This will automatically adjust how long the trails are so that they do not lag the simulation excessively.Īlternatively, you can set this value yourself, with the min segments value-box, where you enter a number to select the number of segments the trail must be. The next box, Auto length for trail segments. Note that the longer you hold down the arrow keys, the faster the value goes up, and vice versa. I'll just call this a value-box for simplicity, because the point of it is to enter a valid value. You can click and type in a number, click to open a sidebar and click a preset number, or click on the arrow keys to move the number up and down. Some of the following values in this bar are a special kind of box. This can also be toggled on and off by pressing the "T" key. This can also be toggled on and off by pressing the "L" key.Īgain, Checking or Unchecking the box next to Trails will turn on of off the trails of celestial bodies. However this option only puts shadows on rings, and not other dust particlesĬhecking or Unchecking the box next to Label will turn on of off the names or labels of celestial bodies. This option is nearly identical to the Shadows & Lights on Dust option. The simulation may slow down depending on how many rings and shadows you have. Checking this option will cost you CPU power. The "Shadows on Rings" option lets rings have shadows. X Dust, X Trails, and X Impacts simply remove all dust, trails, and impacts.Ĭtrl-D is the shortcut key to remove dust, Note that at high time-steps, Euler becomes more accurate, so if you run a simulation a faster than it is normally stable at, use Euler. Inaccurate especially in highly eccentric orbits. Universe Sandbox can use both RK4 and Euler math to calculate the position of objects as they are moved by gravitational forces. On the left is RK4 and on the right is Euler. The option on the right, “Collideâ€, causes intersecting bodies to merge into a larger one.īelow is the accuracy mode setting. It causes bodies to bounce when the intersect, or collide with each other. The option on the left is labeled “Bounceâ€. On very the top, is the Collision mode settings. At the bottom of each will be a screenshot if appropriate (For example, there won't be a screenshot for accuracy mode you can't show that.) In this section a summary of each option, knob, slider, check-box, drop-down box, and/or anything other option will displayed along with any tips and tricks. ![]() The one on the right controls and manipulates bodies, including adding new bodies. The middle one changes the mode of the simulation (Mode panel) The one on the left controls all camera and view options. There are 3 panels at the bottom of the screen. On the top-left corner of the screen is the bar where you can control gravity and time. ![]() I'll call this the (Simulation Settings) bar. On the left side, is all the Simulation Options settings, these will change how your simulation looks and works. To the right of the screen is the Object editing bar, where you can change a celestial body's size, weight, and more. ![]() It's spread out over several posts because I want to be able to add to the guide and the 20,000 character limit.ītw the random numbers (1.1, 1.2, etc) are so you can "Ctrl-F" and skip quickly to that section.Įdit: the image links are broken because the site i used to host images has shuffled them all. The images are in links and not 'd because that causes page to load slow and the images are larger than screen if I post them. Posting it before another 5 updates come out and I'll update it ASAP. I started when Universe Sandbox was still version 2.1.3 not much has changed since, but I'll have to redo several images, so it might take a while. There is no complete manual at the moment, so I wrote this. If you see any errors and/or typos, feel free to tell me so I can fix it. This is a guide to using Universe Sandbox.
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