allows you to simulate how any origami crease pattern will fold. It may look a little different from what you typically think of as "origami" - rather than folding paper in a set of sequential steps, this simulation attempts to fold every crease simultaneously. It does this by iteratively solving for small displacements in the geometry of an initially flat sheet due to forces exerted by creases. You can read more about it in our paper: Fast, Interactive Origami Simulation using GPU Computation by Amanda Ghassaei, Erik Demaine, and Neil Gershenfeld (7OSME) All simulation methods were written from scratch and are executed in parallel in several GPU fragment shaders for fast performance. The solver extends work from the following sources: Origami Folding: A Structural Engineering Approach by Mark Schenk and Simon D. Guest Freeform Variations of Origami by Tomohiro Tachi This app also uses the methods described in Simple Simulation of Curved Folds Based on Ruling-aware Triangulation to import curved crease patterns and pre-process them in a way that realistically simulates the bending between the creases.
Best Free Online Origami Simulator To Learn Origami Step By Step
ANIMATION SETTINGS The dynamic simulation is calculated by solving for all the forces in the system, moving time forward in small Δt steps, and updating the vertices of the origami incrementally. The time step size for this animation is calculated automatically based on the material stiffnesses set in the Simulation Settings section: more stiff settings require shorter time steps to solve and will slow down the simulation. Num simulation steps per frame allows you to control the number of tiny time steps forward to take on each render cycle. If the simulation looks choppy to you, you might consider lowering this setting. Lowering the number of steps per frame will slow down the simulation, but will result in a more smooth animation.
SIMULATION SETTINGS This app uses a compliant dynamic simulation method to solve for the geometry of an origami pattern at a given fold angle. The simulation sets up several types of constraints: distance constraints prevent the sheet from stretching or compressing, face constraints prevent the sheet from shearing, and angular constraints fold or flatten the sheet. Each of these constraints is weighted by a stiffness - the stiffer the constraint, the better it is enforced in the simulation. Axial Stiffness is the stiffness of the distance constraints. Increasing axial stiffness will decrease the stretching/compression (strain) in the simulation, but it will also slow down the solver. Face Stiffness is the stiffness of the face constraints, which help the axial constraints prevent deformation of the sheet's surface between the creases. Fold and facet stiffnesses correspond to two types of angular constraints. Fold Stiffness is the stiffness of the mountain and valley creases in the origami pattern. Facet Stiffness is the stiffness of the triangulated faces between creases in the pattern. Increasing facet stiffness causes the faces between creases to stay very flat as the origami is folded. As facet stiffness becomes very high, this simulation approaches a rigid origami simulation, and models the behavior of a rigid material (such as metal) when folded. Internally, constraint stiffnesses are scaled by the length of the edge associated with that constraint to determine its geometric stiffness. For Axial constaints, stiffness is divided by length and for angular constraints, stiffness is multiplied by length. Since this is a dynamic simulation, vertices of the origami move with some notion of acceleration and velocity. In order to keep the system stable and help it converge to a static solution, damping is applied to slow the motion of the vertices. The Damping slider allows you to control the amount of damping present in the simulation. Decreasing damping makes the simulation more "springy". It may be useful to temporarily turn down damping to help the simulation more quickly converge towards its static solution - especially for patterns that take a long time to curl. A Numerical Integration technique is used to integrate acceleration into velocity and position for each time step of the simulation. Different integration techniques have different associated computational cost, error, and stability. This app allows you to choose between two different integration techniques: Euler Integration is the simplest type of numerical integration (first order) with large associated error, and Verlet Integration is a second order integration technique with lower error and better stability than Euler.
In this article, we will checkout 2 best free Origami Simulator software for Windows. These software let you simulate different types of origami to help you learn origami step by step. The best thing about these software is that you get pre-loaded origami designs. So, you do not need to bother about loading any kind of external file(s).
