polygonmode.html

J2ME Mobile3D API,高性能手机3D开发的api

 <li>shading : <code>SHADE_SMOOTH</code></li>
 <li>two-sided lighting: <i>false</i> (disabled)</li>
 <li>local camera lighting : <i>false</i> (disabled)</li>
 <li>perspective correction : <i>false</i> (disabled)</li>
 </ul>
<P>
</DL>

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<B>Method Detail</B></FONT></TD>
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<A NAME="setCulling(int)"><!-- --></A><H3>
setCulling</H3>
<PRE>
public void <B>setCulling</B>(int&nbsp;mode)</PRE>
<DL>
<DD><p>Sets the polygon culling mode. The culling mode defines which sides
 of a polygon are culled (that is, not rendered). The winding mode, on
 the other hand, defines which side is considered to be the front. See
 the class description for more information.</p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mode</CODE> - the culling mode to set: back, front or none
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if <code>mode</code> is not one of
         <code>CULL_BACK, CULL_FRONT, CULL_NONE</code><DT><B>See Also:</B><DD><A HREF="../../../javax/microedition/m3g/PolygonMode.html#getCulling()"><CODE>getCulling</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getCulling()"><!-- --></A><H3>
getCulling</H3>
<PRE>
public int <B>getCulling</B>()</PRE>
<DL>
<DD><p>Retrieves the current polygon culling mode.</p>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the current culling mode; one of the symbolic constants<DT><B>See Also:</B><DD><A HREF="../../../javax/microedition/m3g/PolygonMode.html#setCulling(int)"><CODE>setCulling</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setWinding(int)"><!-- --></A><H3>
setWinding</H3>
<PRE>
public void <B>setWinding</B>(int&nbsp;mode)</PRE>
<DL>
<DD><p>Sets the polygon winding mode to clockwise or counter-clockwise.
 The winding mode defines which side of a polygon is considered to be
 the front. This and the culling mode together determine which sides
 of a polygon are rendered. The winding mode has consequences on
 lighting, as well, if two-sided lighting is enabled. See the class
 description for more information.</p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mode</CODE> - the winding mode to set: clockwise or counter-clockwise
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if <code>mode</code> is not one of
         <code>WINDING_CCW, WINDING_CW</code><DT><B>See Also:</B><DD><A HREF="../../../javax/microedition/m3g/PolygonMode.html#getWinding()"><CODE>getWinding</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getWinding()"><!-- --></A><H3>
getWinding</H3>
<PRE>
public int <B>getWinding</B>()</PRE>
<DL>
<DD><p>Retrieves the current polygon winding mode.</p>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the current winding mode; one of the symbolic constants<DT><B>See Also:</B><DD><A HREF="../../../javax/microedition/m3g/PolygonMode.html#setWinding(int)"><CODE>setWinding</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setShading(int)"><!-- --></A><H3>
setShading</H3>
<PRE>
public void <B>setShading</B>(int&nbsp;mode)</PRE>
<DL>
<DD><p>Sets the polygon shading mode. The shading mode defines whether a
 single color is assigned to the whole polygon (flat shading) or if a
 color is computed separately for each pixel (smooth shading). See the
 class description for more information.</p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>mode</CODE> - the shading mode to set: flat or smooth
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if <code>mode</code> is not one of
         <code>SHADE_FLAT, SHADE_SMOOTH</code><DT><B>See Also:</B><DD><A HREF="../../../javax/microedition/m3g/PolygonMode.html#getShading()"><CODE>getShading</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getShading()"><!-- --></A><H3>
getShading</H3>
<PRE>
public int <B>getShading</B>()</PRE>
<DL>
<DD><p>Retrieves the current polygon shading mode.</p>
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the current shading mode: flat or smooth<DT><B>See Also:</B><DD><A HREF="../../../javax/microedition/m3g/PolygonMode.html#setShading(int)"><CODE>setShading</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setTwoSidedLightingEnable(boolean)"><!-- --></A><H3>
setTwoSidedLightingEnable</H3>
<PRE>
public void <B>setTwoSidedLightingEnable</B>(boolean&nbsp;enable)</PRE>
<DL>
<DD><p>Enables or disables two-sided lighting. If two-sided lighting is
 enabled, the lit colors for the front and back faces of a polygon
 are computed differently. Otherwise, both faces are assigned the
 same color. See the class description for more information.</p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>enable</CODE> - <i>true</i> to enable two-sided lighting;
        <i>false</i> to use one-sided lighting<DT><B>See Also:</B><DD><A HREF="../../../javax/microedition/m3g/PolygonMode.html#isTwoSidedLightingEnabled()"><CODE>isTwoSidedLightingEnabled</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="isTwoSidedLightingEnabled()"><!-- --></A><H3>
isTwoSidedLightingEnabled</H3>
<PRE>
public boolean <B>isTwoSidedLightingEnabled</B>()</PRE>
<DL>
<DD><p>Queries whether two-sided lighting is enabled.</p>
<P>
<DD><DL>

<DT><B>Returns:</B><DD><i>true</i> if two-sided lighting is enabled;
         <i>false</i> if not<DT><B>See Also:</B><DD><A HREF="../../../javax/microedition/m3g/PolygonMode.html#setTwoSidedLightingEnable(boolean)"><CODE>setTwoSidedLightingEnable</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setLocalCameraLightingEnable(boolean)"><!-- --></A><H3>
setLocalCameraLightingEnable</H3>
<PRE>
public void <B>setLocalCameraLightingEnable</B>(boolean&nbsp;enable)</PRE>
<DL>
<DD><p>Enables or disables local camera lighting. Note that this is only
 a hint: the implementation may or may not obey it. See the class
 description for further discussion on local camera lighting.</p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>enable</CODE> - <i>true</i> to enable local camera lighting;
        <i>false</i> to disable it</DL>
</DD>
</DL>
<HR>

<A NAME="setPerspectiveCorrectionEnable(boolean)"><!-- --></A><H3>
setPerspectiveCorrectionEnable</H3>
<PRE>
public void <B>setPerspectiveCorrectionEnable</B>(boolean&nbsp;enable)</PRE>
<DL>
<DD><p>Enables or disables perspective correction. Note that this is only
 a hint: the implementation may or may not obey it. See the class
 description for further discussion on perspective correction.</p>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>enable</CODE> - <i>true</i> to enable perspective correction;
        <i>false</i> to disable it</DL>
</DD>
</DL>
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<EM><B>Nov 19, 2003</B></EM></EM>
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