jrsite.blogg.se - Origami game

Cuts have green stroke - rgb(0, 255, 0), hex #00ff00 - use this edge type.This is especially relevant in patterns with curved creases. The way the model bends in between mountain/valley folds. Drawing in facet creases allows you to control In the constraints of the simulation will allow them to bend slightly. Facet creases (yellow triangulation lines) are creases that try to remain flat (0° fold angle) as the pattern folds, but some compliance.

It may not be necessary to add triangulation lines on your pattern. How the app automatically triangulated your pattern by enabling "Facet Crease" visibility in the Advanced Options > Edges Visibility In general, patterns are more stable when their triangulation is symmetric and minimizes long, skinny triangles. To control the triangulations, draw lines in yellow - rgb(255, 255, 0), hex #ffff00.

Before the model can enter the simulator, this tool will automatically triangulate regions in the pattern that form polygons with more than three sides.

Patterns contain creases with varying final fold angles: Any fold angle between 0° and 180° may be used.

The final fold angle of a mountain or valley fold is set by its opacity.

This edge type for both the outline of the pattern, and any internal holes.

Boundary edges have black stroke - rgb(0, 0, 0), hex #000000 - use.

Valley folds have blue stroke - rgb(0, 0, 255), hex #0000ff.

Mountain folds have red stroke - rgb(255, 0, 0), hex #ff0000.

The SVG importer supports path, line, rect, polygon, and polyline objects with the appropriate.

If you are unsure whether your FOLD file is valid, you can inspect it using the You may specify the target fold angle of each crease using the edges_foldAngles field. This tool imports FOLD v1.0 files with all of the following fields populated: The FOLD file format is specified in these docs. More documentation about the simulation methods in this paper.īad design files will throw errors and create models that explode or cannot be solved, here are some tips for

GIF and WebM video export uses CCaptureįlat UI theme used to build the regular GUI.

numeric.js for linear algebra operations.

Portability to multiple VR controllers by.

Arbitrary polygonal faces of imported geometry are triangulated using the Earcut Library.

FOLD is used as the internal data structure, methods from the.

path-data-polyfill helps with SVG path parsing.

All rendering and 3D interaction done with three.js.

To use this app in an interactive virtual reality mode.

If you are working from a computer connected to a VR headset and hand controllers, follow these instructions.

Visualize the internal strain of the origami as it folds using the Strain Visualization in the left menu of the Advanced Options.

Export FOLD files or 3D models ( STL or OBJ ) of the folded state of your design ( File > Save Simulation as.Upload your own crease patterns in SVG or FOLD formats, following these instructions.Import other patterns under the Examples menu.Drag to rotate the model, scroll to zoom.Slide the Fold Percent slider to control the degree of folding of the pattern (100% is fully folded, 0% is unfolded,Īnd -100% is fully folded with the opposite mountain/valley assignments).Make good demo files, please send them to me (Amanda) so I can add them to the Examples menu. If you have interesting crease patterns that would Guest Freeform Variations of Origami by Tomohiro TachiĪll simulation methods were written from scratch and are executed in parallel in several GPU fragment shaders for fast performance.īuilt by Amanda Ghassaei as a final project for Geometric Folding Algorithms.Ĭode available on Github. This solver extends work from the following sources: Origami Folding: A Structural Engineering Approach by Mark Schenk and Simon D. It does this by iteratively solving for small displacements in the geometry of an initially flat sheet due to forcesĮxerted by creases. This simulation attempts to fold every crease simultaneously. It may look a little differentįrom what you typically think of as "origami" - rather than folding paper in a set of sequential steps, This app allows you to simulate how any origami crease pattern will fold.