<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">The standard Alice version attempts to hand-off some of the graphics manipulations to the graphics cards of a computer. Slow and Steady Alice was built for those machines whose cards could not handle this functionality (over time, those machines are becoming less common). By and large, you will want to use standard Alice, and only try Slow and Steady Alice if your machines are not rendering the worlds correctly. Performance on Slow and Steady Alice will suffer somewhat. </div><br class=""><div class="">I would be interested to know if people still require Slow and Steady…</div><div class=""><br class=""></div><div class="">All the best,</div><div class="">Don Slater</div><div class=""><br class=""></div><div class="">Alice Project</div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Nov 15, 2016, at 12:57 PM, Roger Crowe via alice-teachers <<a href="mailto:alice-teachers@lists.andrew.cmu.edu" class="">alice-teachers@lists.andrew.cmu.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hey Don,<div class=""><br class=""></div><div class="">Thanks for your help. We are using Alice 2.4, Slow and Steady Alice. I've never understood why there are 2 applications included but for whatever reason we've always used Slow and Steady. </div><div class=""><br class=""></div><div class="">Thanks for your help!</div><img src="http://t.sidekickopen16.com/e1t/o/5/f18dQhb0S7ks8dDMPbW2n0x6l2B9gXrN7sKj6v4LCMTW63RPd65vwt0vVRs67n3LvrVvW8NWHmS1k1H6H0?si=6405451927781376&pi=ab9c797c-7fb3-4628-a698-ca164f156d09" style="display:none!important" height="1" width="1" class=""></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Tue, Nov 15, 2016 at 12:29 PM, Donald Slater via alice-teachers <span dir="ltr" class=""><<a href="mailto:alice-teachers@lists.andrew.cmu.edu" target="_blank" class="">alice-teachers@lists.andrew.cmu.edu</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class="">This is interesting…<div class=""><br class=""></div><div class="">It turns out, what I also assumed was the front of the SpiderRobot’s head is oriented differently than the body of the spider robot. And it turns out, this has been true for a long time in Alice (I just tested a version of the robot from Alice 2.2, released in 2009)…</div><div class=""><br class=""></div><div class="">As often as this exercise and this model has been used, it is surprising that we have not caught this before this (at least, I do not remember it coming up before this)…</div><div class=""><br class=""></div><div class="">I have attached a screen shot to illustrate. The image has two spider robots, and two axes, i have set the point of view of the first axes to the entire spiderrobot on the left, and I have set the point of view to the second axes to the head of the spider robot on the right.</div><div class=""><br class=""></div><div class="">Thank you for pointing this out…</div><div class=""><br class=""></div><div class="">All the best,</div><div class="">Don Slater</div><div class=""><br class=""></div><div class="">Alice Project</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><span id="cid:DCF246D3-CA0E-4524-AC67-F430520C76F1@wv.cc.cmu.edu"><spiderRobots.png></span></div><div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Nov 15, 2016, at 11:35 AM, Roger Crowe via alice-teachers <<a href="mailto:alice-teachers@lists.andrew.cmu.edu" target="_blank" class="">alice-teachers@lists.andrew.<wbr class="">cmu.edu</a>> wrote:</div><br class="m_-1569692805351144203Apple-interchange-newline"><div class=""><div dir="ltr" class="">I've taught this lesson before but now an Alice object seems to be acting differently. In Alien Encounter the spider robot's head, which I thought the red visor was actually the front of, when told to <i class="">Turn to Face</i> the wheeledrobot, points the back of his head (opposite the red visor) to the wheeledrobot.<div class=""><br class=""></div><div class="">If I ask the entire Spider robot to <i class="">Turn to face</i> the wheeled robot, the red visor and the body point to the wheeledrobot.</div><div class=""><div class=""><br class=""></div><div class="">What am I missing here?</div></div><img src="http://t.sidekickopen16.com/e1t/o/5/f18dQhb0S7ks8dDMPbW2n0x6l2B9gXrN7sKj6v4LCMTW63RPd65vwt0vVRs67n3LvrVvW8NWHmS1k1H6H0?si=6405451927781376&pi=0098319f-0cfb-4c05-9912-a450d4de70d5" style="display:none!important" height="1" width="1" class=""></div>
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