Uploaded May 2020 | Updated September 2026, 3 weeks ago

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Join the Discord: discord.gg/4tHeAkxNg7

In this tutorial, I give a simple way to set up a dirty flag system with our render batcher. This allows us to only rebuffer data that has changed, which should save some CPU time while rendering our batches. This also allows us to control how the data gets moved around everytime a value that we have interest in changes.

For a more complex example of a dirty flag system, Bob Nystrom has a great article here: gameprogrammingpatterns.com/dirty-flag.html

Source Code: github.com/codingminecraft/MarioYoutube/tree/1a150881a950cdf0e2f5367db8a903ca6c79b6d4

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Website: ambrosiogabe.github.io
Github: github.com/ambrosiogabe

Here are some books I recommend if you want to learn about game engine development more thoroughly. I do not profit off any of these sales, these are just some books that have helped me out :)

My Recommended Game Engine Books:
Game Engine Architecture: gameenginebook.com
Game Physics Cookbook (Read this before the next physics book): amazon.com/Game-Physics-Cookbook-Gabor-Szauer/dp/1787123669
Game Physics (Ian Millington): amazon.com/Game-Physics-Engine-Development-Commercial-Grade/dp/0123819768
Game Programming Patterns (Free): gameprogrammingpatterns.com

My Recommended Beginning Game Programming Books:
JavaScript Game Design: apress.com/gp/book/9781430247166

My Recommended Java Books:
Data Structures/Algorithms: amazon.com/Data-Structures-Algorithms-Java-6th-ebook/dp/B00JDRQF8C
LWJGL (Free, but I haven't read this thoroughly): lwjglgamedev.gitbooks.io/3d-game-development-with-lwjgl/content

Outro Music: bensound.com/royalty-free-music