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voxel-rs
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Simplify block gen code path when all corners are empty

This commit is contained in:
Jarrod Doyle 2023-05-13 11:51:14 +01:00
parent 2f99b0ea4e
commit a29b4979ef
Signed by: Jayrude
GPG Key ID: 38B57B16E7C0ADF7
1 changed files with 20 additions and 16 deletions
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36
src/voxel/world.rs
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@ -39,25 +39,29 @@ impl Chunk {
}
}
let mut vals = [0.0f32; 512];
if block_sign != -8.0 {
// If all the corners are negative, then all the interpolated values
// will be negative too. In that case we can just fill with empty.
if block_sign == -8.0 {
block.resize(512, Voxel::Empty);
} else {
let mut vals = [0.0f32; 512];
math::tri_lerp_block(&noise_vals, &[8, 8, 8], &mut vals);
}
let mut idx = 0;
for z in 0..8 {
for y in 0..8 {
for x in 0..8 {
let val = vals[idx];
idx += 1;
let mut idx = 0;
for z in 0..8 {
for y in 0..8 {
for x in 0..8 {
let val = vals[idx];
idx += 1;
if val > 0.0 {
let r = ((x + 1) * 32 - 1) as u8;
let g = ((y + 1) * 32 - 1) as u8;
let b = ((z + 1) * 32 - 1) as u8;
block.push(Voxel::Color(r, g, b));
} else {
block.push(Voxel::Empty);
if val > 0.0 {
let r = ((x + 1) * 32 - 1) as u8;
let g = ((y + 1) * 32 - 1) as u8;
let b = ((z + 1) * 32 - 1) as u8;
block.push(Voxel::Color(r, g, b));
} else {
block.push(Voxel::Empty);
}
}
}
}