Archive: 4 posts

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How many of you have wanted to make some sort of hovercraft or landspeeder-like vehicle in LBP2, but were never able to get it to work the way you wanted? Yeah, me too. Let's just say it has been something I've been working on since even the LBP1 days. Several months ago, I figured out how to implement the effect I was going for. However, the tech sat in a half finished level that I was having a severe "creative block", which kept me from ever finishing the level. Then the LPB Vita beta came out and I was re-inspired. After throwing together a simple demo of the tech for the Vita beta, I decided to finish my LBP2 version, and maybe even publish a companion tutorial to go along with it. Originally, I was just making the tutorial level so I'd have screenshots for this post. However, it quickly became apparent that I could probably explain things better by demonstrating...so that's what I did. The Repulsorlift Tech Tutorial (http://lbp.me/v/c802c9) level should show you most of what you need to know to create your own repulsorlift vehicle. I realize that it isn't exhaustive in its descriptions--that's a limitation of having a sackbot convey all the useful information--but I think it will get most people 90% of the way. This post, therefore, is to hopefully fill in the gaps and provide that last 10% of useful information for those interested. Also, here's a few screenshots. The last one shows some of the circuitry for the Basic Repulsorlift Vehicle, for which I will go into a little more detail further down. (This is a prize for completing the tutorial.) http://www.lbpcentral.com/forums/attachment.php?attachmentid=40476&d=1336819952 http://www.lbpcentral.com/forums/attachment.php?attachmentid=40475&d=1336819952 http://www.lbpcentral.com/forums/attachment.php?attachmentid=40474&d=1336819952 So, if you play through the tutorial, you should have a fairly good idea of what the impact sensors, selector, and movers are for. I also want to share just a few tips that will help your vehicle "feel" right. Remember to make sure your Impact Sensors are set to Include Touching and Require Tag. The battery is so that if no impact sensors are triggered, no mover will be active. Set dampening to 0% for all movers. Set dampening to 20% independently by using a gravity material tweaker using 0% Anti-gravity, 20% Dampening, 0% Buoyancy. One of these should be on each repulsorlift module. This has the effect of keeping your vehicle from "bouncing" too much. (Anti-gravity is not needed...we want our vehicle to be fully affected by gravity.) If your vehicle still bounces too much, try putting a gyroscope on the main chassis and/or add a 0 speed Simple Rotator with Strength set to betwen 20% and 30%. This has the effect of dampening the vehicle rotation without having to crank up the dampening on the repulsor modules. You may also wish to put 10% dampening on the main vehicle, using a gravity material tweaker. (I find that too much dampening takes away some of the feeling of mass that the vehicle has...use it sparingly.) While I haven't yet done it, there's no reason this tech cannot be scaled up to support very large repulsorlift vehicles. The 10 movers above (per module) are set to 100 speed, local space, 0% dampening, and vary from 10% to 100% strength. So, the closer the metal part of the module is to the ground, the harder it is pushed up. Since the repulsorlift modules only respond to touching level geometry that is tagged with the appropriate tag, you have complete control over what types of things affect your vehicle. For example, you can have loose debris on the ground, and as long as none of it is tagged, it will be ignored by the repulsorlift modules. Anyway, I think that's it. Feel free to ask questions...there may be other things I've forgotten to share. Check out my prototype level Sleipnir XR-3 Repulsorlift Vehicle (http://lbp.me/v/b54s9w) to see my first working prototype put through the paces on a lengthy test track. Also...I'd love to hear if you find this tech useful for your level(s). Feel free to post a level link here and I'll check it out!

2012-06-22 19:34:00 Author: Angantyr Posts: 18

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Neat. It's pretty simple how these things work.. I have seen one before and it was really cool. Great tutorial!

2012-06-23 01:20:00 Author: Wolffy123 Posts: 406

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This was genius! After playing your level, I decided to make one of my own, and not only have I forged a hovercraft-esque vehicle, I also managed to outfit this tech into a sackbot! If you'd like, I can make a demo of it crediting you for the idea? Again, this is a great tutorial and concept, and thanks!

2012-06-30 03:11:00 Author: Super_Clone Posts: 849

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Hmmm...a repulsorlift sackbot? That's awesome! The thought never crossed my mind. That is precisely why I decided to share my methods with the LBP community. Yeah, I'd absolutely love to see a demo of it.

2012-07-02 17:44:00 Author: Angantyr Posts: 18

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