GlRotatef: Difference between revisions

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(Created page with "{{DISPLAYTITLE:_glRotatef}} The '''_glRotatef''' statement multiplies the current matrix by a rotation matrix. {{PageSyntax}} : '''_glRotatef''' GLfloat {{Parameter|angle}}, GLfloat {{Parameter|x}}, GLfloat {{Parameter|y}}, GLfloat {{Parameter|z}} {{PageParameters}} * OpenGL is using its own set of variable types to describe its command parameters. * Use the following table to find the respective QB64 Variable Types. {{OpenGLTypesPlugin}} {{PageDescription}} *...")
 
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{{PageSyntax}}
{{PageSyntax}}
: '''_glRotatef''' GLfloat {{Parameter|angle}}, GLfloat {{Parameter|x}}, GLfloat {{Parameter|y}}, GLfloat {{Parameter|z}}
: [[_glRotatef]] GLfloat {{Parameter|angle}}, GLfloat {{Parameter|x}}, GLfloat {{Parameter|y}}, GLfloat {{Parameter|z}}




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{{PageDescription}}
{{PageDescription}}
* OpenGL's documentation is available in several places, so we won't reproduce it here for another time.
* OpenGL's documentation is available in several places, so we won't reproduce it here for another time.
* The full description for this command can be found at [https://docs.microsoft.com/en-us/windows/win32/opengl/glrotatef Microsoft Docs] and is also valid for QB64 usage.
* The full description for this command can be found at [https://learn.microsoft.com/en-us/windows/win32/opengl/glrotatef Microsoft Docs] and is also valid for QB64 usage.




{{PageSeeAlso}}
{{PageSeeAlso}}
* [[_GL|SUB _GL]]
* [[_GL|SUB _GL]]
* [[_glBegin]], [[_glEnd]], [[_glMatrixMode]], [https://docs.microsoft.com/en-us/windows/win32/opengl/glmultmatrix _glMultMatrix]
* [[_glBegin]], [[_glEnd]], [[_glMatrixMode]], [https://learn.microsoft.com/en-us/windows/win32/opengl/glmultmatrix _glMultMatrix]
* [[_glPopMatrix]], [[_glPushMatrix]], [https://docs.microsoft.com/en-us/windows/win32/opengl/glscale _glScale], [https://docs.microsoft.com/en-us/windows/win32/opengl/gltranslate _glTranslate]
* [[_glPopMatrix]], [[_glPushMatrix]], [https://learn.microsoft.com/en-us/windows/win32/opengl/glscale _glScale], [https://learn.microsoft.com/en-us/windows/win32/opengl/gltranslate _glTranslate]




{{PageNavigation}}
{{PageNavigation}}
[[Category:Final]]

Latest revision as of 01:36, 28 January 2023

The _glRotatef statement multiplies the current matrix by a rotation matrix.


Syntax

_glRotatef GLfloat angle, GLfloat x, GLfloat y, GLfloat z


Parameters

  • OpenGL is using its own set of variable types to describe its command parameters.
  • Use the following table to find the respective QB64 Variable Types.
   Table 2: Relations between the OpenGL variable types vs. C/C++ and QB64.
 ┌──────────────┬────────────────┬──────────────────────────────────────────┐
 │    OpenGL    │     C/C++      │     QB64                                 │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLenum       │ unsigned int   │ _UNSIGNED LONG                           │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLboolean    │ unsigned char  │ _UNSIGNED _BYTE                          │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLbitfield   │ unsigned int   │ _UNSIGNED LONG                           │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLbyte       │ signed char    │ _BYTE                                    │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLshort      │ short          │ INTEGER                                  │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLint        │ int            │ LONG                                     │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLsizei      │ int            │ LONG                                     │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLubyte      │ unsigned char  │ _UNSIGNED _BYTE                          │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLushort     │ unsigned short │ _UNSIGNED INTEGER                        │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLuint       │ unsigned int   │ _UNSIGNED LONG                           │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLfloat      │ float          │ SINGLE                                   │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLclampf     │ float          │ SINGLE                                   │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLdouble     │ double         │ DOUBLE                                   │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLclampd     │ double         │ DOUBLE                                   │
 ├──────────────┼────────────────┼──────────────────────────────────────────┤
 │ GLvoid   (1) │ void           │ _OFFSET(any fixed lenght string or _BYTE │
 │              │                │         array element)                   │
 └──────────────┴────────────────┴──────────────────────────────────────────┘
 Note: If a parameter has an asterisk (*) in front, then it's a pointer to
       the designated OpenGL variable type, rather than a value of that type.
       Those must be passed using the _OFFSET(...) notation.

 E.g.  GLuint *anyParam is actually the offset of a _UNSIGNED LONG (~&)
       variable or array, which must be passed as _OFFSET(anyVar~&) or
       _OFFSET(anyArr~&()) respectively.

  (1)  This type is regularly only used for pointers (with asterisk (*)) to
       any byte sized memory data, hence _BYTE or fixed length strings.


Description

  • OpenGL's documentation is available in several places, so we won't reproduce it here for another time.
  • The full description for this command can be found at Microsoft Docs and is also valid for QB64 usage.


See also


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Keyword Reference - By usage
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