Combining Vertex Buffers Using Different Textures - 3D Optimizations in GameMaker

Combining vertex buffers is easy, but how can you combine different vertex buffers that use different textures? Here's how! This optimization is a lot more work than most of the other ones I've covered, and it's not something that will be applicable to every game. Only do this if you've already made use of the other optimizations, and make sure to test your game to make sure it actually speeds things up. Here's the repository where I'll be putting the demo code: https://github.com/DragoniteSpam-GameMaker-Tutorials/3DOptimizationDemos The original combining meshes video: https://youtu.be/PJwsJN-ZPxY Sprite atlasing in GameMaker: https://www.youtube.com/playlist?list=PL_hT--4HOvrfrOCeIKBomjyV8P2t9x7O9 Recycling matrices: https://youtu.be/try2RX4IVlQ sphere_is_visible: https://youtu.be/-MeNNAVrCjI How many trees are in Skyrim? https://www.youtube.com/watch?v=35yfu2wXmto 3D optimization playlist: https://www.youtube.com/playlist?list=PL_hT--4HOvrf_CJSA7fVU1tkjGVv5Sq2t The tree model: https://opengameart.org/content/old-oak-tree 0:00 Introduction 0:48 Why it took me five years to make this video 6:06 Combining the trees the old way 9:59 Sprite atlasing 16:12 Modifying our combine code to use the sprite atlas 23:40 This system has some shortcomings 25:26 How does this compare to boring old visibility culling (in this example)? 28:41 Combining permutations of individual trees 38:24 The end #gamemaker3d #GameMaker3DOptimization - - - - - I've now made that Patreon: https://www.patreon.com/wizardragon That promised social media link spam. https://twitter.com/DragoniteSpam Transition / idle music is by my old friend Kamex: https://www.youtube.com/user/GreatGabite/about Rate, comment, subscribe, watch more, enjoy!