GLISTEXTURE(3G)

💅 GLISTEXTURE — the OpenGL 3G era, bestie

okay so this is one of those OpenGL manpage moments, and it lives in section 3G. grab a boba, we're checking if a name is actually a texture. ✨

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🌸 NAME

glIsTexture — figure out whether a name corresponds to a texture. that's it. that's the whole vibe check. 🫶

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✨ C SPECIFICATION

GLboolean glIsTexture(GLuint texture);

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🎀 PARAMETERS

• texture — some value that might be the name of a texture. might be. we're about to find out. 👀

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💖 DESCRIPTION

glIsTexture returns GL_TRUE if texture is currently the name of a texture. slay. 💅

but if texture is zero? GL_FALSE. if it's a non-zero value that isn't currently the name of a texture? GL_FALSE again bestie, sorry. if an error occurs? you guessed it — GL_FALSE. 😭 the function is lowkey committed to the "false" lifestyle in every other case.

and here's the tea 🍓: a name returned by glGenTextures(), but not yet associated with a texture by calling glBindTexture(), is not the name of a texture. like, it's giving "name on the list" but the texture hasn't shown up to the party yet. no bind, no texture, no GL_TRUE. periodt.

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👑 VERSION SUPPORT

the whole chart, but make it cute. this one's an absolute icon across the board — ✔ in every single OpenGL version listed:

1. OpenGL 2.0 — ✔
2. OpenGL 2.1 — ✔
3. OpenGL 3.0 — ✔
4. OpenGL 3.1 — ✔
5. OpenGL 3.2 — ✔
6. OpenGL 3.3 — ✔
7. OpenGL 4.0 — ✔
8. OpenGL 4.1 — ✔
9. OpenGL 4.2 — ✔
10. OpenGL 4.3 — ✔
11. OpenGL 4.4 — ✔
12. OpenGL 4.5 — ✔

function name: glIsTexture. twelve for twelve. ate and left no crumbs. 🔥

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🦋 SEE ALSO

• glBindTexture()
• glCopyTexImage1D()
• glCopyTexImage2D()
• glDeleteTextures()
• glGenTextures()
• glGet()
• glGetTexParameter()
• glTexImage1D()
• glTexImage2D()
• glTexImage3D()
• glTexParameter()

go read those if you want the full lore. iykyk. 💜

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🌈 COPYRIGHT

Copyright © 1991-2006 Silicon Graphics, Inc. Copyright © 2010-2014 Khronos Group. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/. 🧚

🌈 COPYRIGHT (yes, again 💀)

Copyright © 1991-2006 Silicon Graphics, Inc. Copyright © 2010-2014 Khronos Group

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okay bestie that's the whole page, and the official sign-off energy is: source stamped [FIXME: source], dated 08/09/2021, page GLISTEXTURE(3G). 🎀 go forth and check your textures responsibly. mwah. 💖