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Diederick Niehorster 2014-06-02 21:25:37 +08:00
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freeglut/web-src/docs/api.php
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@ -200,6 +200,8 @@ will thus not work with the currently available 2.8.1 release.
<li>glutWireRhombicDodecahedron, glutSolidRhombicDodecahedron</li>
<li>glutWireTeapot, glutSolidTeapot, glutWireTeacup,
glutSolidTeacup, glutWireTeaspoon, glutSolidTeaspoon</li>
<li>glutSetVertexAttribCoord3, glutSetVertexAttribNormal,
glutSetVertexAttribTexCoord2</li>
</ol>
</li>
<li><a href="#GameMode">Game Mode Functions</a>
@ -378,10 +380,10 @@ of the new callbacks are listed in the GLUT Version 4 "glut.h" header file
but did not make it into the documentation. The new callbacks consist
of regular and special key release callbacks, a joystick callback, a menu
state callback (with one argument, distinct from the menu status callback
which has three arguments), and a window status callback
(also with one argument). Unsupported callbacks are the two Tablet
callbacks. If the user has a need for an unsupported callback he should
contact the <i>freeglut</i> development team.
which has three arguments), a window status callback (also with one
argument), and a window position callback. Unsupported callbacks are
the two Tablet callbacks. If the user has a need for an unsupported
callback he should contact the <i>freeglut</i> development team.
</p>
<h3>3.4.5 String Rendering</h3>
@ -397,7 +399,17 @@ pixels for bitmapped fonts and in OpenGL units for the stroke fonts.
<p>
Two functions have been added to render a wireframe and a solid rhombic
dodecahedron.
dodecahedron. Furthermore, solid and wireframe versions of the original
teacup and teaspoon that accompanied the famous Newell teapot. As these
geometry functions are often used for teaching purposes,
<tt>glutSetOption(GLUT_GEOMETRY_VISUALIZE_NORMALS,true/false)</tt> can
now be used to visualize the normal vectors for each vertex. Lastly, to
support drawing these objects with shaders, three functions have been
added with which users can provide the addresses of the Coordinate,
Normal and Texture Coordinate vertex attribs:
<tt>glutSetVertexAttribCoord3</tt>, <tt>glutSetVertexAttribNormal</tt>,
and <tt>glutSetVertexAttribTexCoord2</tt>. Texture coordinates are only
generated for the teaset.
</p>
<h3>3.4.7 Extension Function Queries</h3>
@ -481,8 +493,8 @@ glutInitDisplayString support is limited: any of the tokens recognized
by GLUT are also recognized by <i>FreeGLUT</i>, but any statements with
comparators cannot (yet: do <a href="../help.php">help develop
this!</a>) be handled. Any spec (comparator and value) after the token
is ignored. Many of these values can however be set with glutSetOption
for now however...
is ignored. However, many of these values can be set with glutSetOption
for now...
</p>
<h2>4.5 glutInitErrorFunc, glutInitWarningFunc</h2>
@ -955,7 +967,11 @@ callback; programs with multiple windows or menus must explicitly set the
The amount of computation and rendering done in an idle
callback should be minimized to avoid affecting the program's interactive
response. In general, no more than a single frame of rendering should
be done in a single invocation of an idle callback. <br/>
be done in a single invocation of an idle callback. Note that no actual
drawing to the framebuffer should be done from the idle callback, this
is not supported. While it might work on some platforms, it will not on
others or might stop working in the future. Drawing should be done in
the <tt>glutDisplayFunc</tt> callback.<br/>
Calling <tt>glutIdleFunc</tt> with a NULL argument
disables the call to an idle callback.
</p>
@ -994,7 +1010,7 @@ repositioned/moved programatically or by the user.
<p><b>Usage</b></p>
<p><tt>void glutPositionFunc ( void
(* callback)( int x, int y) );</tt></p>
(* func)( int x, int y) );</tt></p>
<p><b>Description</b></p>
@ -2022,7 +2038,7 @@ are designed such that all characters have (nominally) the same height. </p>
<h1>15. <a name="GeometricObject"></a>Geometric Object Rendering Functions</h1>
<p>
<i>Freeglut</i> includes eighteen routines for generating
<i>Freeglut</i> includes twenty two routines for generating
easily-recognizable 3-d geometric objects. These routines are
effectively the same ones that are included in the GLUT library, and
reflect the functionality available in the <i>aux</i> toolkit described
@ -2036,7 +2052,10 @@ note that depth testing (GL_LESS) should be enabled for the correct
drawing of the nonconvex objects, i.e., the glutTorus,
glutSierpinskiSponge, glutTeapot, glutTeacup and glutTeaspoon.<br>
Also see the <tt>GLUT_GEOMETRY_VISUALIZE_NORMALS</tt> option that can be
set with <tt>glutSetOption</tt>.
set with <tt>glutSetOption</tt>. Lastly, see
<tt>glutSetVertexAttribCoord3</tt>, <tt>glutSetVertexAttribNormal</tt>,
and <tt>glutSetVertexAttribTexCoord2</tt> if you wish to use these
objects with shaders.
</p>
<h2>15.1 glutWireSphere, glutSolidSphere</h2>
@ -2395,6 +2414,32 @@ should use:</p>
<p>GLUT only has the teapot and misses the rest of the teaset. </p>
<h2>15.12 glutSetVertexAttribCoord3, glutSetVertexAttribNormal, glutSetVertexAttribTexCoord2</h2>
<p>
To draw shapes with shaders (OpenGL 2 and later), one need to upload
vertices and associated normal vectors and texture coordinates to
vertex attributes of your shaders. Use these functions to set the
indices (addresses) of the vertex attributes in your currently active
shaders before calling the above geometry functions, and <i>FreeGLUT</i>
will upload the object geometry there. Texture coordinates are only
generated for the teapot, teacup and teaspoon.
