ryujinx/Opentk
1
0
Fork 0
mirror of https://github.com/Ryujinx/Opentk.git synced 2024-12-25 06:55:34 +00:00
Code Issues Packages Projects Releases Wiki Activity
Opentk/Source/Bind/Specifications/Docs/glRotate.xml
the_fiddler f918720afd Added support for inline OpenGL documentation.
2009-03-08 00:46:58 +00:00

419 lines
21 KiB
XML
Raw Blame History

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
<refentry id="glRotate">
<refmeta>
<refmetainfo>
<copyright>
<year>1991-2006</year>
<holder>Silicon Graphics, Inc.</holder>
</copyright>
</refmetainfo>
<refentrytitle>glRotate</refentrytitle>
<manvolnum>3G</manvolnum>
</refmeta>
<refnamediv>
<refname>glRotate</refname>
<refpurpose>multiply the current matrix by a rotation matrix</refpurpose>
</refnamediv>
<refsynopsisdiv><title>C Specification</title>
<funcsynopsis>
<funcprototype>
<funcdef>void <function>glRotated</function></funcdef>
<paramdef>GLdouble <parameter>angle</parameter></paramdef>
<paramdef>GLdouble <parameter>x</parameter></paramdef>
<paramdef>GLdouble <parameter>y</parameter></paramdef>
<paramdef>GLdouble <parameter>z</parameter></paramdef>
</funcprototype>
</funcsynopsis>
<funcsynopsis>
<funcprototype>
<funcdef>void <function>glRotatef</function></funcdef>
<paramdef>GLfloat <parameter>angle</parameter></paramdef>
<paramdef>GLfloat <parameter>x</parameter></paramdef>
<paramdef>GLfloat <parameter>y</parameter></paramdef>
<paramdef>GLfloat <parameter>z</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<!-- eqn: ignoring delim $$ -->
<refsect1 id="parameters"><title>Parameters</title>
<variablelist>
<varlistentry>
<term><parameter>angle</parameter></term>
<listitem>
<para>
Specifies the angle of rotation, in degrees.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>x</parameter></term>
<term><parameter>y</parameter></term>
<term><parameter>z</parameter></term>
<listitem>
<para>
Specify the <emphasis>x</emphasis>, <emphasis>y</emphasis>, and <emphasis>z</emphasis> coordinates of a vector, respectively.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="description"><title>Description</title>
<para>
<function>glRotate</function> produces a rotation of <parameter>angle</parameter> degrees around
the vector
<inlineequation><mml:math>
<!-- eqn: (x, y, z):-->
<mml:mfenced open="(" close=")">
<mml:mi mathvariant="italic">x</mml:mi>
<mml:mi mathvariant="italic">y</mml:mi>
<mml:mi mathvariant="italic">z</mml:mi>
</mml:mfenced>
</mml:math></inlineequation>.
The current matrix (see <citerefentry><refentrytitle>glMatrixMode</refentrytitle></citerefentry>) is multiplied by a rotation
matrix with the product
replacing the current matrix, as if <citerefentry><refentrytitle>glMultMatrix</refentrytitle></citerefentry> were called
with the following matrix as its argument:
</para>
<para>
<informalequation><mml:math>
<!-- eqn: left ( matrix { ccol { x sup 2 (1 - c) + c above y x (1 - c) + z s above x z (1 - c) - y s above 0 } ccol { x y (1 - c) - z s above y sup 2 (1 - c) + c above y z (1 - c) + x s above 0 } ccol { x z (1 - c) + y s above y z (1 - c) - x s above z sup 2 (1 - c) + c above 0 } ccol { 0 above 0 above 0 above 1} } right ):-->
<mml:mfenced open="(" close=")">
<mml:mtable>
<mml:mtr>
<mml:mtd>
<mml:mrow>
<mml:mrow>
<mml:msup><mml:mi mathvariant="italic">x</mml:mi>
<mml:mn>2</mml:mn>
</mml:msup>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mrow>
<mml:mn>1</mml:mn>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mfenced>
</mml:mrow>
<mml:mo>+</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mtd>
<mml:mtd>
<mml:mrow>
<mml:mi mathvariant="italic">x</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mrow>
<mml:mi mathvariant="italic">y</mml:mi>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mrow>
