[3D影视] 《掌握x3d》系列教程第二节

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电梯直达

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发表于 2011-12-26 15:19:05 |只看该作者 |倒序浏览

掌握X3D 第二节

主要内容：外观

材质 Material

Appearance 外观节点
Material 材质节点
•diffuseColor 决定色彩
<Shape>
<Appearance>
<Material diffuseColor="1 1 0" />
</Appearance>
<Box />
</Shape>
色彩的值为RGB值，可用 photoshop查色并计算。
shininess 光亮程度
transparency 透明度
<Material diffuseColor="1 1 0" transparency="0.9"/>
ambientIntensity 环境色彩强度
emissiveColor 色彩的放射程度
specularColor 色彩的反射形式
<Material diffuseColor="1 1 0" emissiveColor="0 0 1" specularColor="1 0 0"/>

例子—广告牌

<X3D>
<Scene>
<Transform translation ="0 1.5 0">
<Shape>
<Appearance>
<Material diffuseColor="0.3 0.7 0.2" />
</Appearance>
<Box size="0.3 1 2"/>
</Shape>
</Transform>
<Transform translation ="0 0 0">
<Shape>
<Appearance>
<Material diffuseColor="1 1 0" />
</Appearance>
<Cylinder height="3.0" radius="0.2" />
</Shape>
</Transform>
</Scene>
</X3D>
贴图ImageTexture

url 贴图位置
<Shape>
<Appearance>
<ImageTexture url="1.jpg"/>
</Appearance>
<Box/>
</Shape>
几个面不同？

<Transform translation="0 0 1"><Shape>
<Appearance><Material diffuseColor="1 0 0"/><ImageTexture url="Top.jpg"/> </Appearance>
<Box size="2 2 0.005 " />
</Shape></Transform>
<Transform translation="0 0 -1"><Shape>
<Appearance><Material diffuseColor="1 0 0"/><ImageTexture url="Top.jpg"/> </Appearance>
<Box size="2 2 0.005 " />
</Shape></Transform>
<Transform translation="0 1 0"><Shape>
<Appearance><Material diffuseColor="1 0 0"/><ImageTexture url="Mid.jpg"/> </Appearance>
<Box size="2 0.005 2 " />
</Shape></Transform>
<Transform translation="0 -1 0"><Shape>
<Appearance><Material diffuseColor="1 0 0"/><ImageTexture url="Mid.jpg"/> </Appearance>
<Box size="2 0.005 2 " />
</Shape></Transform>
<Transform translation="1 0 0"><Shape>
<Appearance><Material diffuseColor="1 0 0"/><ImageTexture url="Side.jpg"/> </Appearance>
<Box size="0.005 2 2 " />
</Shape></Transform>
<Transform translation="-1 0 0"><Shape>
<Appearance><Material diffuseColor="1 0 0"/><ImageTexture url="Side.jpg"/> </Appearance>
<Box size="0.005 2 2 " />
</Shape></Transform>
圆柱体贴图

<Shape>
<Appearance>
<Material/>
<ImageTexture url="2.png"/>
</Appearance>
<Cylinder bottom="false" height="3.2" side="false"/>
</Shape>
<Shape>
<Appearance>
<Material/>
<ImageTexture url="3.png"/>
</Appearance>
<Cylinder height="3.2" side="false" top="false"/>
</Shape>
<Shape>
<Appearance>
<Material/>
<ImageTexture url="1.jpg"/>
</Appearance>
<Cylinder bottom="false" height="3.2" top="false"/>
</Shape>
球体

包起来
<Shape>
<Appearance>
<ImageTexture url="2.jpg" />
</Appearance>
<Sphere />
</Shape>
视频纹理

MovieTexture
loop 是否循环播放
url 视频地址
<Shape>
<Appearance>
<MovieTexture loop= " true " url= " 1.mpg " />
</Appearance>
<Box />
</Shape>
例子：电视

前端
<Transform translation ="0 0 0">
<Shape>
<Appearance>
<Material diffuseColor="0.9 0.9 0.9" />
</Appearance>
<Box size="4 4 1"/>
</Shape>
</Transform>
后端
<Transform translation ="0 0 -1">
<Shape>
<Appearance>
<Material diffuseColor="0.9 0.9 0.9" />
</Appearance>
<Box size="3 3 1"/>
</Shape>
</Transform>
天线
<Transform translation ="-1.4 2.6 0">
<Shape>
<Appearance>
<Material diffuseColor="1 1 0" />
</Appearance>
<Cylinder height="1.2" radius="0.1" />
</Shape>
</Transform>
屏幕
<Transform translation ="0 0 0.5">
<Shape>
<Appearance>
<MovieTexture loop="true" url="Temp/sp.avi"/>
</Appearance>
<Box size="3.6 3.6 0.12"/>
</Shape>
</Transform>
纹理变换TextureTransform

rotation 旋转
scale 缩放
translation 位置
<Shape>
<Appearance>
<ImageTexture url= " 1.jpg " />
<TextureTransform translation= " 0.5 0 " />
</Appearance>
<Box />
</Shape>
<TextureTransform rotation= " 45 " />
<TextureTransform scale="2 3" />