How can I draw multiple(10000) cubes in the bevy game engine for my 3D voxel game?

When i create a 100 x 100 chunk of cubes in bevy it is only able to maintain like 10 fps.
Even if i replace the cubes with something more simple like planes i dont get any better performance out of it.
I benchmarked it with mangohud and it says, that my cpu and gpu are only sitting at about 20% usage.

Here is the code I use to generate a 32 x 32 chunk with OpenSimplex noise

    commands: &mut Commands,      mut meshes: ResMut<Assets<Mesh>>,      mut materials: ResMut<Assets<StandardMaterial>>,      asset_server: Res<AssetServer>,      seed: Res<Seed>,  ) {      let noise = OpenSimplex::new();        commands          .spawn(PbrBundle {              mesh: meshes.add(Mesh::from(shape::Plane{ size: 1.0 })),              material: materials.add(Color::rgb(0.5, 0.5, 1.0).into()),              transform: Transform::from_translation(Vec3::new(0.0, 0.0, 0.0)),              ..Default::default()          })          .with(Chunk)          .with_children(|parent| {            let texture_handle = asset_server.load("textures/dirt.png");                for x in -32 .. 32 {              for z in -32 .. 32 {                  let y = (noise.get([                      ( x as f32 / 20. ) as f64,                       ( z as f32 / 20. ) as f64,                      seed.value,                  ]) * 15. + 16.0) as u32;                      parent                      .spawn(PbrBundle {                          mesh: meshes.add(Mesh::from(shape::Cube{ size: 1.0 })),                          material: materials.add(StandardMaterial { albedo: Color::rgba(1.0, 1.0, 1.0, 1.0), albedo_texture: Some(texture_handle.clone()), ..Default::default() }),                          transform: Transform::from_translation(Vec3::new(x as f32, y as f32, z as f32)),                          ..Default::default()                      })                  .with(Cube);              }          }      });  }  

But 32 x 32 is the absolute maximum for a playable experience. What do I have to do, to be able to draw multiple chunks at the same time?

System specs:
cpu: Intel Core i7-6820HQ CPU @ 2.70GHz
igpu:Intel HD Graphics 530
dgpu: Nvidia Quadro M2000M

But when offloading to the more powerfull dgpu I dont get any better performance.

https://stackoverflow.com/questions/66609344/how-can-i-draw-multiple10000-cubes-in-the-bevy-game-engine-for-my-3d-voxel-gam March 13, 2021 at 09:40AM