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increase chunk size

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This commit is contained in:
shadow cat
2024-09-15 12:14:24 -04:00
parent 177d7c6379
commit 3d0267f775
4 changed files with 47 additions and 40 deletions
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9
src/client/render/voxel/ray_oct/compute.wgsl
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@@ -59,6 +59,9 @@ const FULL_ALPHA = 0.999;
const EPSILON = 0.00000000001;
const MAX_ITERS = 1000;
const MAX_DEPTH: u32 = 10;
const MAX_LENGTH: u32 = (1u << MAX_DEPTH);
fn trace_full(pos_view: vec4<f32>, dir_view: vec4<f32>) -> vec4<f32> {
let gi = 0;
let group = voxel_groups[gi];
@@ -124,11 +127,11 @@ fn trace_full(pos_view: vec4<f32>, dir_view: vec4<f32>) -> vec4<f32> {
let inv_dir_bits = 7 - dir_bits;
var node_start = 1u;
var scale = 7u;
var scale = MAX_DEPTH - 1;
var half_t_span = f32(1u << scale) * inc_t;
var t_center = t_min + half_t_span;
var color = vec4<f32>(0.0);
var parents = array<u32, 8>();
var parents = array<u32, MAX_DEPTH>();
var child = (u32(t > t_center.x) << 2) + (u32(t > t_center.y) << 1) + u32(t > t_center.z);
var child_pos = dir_to_vec(child);
@@ -162,7 +165,7 @@ fn trace_full(pos_view: vec4<f32>, dir_view: vec4<f32>) -> vec4<f32> {
if (child & move_dir) > 0 {
// calculate new scale; first differing bit after adding
let new_pos = vox_pos[axis] + (1u << scale);
if new_pos == 256 { break; }
if new_pos == MAX_LENGTH { break; }
let differing = vox_pos[axis] ^ new_pos;
vox_pos[axis] = new_pos;
scale = firstLeadingBit(differing);

2
src/client/render/voxel/ray_oct/layout.rs
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@@ -31,7 +31,7 @@ impl Layout {
"global lights",
3,
&[GlobalLight {
direction: Vector3::new(-0.5, -4.0, 2.0).normalize(),
direction: Vector3::new(-1.0, -2.0, 2.0).normalize(),
}],
);
let texture = StorageTexture::init(

5
src/common/component/chunk/mod.rs
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@@ -8,7 +8,8 @@ use bevy_derive::{Deref, DerefMut};
use bevy_ecs::{bundle::Bundle, component::Component, entity::Entity, system::Resource};
use nalgebra::Vector3;
pub const SIDE_LENGTH: usize = 16 * 16;
pub const SIDE_POW: u32 = 10;
pub const SIDE_LENGTH: usize = 2usize.pow(SIDE_POW);
pub const SHAPE: (usize, usize, usize) = (SIDE_LENGTH, SIDE_LENGTH, SIDE_LENGTH);
pub const DIMENSIONS: Vector3<usize> = Vector3::new(SIDE_LENGTH, SIDE_LENGTH, SIDE_LENGTH);
pub const LEN: usize = SHAPE.0 * SHAPE.1 * SHAPE.2;
@@ -25,7 +26,7 @@ impl ChunkData {
}
pub fn empty() -> Self {
Self {
data: OctTree::from_leaf(0, 8),
data: OctTree::from_leaf(0, SIDE_POW),
}
}
}