</p>
<p><b>Definition</b></p>
<p><tt>
void glutSetVertexAttribCoord3&nbsp;&nbsp;&nbsp;(GLint attrib);<br>
void glutSetVertexAttribNormal&nbsp;&nbsp;&nbsp;(GLint attrib);<br>
void glutSetVertexAttribTexCoord2(GLint attrib);</tt></p>
<p><b>Arguments</b></p>
<p><tt>attrib&nbsp;&nbsp;</tt>The index (address) of the vertex
attribute</p>
<p><b>Changes From GLUT</b></p>
<p>GLUT does not include these functions.</p>
<h1>16. <a name="GameMode"></a>Game Mode Functions</h1>
<h2>16.1 glutGameModeString</h2>
@ -2485,16 +2530,16 @@ glutStopVideoResizing</h2>
<h2>18.2 glutCopyColormap</h2>
<h1><a name="MultiTouch"></a>MultiTouch Functions</h1>
<h1>19. <a name="MultiTouch"></a>MultiTouch Functions</h1>
MultiTouch callbacks are used to handle environments with multiple
inputs, such as a multi-touch screen, multi-touch touchpad, or
multiple mouses.<br />
<h2>glutMultiEntryFunc &larr; id, GLUT_ENTERED|GLUT_LEFT</h2>
<h2>glutMultiButtonFunc &larr; id, x, y, button, GLUT_DOWN|GLUT_UP</h2>
<h2>glutMultiMotionFunc &larr; id, x, y</h2>
<h2>glutMultiPassiveFunc &larr; id, x, y</h2>
<h2>19.1 glutMultiEntryFunc &larr; id, GLUT_ENTERED|GLUT_LEFT</h2>
<h2>19.2 glutMultiButtonFunc &larr; id, x, y, button, GLUT_DOWN|GLUT_UP</h2>
<h2>19.3 glutMultiMotionFunc &larr; id, x, y</h2>
<h2>19.4 glutMultiPassiveFunc &larr; id, x, y</h2>
These functions work like their non-multi variants, with an additional
'deviceid' parameter describing the current input device (mouse or
@ -2532,7 +2577,7 @@ desirable to get the device id as well in the following situations:
<a href="http://sourceforge.net/mailarchive/forum.php?thread_name=20120518071314.GA28061%40perso.beuc.net&forum_name=freeglut-developer">considering</a>
whether/how to implement it.</p>
<h1><a name="Mobile"></a>Mobile Functions</h1>
<h1>20. <a name="Mobile"></a>Mobile Functions</h1>
<p>These new callbacks were added:</p>
@ -2556,9 +2601,9 @@ the <a href="android.php">Android page</a>.</li>
<li>BlackBerry 10/BlackBerry PlayBook</li>
</ul>
<h1>19. <a name="Miscellaneous"></a>Miscellaneous Functions</h1>
<h1>21. <a name="Miscellaneous"></a>Miscellaneous Functions</h1>
<h2>19.1 glutSetKeyRepeat, glutIgnoreKeyRepeat</h2>
<h2>21.1 glutSetKeyRepeat, glutIgnoreKeyRepeat</h2>
<p>
The <tt>glutSetKeyRepeat</tt> and <tt>glutIgnoreKeyRepeat</tt> functions
@ -2598,11 +2643,11 @@ the windows for which you don't want it.</p>
<tt>glutSetKeyRepeat</tt>, but <i>FreeGLUT</i>'s behavior should conform on all
platforms to GLUT's behavior on X11.</p>
<h2>19.2 glutForceJoystickFunc</h2>
<h2>21.2 glutForceJoystickFunc</h2>
<h2>19.3 glutReportErrors</h2>
<h2>21.3 glutReportErrors</h2>
<h1>20. <a name="UsageNotes"></a>Usage Notes</h1>
<h1>22. <a name="UsageNotes"></a>Usage Notes</h1>
<p> The following environment variables
are recognized by <i>freeglut</i>:
@ -2622,16 +2667,16 @@ Furthermore, on windows, there is a resource file identifier GLUT_ICON
that you can specify for your executable file. It specifies the icon
that goes in the upper left-hand corner of the <i>freeglut</i> windows.
Your application's resource file should contain the line:<br>
<tt>GLUT_ICON ICON DISCARDABLE "icon.ico"</tt><br>, where
<tt>GLUT_ICON ICON DISCARDABLE "icon.ico"</tt><br> where
icon.ico is the filename of your icon. The One demo includes such an
icon as an example.
</p>
<h1>21. <a name="ImplementationNotes"></a>Implementation Notes</h1>
<h2>21.1 <a name="ImplementationNotes"></a>Implementation Notes</h2>
<h1>22. <a name="GLUT_State"></a>GLUT State</h1>
<h2>21.2 <a name="GLUT_State"></a>GLUT State</h2>
<h1>23. <a name="Freeglut.h_Header"></a>"freeglut.h" Header File</h1>
<h2>21.3 <a name="Freeglut.h_Header"></a>"freeglut.h" Header File</h2>
<p>
Application programmers who are porting their GLUT programs to <i>freeglut</i> may continue
@ -2673,8 +2718,8 @@ if (glutGet(GLUT_VERSION) &lt; 20001) {
}
</pre>
<h1>24. <a name="References"></a>References</h1>
<h2>21.4 <a name="References"></a>References</h2>
<h1>25. <a name="Index"></a>Index</h1>
<h2>21.5 <a name="Index"></a>Index</h2>
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