Blender Eng Tutorial 04 Better Mechanics英文电子书.pdf

Better Mechanics with by S68 who, in the real word answers to the name of Stefano Selleri selleri@det.unifi.it 29-07-2002 - updated 01-10-2002 Introduction My 4th tutorial. Background: theres plenty of people doing mecha things, lately, a lot of spiders in particular. Someone is also on animating them (walkcycles etc.), and this again is great... BUT... But, many mecha Ive seen (except few notable exceptions) lacks a proper way of moving the arms, no gears, no pistons, well, at least not realistic ones. The true drama comes with animation. How do you animate a piston properly? Well, here is my solution :). The Arm First step is to create the mesh for the arms. We are not here for organic, we are here for mechanics. So no single mesh thing. The arm/leg/whatever is made of rigid parts, each part is a single mesh, parts moves/rotates one with respect to the other. Although cover image has four arms, each of which have 5 sections, it is clearer to start with just a single joint arm. My suggestion is this, the arm, on the left, made by two equal sections, and the forearm, on the right, made by just one section. Note the cylinders which represents the shoulder (left) the elbow (center) and the wrist (right). S68 - Better Mechanics Page 1/ 1 The other cylinders in the middle of the arm and forearm are the places where the piston will be linked to. Note that it is much easier if the axis of mutual rotation (shoulder, elbow, etc.)