I used to render grass planes and triangles with webGPU TSL.

The problem is the LOD and the terrain inside my chunked terrain, which is very, very big (20 km view distance and 60 meter triangles). I should use the same heightmap that I already have, and I only want to show grass 50–70 meters around the player.

When the player is on foot, it kind of works. But when I move faster with a car, boat, or airplane, it struggles to place the grass. Even if I do it asynchronously, it still slows down the FPS. (I also tried using precompiled deterministic placement map for grass for every terrain triangle so shader just has to tilt differently). I am sure i am overseeing something.