x3d | 易学教程

interpolation in 3d computer graphics

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问题 I was wondering if someone could help with explaining in simple terms what interpolation is and how its used in 3d computer graphics 回答1: Simply put: given two points A and B, find a point between them. For example, if I want to move something along a line from a position x=1 to x=4 in one step: 1-----------------------4 The first step is at location 1, the second step is at location 4, so the object moves instantly from one location to the other. However, if I want the object to take a

百度网址安全中心拦截解除的办法分享

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临近2019年底，客户的公司网站被百度网址安全中心拦截了，公司网站彻底打不开了，影响范围很大，于是通过朋友介绍找到我们SINE安全公司寻求帮忙解封，关于如何解除百度的安全拦截提示，下面就将我们SINE安全的解决办法分享给大家，希望能对您有所帮助。事件回忆:12月初，客户刚从公司下班回家，接到领导的电话说是网站在百度怎么打不开了，客户第一时间用手机访问网站，发现网站正常，随后又用百度去搜索公司网站域名，发现网站竟然被百度网址安全中心拦截了并提示：违法违规网页，建议关闭,您访问的是：//公司域名，此网页可能为违法违规网页，包含非法信息以及不健康内容，请谨慎访问。如下图所示：整个客户公司的网站在百度无法打开，彻底的被百度拦截掉了，百度提示的肯定是有原因的，我们SINE安全工程师通过百度搜索发现，网站在搜索结果里被标注了：百度网址安全中心提醒您：该站点可能受到黑客攻击，部分页面已被非法篡改！下图所示：点击去后，弹出百度的拦截页面，提示：该站点可能由于受到黑客攻击，部分页面已被非法篡改，可能会威胁到您的财产和信息安全，建议您谨慎访问。我们处理了太多像这种情况的网站了，我们打开百度网址安全中心https://bsb.baidu.com/扫描看一下是什么原因导致网站被百度拦截，输入客户公司网址点查询，发现网站被标记危险，并提示：危险，网站网页中含有恶意信息！

百度网址安全中心拦截解除的办法分享

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VRML to X3D Conversion

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问题 I'm working on a web application that manages VRML files. I also want to let users see the uploaded files, without requiring a specific plug-in or player. X3DOM allows viewing X3D files without plug-ins on most browsers, so I'd like to use it. Alas, it works on X3D files, and not VRML files. I need to convert VRML files to the X3D format. The same people behind X3DOM released a package called InstantReality that has a utility that converts VRML to X3D. However, I'd much rather not use an

VRML to X3D Conversion

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I'm working on a web application that manages VRML files. I also want to let users see the uploaded files, without requiring a specific plug-in or player. X3DOM allows viewing X3D files without plug-ins on most browsers, so I'd like to use it. Alas, it works on X3D files, and not VRML files. I need to convert VRML files to the X3D format. The same people behind X3DOM released a package called InstantReality that has a utility that converts VRML to X3D. However, I'd much rather not use an external utility (I'm not even sure I'm allowed to use it on a commercial environment, I couldn't find its

Bouncing Ball. Making it slow down at peak of height

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I have created a bouncing ball animation in x3d. I am just curious how I could make the ball slow down at the peak of its height to make it look more realistic. Thank you in advance. <X3D profile="interactive"> <Scene> <Background skyColor='0.5 0.5 1'/> <Transform DEF="Ball" translation="0 1 0" > <TouchSensor DEF="Touch"/> <Shape> <Appearance> <Material diffuseColor="1 0 0 "/> </Appearance> <Sphere radius='1'/> </Shape> </Transform> <TimeTrigger DEF="Trigger"/> <TimeSensor DEF="Clock" loop="false" cycleInterval="5" /> <PositionInterpolator DEF="Position" key="0.0 0.5 1.0" keyValue="0 1 0 0 5 0

Bouncing Ball. Making it slow down at peak of height

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问题 I have created a bouncing ball animation in x3d. I am just curious how I could make the ball slow down at the peak of its height to make it look more realistic. Thank you in advance. <X3D profile="interactive"> <Scene> <Background skyColor='0.5 0.5 1'/> <Transform DEF="Ball" translation="0 1 0" > <TouchSensor DEF="Touch"/> <Shape> <Appearance> <Material diffuseColor="1 0 0 "/> </Appearance> <Sphere radius='1'/> </Shape> </Transform> <TimeTrigger DEF="Trigger"/> <TimeSensor DEF="Clock" loop=