<mml:mn>1</mml:mn>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mfenced>
</mml:mrow>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">z</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mi mathvariant="italic">s</mml:mi>
</mml:mrow>
</mml:mtd>
<mml:mtd>
<mml:mrow>
<mml:mi mathvariant="italic">x</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mrow>
<mml:mi mathvariant="italic">z</mml:mi>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mrow>
<mml:mn>1</mml:mn>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mfenced>
</mml:mrow>
<mml:mo>+</mml:mo>
<mml:mi mathvariant="italic">y</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mi mathvariant="italic">s</mml:mi>
</mml:mrow>
</mml:mtd>
<mml:mtd>
<mml:mn>0</mml:mn>
</mml:mtd>
</mml:mtr>
<mml:mtr>
<mml:mtd>
<mml:mrow>
<mml:mi mathvariant="italic">y</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mrow>
<mml:mi mathvariant="italic">x</mml:mi>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mrow>
<mml:mn>1</mml:mn>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mfenced>
</mml:mrow>
<mml:mo>+</mml:mo>
<mml:mi mathvariant="italic">z</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mi mathvariant="italic">s</mml:mi>
</mml:mrow>
</mml:mtd>
<mml:mtd>
<mml:mrow>
<mml:mrow>
<mml:msup><mml:mi mathvariant="italic">y</mml:mi>
<mml:mn>2</mml:mn>
</mml:msup>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mrow>
<mml:mn>1</mml:mn>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mfenced>
</mml:mrow>
<mml:mo>+</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mtd>
<mml:mtd>
<mml:mrow>
<mml:mi mathvariant="italic">y</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mrow>
<mml:mi mathvariant="italic">z</mml:mi>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mrow>
<mml:mn>1</mml:mn>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mfenced>
</mml:mrow>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">x</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mi mathvariant="italic">s</mml:mi>
</mml:mrow>
</mml:mtd>
<mml:mtd>
<mml:mn>0</mml:mn>
</mml:mtd>
</mml:mtr>
<mml:mtr>
<mml:mtd>
<mml:mrow>
<mml:mi mathvariant="italic">x</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mrow>
<mml:mi mathvariant="italic">z</mml:mi>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mrow>
<mml:mn>1</mml:mn>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mfenced>
</mml:mrow>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">y</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mi mathvariant="italic">s</mml:mi>
</mml:mrow>
</mml:mtd>
<mml:mtd>
<mml:mrow>
<mml:mi mathvariant="italic">y</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mrow>
<mml:mi mathvariant="italic">z</mml:mi>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mrow>
<mml:mn>1</mml:mn>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mfenced>
</mml:mrow>
<mml:mo>+</mml:mo>
<mml:mi mathvariant="italic">x</mml:mi>
<mml:mo>&it;</mml:mo>
<mml:mi mathvariant="italic">s</mml:mi>
</mml:mrow>
</mml:mtd>
<mml:mtd>
<mml:mrow>
<mml:mrow>
<mml:msup><mml:mi mathvariant="italic">z</mml:mi>
<mml:mn>2</mml:mn>
</mml:msup>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mrow>
<mml:mn>1</mml:mn>
<mml:mo>-</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mfenced>
</mml:mrow>
<mml:mo>+</mml:mo>
<mml:mi mathvariant="italic">c</mml:mi>
</mml:mrow>
</mml:mtd>
<mml:mtd>
<mml:mn>0</mml:mn>
</mml:mtd>
</mml:mtr>
<mml:mtr>
<mml:mtd>
<mml:mn>0</mml:mn>
</mml:mtd>
<mml:mtd>
<mml:mn>0</mml:mn>
</mml:mtd>
<mml:mtd>
<mml:mn>0</mml:mn>
</mml:mtd>
<mml:mtd>
<mml:mn>1</mml:mn>
</mml:mtd>
</mml:mtr>
</mml:mtable>
</mml:mfenced>
</mml:math></informalequation>
</para>
<para>
</para>
<para>
Where
<inlineequation><mml:math>
