渲染.htm

此文件是微软MSDN中d3d部分资料的翻译文件

</SPAN></DIV>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">应用程序使用<SPAN 
lang=EN-US>DrawPrimitive 
系列方法渲染三维场景。以下主题讨论用DrawPrimitive渲染。<o:p></o:p></SPAN></SPAN></P>
<UL type=disc>
  <LI class=MsoNormal 
  style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l17 level1 lfo3"><U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
  href="http://www.gesoftfactory.com/developer/Rendering.htm#着色">着色</A></SPAN></U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN> 

  <LI class=MsoNormal 
  style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l17 level1 lfo3"><U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
  href="http://www.gesoftfactory.com/developer/Rendering.htm#呈现场景">呈现场景</A></SPAN></U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN> 

  <LI class=MsoNormal 
  style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l17 level1 lfo3"><U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
  href="http://www.gesoftfactory.com/developer/Rendering.htm#渲染图元">渲染图元</A></SPAN></U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN> 

  <LI class=MsoNormal 
  style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l17 level1 lfo3"><U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
  href="http://www.gesoftfactory.com/developer/Rendering.htm#深度缓存">深度缓存</A></SPAN></U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN> 

  <LI class=MsoNormal 
  style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l17 level1 lfo3"><U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
  href="http://www.gesoftfactory.com/developer/Rendering.htm#雾">雾</A></SPAN></U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN> 

  <LI class=MsoNormal 
  style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l17 level1 lfo3"><U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
  href="http://www.gesoftfactory.com/developer/Rendering.htm#阿尔法混合">阿尔法混合</A></SPAN></U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN> 

  <LI class=MsoNormal 
  style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l17 level1 lfo3"><U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
  href="http://www.gesoftfactory.com/developer/Rendering.htm#线段绘制">D3DX线段绘制</A></SPAN></U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN> 
  </LI></UL>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">
<HR align=center width="100%" SIZE=1>
</SPAN></DIV>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 1"><A 
name=着色><B><SPAN 
style="FONT-SIZE: 24pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 18.0pt; mso-fareast-language: ZH-CN">着色<SPAN 
lang=EN-US><o:p></o:p></SPAN></SPAN></B></A></P><SPAN 
style="mso-bookmark: 着色"></SPAN>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">
<HR align=center width="100%" SIZE=1>
</SPAN></DIV>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">本节描述<SPAN 
lang=EN-US>Microsoft&reg; Direct3D&reg;中用于控制三维多边形着色的技术。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 2"><B><SPAN 
style="FONT-SIZE: 18pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">概述<SPAN 
lang=EN-US><o:p></o:p></SPAN></SPAN></B></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 72pt; TEXT-INDENT: -18pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l3 level1 lfo5"><![if !supportLists]><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Symbol; mso-bidi-font-family: Symbol; mso-fareast-language: ZH-CN; mso-fareast-font-family: Symbol; mso-bidi-font-size: 12.0pt"><SPAN 
style="mso-list: Ignore">·<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp; 
</SPAN></SPAN></SPAN><![endif]><U><SPAN lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
href="http://www.gesoftfactory.com/developer/Rendering.htm#着色模式">着色模式</A></SPAN></U><SPAN 
lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 72pt; TEXT-INDENT: -18pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l3 level1 lfo5"><![if !supportLists]><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Symbol; mso-bidi-font-family: Symbol; mso-fareast-language: ZH-CN; mso-fareast-font-family: Symbol; mso-bidi-font-size: 12.0pt"><SPAN 
style="mso-list: Ignore">·<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp; 
</SPAN></SPAN></SPAN><![endif]><U><SPAN lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
href="http://www.gesoftfactory.com/developer/Rendering.htm#着色模式的比较">着色模式的比较</A></SPAN></U><SPAN 
lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="MARGIN-LEFT: 72pt; TEXT-INDENT: -18pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l3 level1 lfo5"><![if !supportLists]><SPAN 
lang=EN-US 
style="FONT-SIZE: 10pt; FONT-FAMILY: Symbol; mso-bidi-font-family: Symbol; mso-fareast-language: ZH-CN; mso-fareast-font-family: Symbol; mso-bidi-font-size: 12.0pt"><SPAN 
style="mso-list: Ignore">·<SPAN style="FONT: 7pt 'Times New Roman'">&nbsp;&nbsp; 
</SPAN></SPAN></SPAN><![endif]><U><SPAN lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
href="http://www.gesoftfactory.com/developer/Rendering.htm#设置着色模式">设置着色模式</A></SPAN></U><SPAN 
lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 1"><A 
name=着色模式><B><SPAN 
style="FONT-SIZE: 24pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 18.0pt; mso-fareast-language: ZH-CN">着色模式<SPAN 
lang=EN-US><o:p></o:p></SPAN></SPAN></B></A></P><SPAN 
style="mso-bookmark: 着色模式"></SPAN>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">
<HR align=center width="100%" SIZE=1>
</SPAN></DIV>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">用于渲染多边形的着色模式完全影响到渲染结果。着色模式决定在多边形表面上任意一点上颜色的强度和光照。<SPAN 
lang=EN-US>Microsoft&reg; Direct3D&reg;支持两种着色模式。<o:p></o:p></SPAN></SPAN></P>
<UL type=disc>
  <LI class=MsoNormal 
  style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l0 level1 lfo8"><U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
  href="http://www.gesoftfactory.com/developer/Rendering.htm#平面着色">平面着色</A></SPAN></U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN> 

