How to generate massive mountain ranges with terrain

I have this game on roblox called “Caleum mountain resort”. It uses some super large meshes that make the mountains be visible. However, players dont collide with them, and if you want to build something underground… you can’t without the mesh clipping trough. Is there a way to generate terrain like this? i tried the infinite terrain pluggin, but it only generates terrain horizontally with small mountains, and the terrain is just a thin layer. This is what the game looks like, and what i would like to achieve using terrain:


if the terrain option is not possible, is there any other alternative to make people able to collide with the mountains themselves? i did place actual meshparts where players would roam, but it does not really do the job on bigger areas

Your problem is because the mountains aren’t truly MeshParts but rather a small part with a SpecialMesh inside of it.

SpecialMeshes are notorious for having no custom collision and are way less optimized than actual MeshParts.

I’d recommend to stop using SpecialMeshes entirely and use their Part counterpart.

Here’s a post that I think will help!
MeshPart Usage, Performance & Optimizations - Resources / Community Tutorials - Developer Forum | Roblox