随笔分类 -  away3d

摘要：我试着翻译了第五章几段要紧的概念，算是用来加深理解吧。 先讨论下shading”翻译成什么？翻成“着色”，3D中的shading专指根据灯光对材质着色，普通的WireFrameMaterial也可以填充指定颜色，但这种“着色”不叫“shading”。看下百度百科：Shading(着色处理)绝大多数的3D物体是由多边形（polygon）所构成的，它们都必须经过某些着色处理的手续，才不会以线结构（wireframe）的方式显示。这些着色处理方式有差到好,依次主要分为FlatShading、GouraudShading、PhoneShading、ScanlineRenderer、Ray-Trace. 阅读全文

摘要：1，什么是Mesh？它的由来？ 书上解释说：A mesh is a collection of vertices made visible by a collection of elements that use those vertices. As a saving measure, vertices can be reused by multiple elements in a mesh; it is rarely necessary to build elements with unique vertex points. A simple cube, for example, can h 阅读全文

摘要：1，留心flash原生对象的z属性 书上的话“From Flash 10 onward, native display objects have positions based in a 3D coordinate system but are missing automatic Z sorting. This means display objects placed far away on the Z axis won’t necessarily be drawn behind those nearby, occasionally resulting in unnatural overlap 阅读全文

摘要：*atten：文章里嵌有代码段，若使用博客自带的“复制到剪贴板”功能，再粘贴到代码编辑器，可能会在某些部分插入&nbsp导致编译失败。 想用as3写一个3D渲染引擎，可惜又没什么基础。因此先熟悉一款别人写的3D引擎，然后模仿它做一个。我暂时拿到的理论书是《3D游戏编程大师技巧》和《3D Game Engine Design, Second Edition A Practical Approach to Real-Time Computer Graphics》。偶然看到了《the essential guide to 3D in flash》（我后面就简称作Essential Guide 阅读全文