I’m building a huge forest in my game, where there will be a lot of trees. For the trees that are far away, I was planning on using billboard GUI, but I don’t know if it is better than a very low poly model with 4 triangles.
Im not the most familiar with billboard GUI’s but I think meshes would be more optimal because there are already plenty of games that run smoothly with lots of meshes over 4 tris so if you are going to have a very dense forest, it wouldn’t be that laggy
Impostors in LOD is a common technique, and honestly I don’t know why you’d want to use a super low quality mesh over an impostor. I get where you’re coming from, but unless you had some custom lighting system that would look wrong at a distance with images, you’d be just fine with a billboard GUI. I’d be surprised if Roblox managed to miss being “industry standard” when replacing distant meshes with flat images at mass.
I could also be wrong and have no idea how well the engine handles meshes over images, but I’m basing this off of actual games that were made with engines like Unreal or Unity.
My main concern is that it will not handle well a lot of images. I remember back when MaterialService wasn’t a thing I would use a bunch of Textures to have more materials, and it was a lag mess.
But as you said, it would be surprising if roblox missed that nowadays. I guess I’m gonna do some tests before making a final decision.