After opening an origami file, these software let you simulate the folding pattern of origami. You can view step by step how an origami folds. You can also rotate an origami freely to exactly see how a model is being developed.
(adsbygoogle = window.adsbygoogle []).push(); Origami Editor 3D is an open source origami simulator software for Windows. It is basically an origami editor, which you can use to simulate origami. Although you can create or edit origami files here, we will not be talking about that in this article. We will focus on origami simulation.
There are many pre-loaded origami files in this software. Just go to Files menu, then click on Example Figures. Here, you will find more than 30 origami figures that you can simulate. Click on any origami to load it on the interface. As you can see, the interface has two windows. One window gives the 3D view, while the other shows crease pattern of origami. Notice the slider at the bottom of the interface? That is available there for simulation. Move it towards right and you will notice the paper in 3D window being folded step by step. In the 3D window, you can drag and rotate the 3D origami to closely view how it is being formed.
Freeform Origami is another free origami simulator software. It also has pre-loaded origami files, but they are in limited number as compared to Origami Editor 3D. You will find 14 origami files here. The supported file formats in this software are DXF and OBJ. Unlike the above mentioned software, you cannot create or edit origami files here.
To simulate the origami, go to Fold/Unfold menu and select Fold option. To fold and unfold, hotkeys have been assigned as well. You can rotate and view the 3D model freely by dragging it using the right click of the mouse.
You will find simulations for some of the most famous origami, such as: Bird, Crane, Hypar, Train, etc. Along with origami, you also get simulation for Tesselations, Kirigami, Popups, Maze Foldings, etc. Let us checkout this origami simulator to learn origami online in details.
(adsbygoogle = window.adsbygoogle []).push(); How To Learn Origami Using This Origami SimulatorThis online origami simulator is pretty easy to use. You will get how to use it as you open the website. Well, let us begin with loading an origami of your choice.
In case you find making animal and bird origami too simple, and you consider yourself an advance user, then Skilled Origami is for you. This one has intricate shapes of dinosaurs, submarines, and other unusual shapes like space invader, sorcerer, etc. If you use the app judiciously, you can work on your technique with these step-by-step tutorials.
- First off i just want to say that i LOVE your site! I haven't found a site with this good of origami instructions yet! I love that you have step-by-step instructions and photos to go along. The photos help me a TON! If i don't understand the instructions i can just look a the picture to help me along. I never thought I could do origami and I never even thought about trying. I thought that origami would be too hard for me, but since i found this site I realized that is so untrue! Ever since I found this I have been making origami and the assortment is growing by the week! I could write about how much I love this site forever but I think this is enough. I hope you keep on adding new origami because I'm almost through with these! I love this site but just a few of the instructions were a little bit hard for me to figure out but I'm in the groove now. I would like a little bit harder looking but easy doing origami though. Thank you SO much for creating this site! You really are spreading joy one fold at a time! I hope i will be uploading some pictures soon! Thanks again! (Oct 2011)
- I really enjoy your site. After I studied and made all of the origami base folds I was finally able to really understand what I was doing. I always wanted to learn origami but the few times in my life that I tried I could not understand the instructions. Learning how to make the base folds on your site changed my way of thinking and doing! Suddenly I understood. Finally I am able to fold origami animals and whatever I want. Thank you for taking the time and effort to make this website possible. You have offered a little bit of joy to me and I am happy to receive it!(March 2011)
-Hello! I'm a BIG origami fan and even though I started about 1 year ago, I've made TONS of them! And I just wanted to say thanks for EVERYTHING! This is the best site because everything is clear and accurate :) Thank you for everything!(Dec 2010)
- I house-sat for a family friend this summer and decided to make them a few pieces of origami as a welcome home display on their entrance table: 3 vases on a lotus each, with 3 lilies and a crane each. Thanks so much for your fantastic instructions! It was just what I've been looking for--the best, clearest, easiest to understand instructions I've found! Keep up the good work! (Aug 2010) 2ff7e9595c
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