Tank rig tutorial --Link
  • Author Felix,Joleanes
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Hello everyone, this tutorial will guide you through the process of creating a fully tank rig system in 3ds max, well… maybe not fully but certainly with a lot of tools to make a realistic tank animation, actually, when you’ve learned this, you’ll be able to make a car rig too with a little modifications. This is a medium-level tutorial, so you need some knowledge with the max’s rigging tools (bones, IKs, constraints, and so).

You can check the tank’s behavior in this video: video_tank.mov (right click, save target as)

What you’re gonna learn:

GROUND PROJECTION SYSTEM:
With this system our rig will be able to detect a ground and adapt itself over the ground’s surface, we will only need to animate a point through a spline path. The system could work without that spline, but the fact is that the next features of this rig need this usage. There are more complex systems that work pretty fine only with transform keyframes, but they’re history dependant and consume more cpu resources than this one, maybe later on we’ll be checking those methods.

01 ground sys ex Tank rig tutorial

AUTO SPINNING WHEELS

This system makes the animator’s life easier, well… it’s what a rig suposes to do. Having a path where the tank will going to travel we’re going to define the wheel behavior in respect to this distance. Here we’re going to use some scripting and some high school math, but don’t be afraid! if you haven’t tried these stuff yet, now we’re going to learn, it’s not hard, trust me, in fact, all the math that we’re going to use will be multiply and divide.

02 wheel sys ex Tank rig tutorial

AUTO SLIDE CATERPILLAR

The caterpillar band will be composed on several pieces slidding through a spline which will be projected to the ground too, this is more realistic than other systems like using a path deform modifier over a whole caterpillar band, that’s because each caterpillar’s piece has its own behavior instead of beign rubber-deformed like the path-deform method. here we’re going to use script controllers too, very similar to the wheels system. and some iterative macro operations. This last one will be very useful for a lot of tasks for other kind of projects, in a few words it means to do a lot of repetitive tasks in a few lines of code.

03 caterpillar sys ex Tank rig tutorial



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