  <LI class=MsoNormal 
  style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l0 level1 lfo8"><U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><A 
  href="http://www.gesoftfactory.com/developer/Rendering.htm#高洛德着色">高洛德着色</A></SPAN></U><SPAN 
  lang=EN-US 
  style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><o:p></o:p></SPAN> 
  </LI></UL>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 2"><A 
name=平面着色><B><SPAN 
style="FONT-SIZE: 18pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">平面着色<SPAN 
lang=EN-US><o:p></o:p></SPAN></SPAN></B></A></P><SPAN 
style="mso-bookmark: 平面着色"></SPAN>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">在平面着色模式中，当<SPAN 
lang=EN-US>Direct3D渲染流水线渲染一个多边形时，使用第一个顶点的材质颜色作为整个多边形的颜色。用平面着色渲染的三维物体有明显的边缘，如果它们不共面的话。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">下图显示了一个用平面着色模式渲染的茶壶。我们可以清楚地看到每个多边形的轮廓。平面着色是计算量最小的着色模式。<SPAN 
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><SPAN lang=EN-US 
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN"><!--[if gte vml 1]><v:shapetype 
id=_x0000_t75 coordsize = "21600,21600" o:preferrelative = "t" o:spt = "75" 
filled = "f" stroked = "f" path = " m@4@5 l@4@11@9@11@9@5 xe"><v:stroke 
joinstyle = "miter"></v:stroke><v:formulas><v:f eqn = 
"if lineDrawn pixelLineWidth 0 "></v:f><v:f eqn = "sum @0 1 0 "></v:f><v:f eqn = 
"sum 0 0 @1 "></v:f><v:f eqn = "prod @2 1 2 "></v:f><v:f eqn = 
"prod @3 21600 pixelWidth "></v:f><v:f eqn = 
"prod @3 21600 pixelHeight "></v:f><v:f eqn = "sum @0 0 1 "></v:f><v:f eqn = 
"prod @6 1 2 "></v:f><v:f eqn = "prod @7 21600 pixelWidth "></v:f><v:f eqn = 
"sum @8 21600 0 "></v:f><v:f eqn = "prod @7 21600 pixelHeight "></v:f><v:f eqn = 
"sum @10 21600 0 "></v:f></v:formulas><v:path o:extrusionok = "f" 
gradientshapeok = "t" o:connecttype = "rect"></v:path><o:lock aspectratio="t" 
v:ext="edit"></o:lock></v:shapetype><v:shape id=_x0000_i1029 
style="WIDTH: 83.4pt; HEIGHT: 59.4pt" type = "#_x0000_t75" coordsize = 
"21600,21600"><v:imagedata o:title="flattea" src = 
"Rendering_files/image001.gif"></v:imagedata></v:shape><![endif]--><![if !vml]><img border=0 width=111 height=79
src="Rendering_files/image001.gif" v:shapes="_x0000_i1029"><![endif]><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 2"><A 
name=高洛德着色><B><SPAN 
style="FONT-SIZE: 18pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">高洛德着色<SPAN