![]() The good news is that the laws we ignored (as rotation momentum, center of gravity, centripetal force.), are here anyway, as you can observe, because they emerge from the complex interaction between beams) It can be used to build almost any kind of joint.īy assembling rods in certain way, you can constraint movements and synthesize most useful joints.įor example the suspensions and direction of trucks uses such construction techniques to limit movements only in certain directions. Why did we chose ball joints Because: It requires less computation to simulate, and keep the physics simple (because of this, the simulated elements are dimensionless, that means that a lot of physics law are irrelevant and do not need to be simulated. If you let a square somewhere it will fold, or it will be a soft zone (it will stay rigid because of other parts of the geometry, adding strains to this part). ![]() So for example, if you have a cubic structure, you must add diagonal rods in all the faces. To design rigid bodies you must have triangles everywhere, in any direction. It may sound abstract, but in practice you will immediately see the result: anything that is not triangulated will fold. That means that no force opposes a change of angles between two beams connected to the same node. ![]() Beto bike seat instruction manual download free apps One important thing is that the interconnection of beams to nodes uses what is known as a ball joint. ![]() You have to define: Nodes: these are the points of interconnection of rods (the same as the balls in Geomag).įor the physics engine, these nodes are the only concrete elements of the truck: they have a mass and can collide with other elements, but they are dimensionless.įor the physics engine they are massless and are composed of a spring and a damper, so their length can change depending on the forces it bears.Īlso, if you want to dress the chassis with a texture, you can fill any node triangle with a polygon (like the panels in geomag, but in RoR they deform like if they were made of rubber). To build a truck in Rigs of rods, you need to design a structural chassis composed of a lattice of rods. ![]() To grasp the idea, take a look at these games that use the same construction logic: Geomag is a real-world construction game that uses metallic balls and magnets.īridge Construction Set is a video game where you build and test bridges. It only simulates a set of points, called Nodes interconnected by Beams.Īssembling these elements to form the structure of a truck makes a truck.īut you could also assemble them to do a car, a bike, a giant robot, a boat, a plane, a building, a bridge, anything, and it would be simulated the same way. ![]()
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