<!-- eqn: c = cos (angle):-->
<mml:mrow>
<mml:mi mathvariant="italic">c</mml:mi>
<mml:mo>=</mml:mo>
<mml:mrow>
<mml:mi mathvariant="italic">cos</mml:mi>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mi mathvariant="italic">angle</mml:mi>
</mml:mfenced>
</mml:mrow>
</mml:mrow>
</mml:math></inlineequation>,
<inlineequation><mml:math>
<!-- eqn: s = sin (angle):-->
<mml:mrow>
<mml:mi mathvariant="italic">s</mml:mi>
<mml:mo>=</mml:mo>
<mml:mrow>
<mml:mi mathvariant="italic">sin</mml:mi>
<mml:mo>&af;</mml:mo>
<mml:mfenced open="(" close=")">
<mml:mi mathvariant="italic">angle</mml:mi>
</mml:mfenced>
</mml:mrow>
</mml:mrow>
</mml:math></inlineequation>,
and
<inlineequation><mml:math>
<!-- eqn: ||( x, y, z )|| = 1:-->
<mml:mrow>
<mml:mfenced open="&DoubleVerticalBar;" close="&DoubleVerticalBar;">
<mml:mfenced open="(" close=")">
<mml:mi mathvariant="italic">x</mml:mi>
<mml:mi mathvariant="italic">y</mml:mi>
<mml:mi mathvariant="italic">z</mml:mi>
</mml:mfenced>
</mml:mfenced>
<mml:mo>=</mml:mo>
<mml:mn>1</mml:mn>
</mml:mrow>
</mml:math></inlineequation>
(if not, the GL
will normalize this vector).
</para>
<para>
</para>
<para>
</para>
<para>
If the matrix mode is either <constant>GL_MODELVIEW</constant> or <constant>GL_PROJECTION</constant>,
all objects drawn after <function>glRotate</function> is called are rotated.
Use <citerefentry><refentrytitle>glPushMatrix</refentrytitle></citerefentry> and <citerefentry><refentrytitle>glPopMatrix</refentrytitle></citerefentry> to save and restore
the unrotated coordinate system.
</para>
</refsect1>
<refsect1 id="notes"><title>Notes</title>
<para>
This rotation follows the right-hand rule, so
if the vector
<inlineequation><mml:math>
<!-- eqn: (x, y, z):-->
<mml:mfenced open="(" close=")">
<mml:mi mathvariant="italic">x</mml:mi>
<mml:mi mathvariant="italic">y</mml:mi>
<mml:mi mathvariant="italic">z</mml:mi>
</mml:mfenced>
</mml:math></inlineequation>
points toward the
user, the rotation will be counterclockwise.
</para>
</refsect1>
<refsect1 id="errors"><title>Errors</title>
<para>
<constant>GL_INVALID_OPERATION</constant> is generated if <function>glRotate</function>
is executed between the execution of <citerefentry><refentrytitle>glBegin</refentrytitle></citerefentry>
and the corresponding execution of <citerefentry><refentrytitle>glEnd</refentrytitle></citerefentry>.
</para>
</refsect1>
<refsect1 id="associatedgets"><title>Associated Gets</title>
<para>
<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_MATRIX_MODE</constant>
</para>
<para>
<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_COLOR_MATRIX</constant>
</para>
<para>
<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_MODELVIEW_MATRIX</constant>
</para>
<para>
<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_PROJECTION_MATRIX</constant>
</para>
<para>
<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_TEXTURE_MATRIX</constant>
</para>
</refsect1>
<refsect1 id="seealso"><title>See Also</title>
<para>
<citerefentry><refentrytitle>glMatrixMode</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glMultMatrix</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glPushMatrix</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glScale</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glTranslate</refentrytitle></citerefentry>
</para>
</refsect1>
<refsect1 id="Copyright"><title>Copyright</title>
<para>
Copyright <trademark class="copyright"></trademark> 1991-2006
Silicon Graphics, Inc. This document is licensed under the SGI
Free Software B License. For details, see
<ulink url="http://oss.sgi.com/projects/FreeB/">http://oss.sgi.com/projects/FreeB/</ulink>.
</para>
</refsect1>
</refentry>
Reference in a new issue View git blame Copy permalink