71
src/server/chunk/load.rs
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@@ -114,36 +114,37 @@ fn chunk_loader_main(channel: ThreadChannel<ServerChunkMsg, ChunkLoaderMsg>) {
let tree = ChunkData::from_tree(generate_tree(pos));
let tree_time = std::time::Instant::now() - start;
let start = std::time::Instant::now();
let mut data = generate(pos);
let data_time = std::time::Instant::now() - start;
let start = std::time::Instant::now();
let shape = s![
1..data.len_of(Axis(0)) - 1,
1..data.len_of(Axis(1)) - 1,
1..data.len_of(Axis(2)) - 1
];
let mut slice = data.slice_mut(shape);
let mut iter = tree.into_iter();
slice.assign(&Array3::from_shape_fn((256, 256, 256), |_| {
iter.next().unwrap()
}));
let convert_time = std::time::Instant::now() - start;
let start = std::time::Instant::now();
let mesh = ChunkMesh::from_data(data.map(|i| COLOR_MAP[*i as usize]).view());
let mesh_time = std::time::Instant::now() - start;
println!(
"data: {:<5?} mesh: {:<5?} convert: {:<5?} tree: {:<5?}",
data_time, mesh_time, convert_time, tree_time
);
// let start = std::time::Instant::now();
// let mut data = generate(pos);
// let data_time = std::time::Instant::now() - start;
//
// let start = std::time::Instant::now();
// let shape = s![
// 1..data.len_of(Axis(0)) - 1,
// 1..data.len_of(Axis(1)) - 1,
// 1..data.len_of(Axis(2)) - 1
// ];
// let mut slice = data.slice_mut(shape);
// let mut iter = tree.into_iter();
// slice.assign(&Array3::from_shape_fn(chunk::SHAPE, |_| {
// iter.next().unwrap()
// }));
// let convert_time = std::time::Instant::now() - start;
//
// let start = std::time::Instant::now();
// let mesh = ChunkMesh::from_data(data.map(|i| COLOR_MAP[*i as usize]).view());
// let mesh_time = std::time::Instant::now() - start;
//
// println!(
// "data: {:<5?} mesh: {:<5?} convert: {:<5?} tree: {:<5?}",
// data_time, mesh_time, convert_time, tree_time
// );
println!("gen time: {:<5?}", tree_time);
channel.send(ServerChunkMsg::ChunkGenerated(GeneratedChunk {
pos,
data: tree,
mesh,
mesh: ChunkMesh {},
}));
}
ChunkLoaderMsg::Exit => {
@@ -168,7 +169,9 @@ fn generate(pos: ChunkPos) -> Array3<u32> {
.with_seed(0)
.with_freq(0.005)
.generate();
Array3::from_shape_fn(shape, |(x, y, z)| generate_at(Vector3::new(x, y, z), posf, &noise))
Array3::from_shape_fn(shape, |(x, y, z)| {
generate_at(Vector3::new(x, y, z), posf, &noise)
})
}
fn generate_tree(pos: ChunkPos) -> OctTree {
@@ -179,24 +182,24 @@ fn generate_tree(pos: ChunkPos) -> OctTree {
let (noise, ..) =
NoiseBuilder::gradient_2d_offset(posf.x, chunk::SIDE_LENGTH, posf.z, chunk::SIDE_LENGTH)
.with_seed(0)
.with_freq(0.005)
.with_freq(0.01 / (chunk::SIDE_POW as f32))
.generate();
OctTree::from_fn_rec(&mut |p| generate_at(p, posf, &noise), 8)
OctTree::from_fn_rec(&mut |p| generate_at(p, posf, &noise), chunk::SIDE_POW)
}
fn generate_at(p: Vector3<usize>, posf: Vector3<f32>, noise: &[f32]) -> u32 {
// 0 air 1 stone 2 "sand" 3 water
let y = p.y as f32 + posf.y;
let (_a, b, c, d) = (0.0, 50.0, 100.0, 127.0);
let n = (noise[p.x + p.z * chunk::SIDE_LENGTH] + 0.022) * (1.0 / 0.044) * d;
if y < n.max(b) {
if y < b {
let [a, b, c] = [0.20, 0.35, 0.5].map(|f| chunk::SIDE_LENGTH as f32 * f);
let n = (noise[p.x + p.z * chunk::SIDE_LENGTH] + 0.022) * (1.0 / 0.044) * c;
if y < n.max(a) {
if y < a {
if y > n {
3
} else {
1
}
} else if y < c {
} else if y < b {
2
} else {
1