GlTexGenf: Difference between revisions
Jump to navigation
Jump to search
Navigation:
Main Page with Articles and Tutorials
Keyword Reference - Alphabetical
Keyword Reference - By usage
Report a broken link
m (Protected "GlTexGenf" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite))) |
No edit summary |
||
| (2 intermediate revisions by the same user not shown) | |||
| Line 4: | Line 4: | ||
{{PageSyntax}} | {{PageSyntax}} | ||
: | : [[_glTexGenf]] GLenum {{Parameter|coord}}, GLenum {{Parameter|pname}}, GLfloat {{Parameter|param}} | ||
| Line 15: | Line 15: | ||
{{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:// | * The full description for this command can be found at [https://learn.microsoft.com/en-us/windows/win32/opengl/gltexgenf Microsoft Docs] and is also valid for QB64 usage. | ||
| Line 21: | Line 21: | ||
* [[_GL|SUB _GL]] | * [[_GL|SUB _GL]] | ||
* [[_glBegin]], [[_glEnd]], [[_glCopyTexImage2D]], [[_glCopyTexSubImage2D]] | * [[_glBegin]], [[_glEnd]], [[_glCopyTexImage2D]], [[_glCopyTexSubImage2D]] | ||
* [https:// | * [https://learn.microsoft.com/en-us/windows/win32/opengl/glgettexgen _glGetTexGen], [[_glIsEnabled]], [https://learn.microsoft.com/en-us/windows/win32/opengl/gltexenv-functions _glTexEnv], [[_glTexImage1D]] | ||
* [https:// | * [https://learn.microsoft.com/en-us/windows/win32/opengl/gltexparameter-functions _glTexParameter], [[_glTexSubImage1D]], [[_glTexSubImage2D]] | ||
{{PageNavigation}} | {{PageNavigation}} | ||
Latest revision as of 01:48, 28 January 2023
The _glTexGenf statement controls the generation of texture coordinates.
Syntax
- _glTexGenf GLenum coord, GLenum pname, GLfloat param
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
- SUB _GL
- _glBegin, _glEnd, _glCopyTexImage2D, _glCopyTexSubImage2D
- _glGetTexGen, _glIsEnabled, _glTexEnv, _glTexImage1D
- _glTexParameter, _glTexSubImage1D, _glTexSubImage2D