Vertex Compression Tutorial 😍 | OpenGL Memory Optimization

Hey all! Vertex compression can reduce memory by ~85-90%, by packing your normal ~40 bytes of vertex data into a single 4 bytes using the bit shift operator. Hopefully this video is not too much of a slog, but I wanted to make sure I dive deep into the example to be clear on how it all worked! Here are some extra resources to help you out:

Explanation on the Bit Shift operator:

• https://www.geeksforgeeks.org/left-shift-right-shift-operators-c-cpp/

Source Code used here:

• https://github.com/Finding-Fortune/Minecraft-OpenGL-Open-Fork

This video explains the concept of Vertex Compression, although really doesn't explain the code at all:

• https://www.youtube.com/watch?v=VQuN1RMEr1c&t=180

0:00 Intro 0:10 What Most OpenGL Tutorials Do 1:06 In-Depth Compression Example 7:00 Vertex Compression in my Game Engine (C++ Side) 8:19 GLSL Shader code side of Vertex Compression 8:45 Considerations for Vertex Compression 10:31 Closing

Gaming / Montage Channel: @Seeking_Serendipity

#opengl #optimization #memory ... https://www.youtube.com/watch?v=d10MOYtNXB4