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simplex noise

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a dinosaur
2024-08-29 03:56:54 +10:00
parent f95be3f5f4
commit c5dd2caf48
5 changed files with 260 additions and 10 deletions
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11
Sources/Voxelotl/Random/PerlinNoiseGenerator.swift
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@ -1,10 +1,15 @@
import Foundation
public struct ImprovedPerlin<T: BinaryFloatingPoint & SIMDScalar> {
private let p: [Int32]
public struct ImprovedPerlin<T: BinaryFloatingPoint & SIMDScalar>: CoherentNoise3D {
private let p: [Int16]
public init(permutation: [Int16]) {
assert(permutation.count == 0x100)
self.p = permutation
}
public init(random: inout any RandomProvider) {
self.p = (0..<0x100).map { Int32($0) }.shuffled(using: &random)
self.p = (0..<0x100).map { Int16($0) }.shuffled(using: &random)
}
public func get(_ point: SIMD3<T>) -> T {