GLFINISH(3G)

✨ GLFINISH(3G) ✨

okay bestie, so this is a page from the 3G manual section — the OpenGL one — and it's about glFinish. she's the "wait for it… wait for it…" girl of the GL world 💅

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🎀 NAME 🎀

glFinish — literally just block until all GL execution is complete 🫶

🌸 C SPECIFICATION 🌸

void glFinish( void )

no args, no return value, no drama. iconic behavior honestly ✨

💖 DESCRIPTION 💖

so glFinish does not return until the effects of all previously called GL commands are complete. like, she is not leaving the group chat until every single thing has actually happened. no cap.

and when we say "effects," we mean all of them, bestie:

• all changes to GL state
• all changes to connection state
• all changes to the frame buffer contents

all of it. every last one. she's thorough like that 💅

🔥 NOTES 🔥

glFinish requires a round trip to the server. yes, that kind of round trip — she's actually going there and coming back before she talks to you again, so don't expect her to be instant 🙈

💀 ERRORS 💀

GL_INVALID_OPERATION is generated if glFinish is executed between the execution of glBegin and the corresponding execution of glEnd.

so like… if you call her inside a glBegin/glEnd sandwich? nope. she will not be doing that. that's an error, bestie 😭 read the room.

🌈 SEE ALSO 🌈

• glFlush(3G) — her slightly more impatient sister 🦋

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tl;dr: she blocks. she waits. she does not return until everything is done. give her a sec and she'll slay 💖

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⭐ and that's the whole vibe check — this page lives in the 3G manual, titled GLFINISH(3G) at the top and signed off with GLFINISH(3G) at the bottom, brought to you by the source/version and date info that lives down there in the footer. mwah, go touch grass now 🌸🎀🧚