📄 视区和裁剪viewports and clipping.htm
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0046)http://www.gesoftfactory.com/developer/VnC.htm -->
<HTML xmlns="http://www.w3.org/TR/REC-html40" xmlns:v =
"urn:schemas-microsoft-com:vml" xmlns:o =
"urn:schemas-microsoft-com:office:office" xmlns:w =
"urn:schemas-microsoft-com:office:word"><HEAD><TITLE>Viewports and Clipping</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<META content=Word.Document name=ProgId>
<META content="MSHTML 6.00.2900.3314" name=GENERATOR>
<META content="Microsoft Word 10" name=Originator><LINK
href="VnC_files/filelist.xml" rel=File-List><LINK href="VnC_files/editdata.mso"
rel=Edit-Time-Data><!--[if !mso]>
<STYLE>v\:* {
BEHAVIOR: url(#default#VML)
}
o\:* {
BEHAVIOR: url(#default#VML)
}
w\:* {
BEHAVIOR: url(#default#VML)
}
.shape {
BEHAVIOR: url(#default#VML)
}
</STYLE>
<![endif]--><!--[if gte mso 9]><xml>
<o:DocumentProperties>
<o:Author>GeZiang</o:Author>
<o:LastAuthor>SGuy</o:LastAuthor>
<o:Revision>3</o:Revision>
<o:TotalTime>70</o:TotalTime>
<o:Created>2003-05-10T07:02:00Z</o:Created>
<o:LastSaved>2003-05-10T07:02:00Z</o:LastSaved>
<o:Pages>2</o:Pages>
<o:Words>758</o:Words>
<o:Characters>4327</o:Characters>
<o:Company>S3 Graphics, Shanghai</o:Company>
<o:Lines>36</o:Lines>
<o:Paragraphs>10</o:Paragraphs>
<o:CharactersWithSpaces>5075</o:CharactersWithSpaces>
<o:Version>10.2625</o:Version>
</o:DocumentProperties>
</xml><![endif]--><!--[if gte mso 9]><xml>
<w:WordDocument>
<w:View>Print</w:View>
<w:Zoom>BestFit</w:Zoom>
<w:DontDisplayPageBoundaries/>
<w:TrackRevisions/>
<w:Compatibility>
<w:UseFELayout/>
</w:Compatibility>
<w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
</w:WordDocument>
</xml><![endif]-->
<STYLE>@font-face {
font-family: Wingdings;
}
@font-face {
font-family: 宋体;
}
@font-face {
font-family: @宋体;
}
@page Section1 {size: 595.3pt 841.9pt; margin: 72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin: 35.4pt; mso-footer-margin: 35.4pt; mso-even-footer: url("VnC_files/header.htm") ef1; mso-footer: url("VnC_files/header.htm") f1; mso-paper-source: 0; }
P.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; mso-fareast-language: EN-US; mso-style-parent: ""; mso-pagination: widow-orphan; mso-fareast-font-family: 宋体
}
LI.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; mso-fareast-language: EN-US; mso-style-parent: ""; mso-pagination: widow-orphan; mso-fareast-font-family: 宋体
}
DIV.MsoNormal {
FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; mso-fareast-language: EN-US; mso-style-parent: ""; mso-pagination: widow-orphan; mso-fareast-font-family: 宋体
}
H1 {
FONT-WEIGHT: bold; FONT-SIZE: 24pt; MARGIN-LEFT: 0cm; MARGIN-RIGHT: 0cm; FONT-FAMILY: 宋体; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 1; mso-bidi-font-family: 宋体; mso-pagination: widow-orphan
}
P.MsoFooter {
FONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; FONT-FAMILY: "Times New Roman"; mso-fareast-language: EN-US; mso-pagination: widow-orphan; mso-fareast-font-family: 宋体; tab-stops: center 207.65pt right 415.3pt
}
LI.MsoFooter {
FONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; FONT-FAMILY: "Times New Roman"; mso-fareast-language: EN-US; mso-pagination: widow-orphan; mso-fareast-font-family: 宋体; tab-stops: center 207.65pt right 415.3pt
}
DIV.MsoFooter {
FONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; FONT-FAMILY: "Times New Roman"; mso-fareast-language: EN-US; mso-pagination: widow-orphan; mso-fareast-font-family: 宋体; tab-stops: center 207.65pt right 415.3pt
}
A:link {
COLOR: blue; TEXT-DECORATION: underline; text-underline: single
}
SPAN.MsoHyperlink {
COLOR: blue; TEXT-DECORATION: underline; text-underline: single
}
A:visited {
COLOR: purple; TEXT-DECORATION: underline; text-underline: single
}
SPAN.MsoHyperlinkFollowed {
COLOR: purple; TEXT-DECORATION: underline; text-underline: single
}
P {
FONT-SIZE: 12pt; MARGIN-LEFT: 0cm; MARGIN-RIGHT: 0cm; FONT-FAMILY: 宋体; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-bidi-font-family: 宋体; mso-pagination: widow-orphan
}
PRE {
FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt
}
SPAN.clsglossary {
mso-style-name: clsglossary
}
INS {
TEXT-DECORATION: none; mso-style-type: export-only
}
SPAN.msoIns {
TEXT-DECORATION: underline; text-underline: single; mso-style-name: ""; mso-style-type: export-only
}
SPAN.msoDel {
COLOR: red; TEXT-DECORATION: line-through; mso-style-name: ""; mso-style-type: export-only
}
DIV.Section1 {
page: Section1
}
OL {
MARGIN-BOTTOM: 0cm
}
UL {
MARGIN-BOTTOM: 0cm
}
</STYLE>
<!--[if gte mso 10]>
<style>
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";}
</style>
<![endif]--></HEAD>
<BODY lang=ZH-CN style="tab-interval: 36.0pt" vLink=purple link=blue>
<DIV class=Section1>
<P class=MsoNormal
style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 1"><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">视区和裁剪<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></B></P>
<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">从概念上讲，视区是一个二维矩形，三维场景被投影到这个矩形中。在<SPAN
lang=EN-US>Microsoft®
Direct3D®中，这个矩形以Direct3D表面内的坐标的形式存在，该表面被系统用作渲染目标。投影变换把顶点转换到视区所使用的坐标系统。<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">应用程序用<SPAN
lang=EN-US>Direct3D中的视区指定以下特性。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l4 level1 lfo1; mso-list-change: SGuy 20030510T1452"><![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'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">屏幕空间中的视区，渲染将被限制在该区域内。<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN-LEFT: 36pt; TEXT-INDENT: -18pt; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; tab-stops: list 36.0pt; mso-list: l4 level1 lfo1; mso-list-change: SGuy 20030510T1452"><![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'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-fareast-language: ZH-CN">渲染目标表面的深度值范围（通常是<SPAN
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -