Matt54

import Foundation
import ModelIO
import simd

nonisolated func loadMeshWithModelIO(from url: URL) throws -> TriangleMesh {
    let asset = MDLAsset(url: url)
    
    guard asset.count > 0 else {
        throw NSError(domain: "ModelIO", code: 1, userInfo: [NSLocalizedDescriptionKey: "No objects found in file"])
    }

Matt54

import Foundation

enum EasingCurve {
    case linear
    case easeIn(Float)
    case easeOut(Float)
    case easeInOut(Float)

    func apply(_ t: Float) -> Float {
        let t = max(0, min(1, t))

Matt54

import Metal
import RealityKit
import SwiftUI

#Preview { ExtrudedTextLowLevelMeshView() }
struct ExtrudedTextLowLevelMeshView: View {
    @State var lowLevelMesh: LowLevelMesh?
    @State var originalVerticesBuffer: MTLBuffer?
    @State var timer: Timer?

Matt54

import Foundation

enum EasingCurve {
    case linear
    case easeIn(Float)
    case easeOut(Float)
    case easeInOut(Float)

    func apply(_ t: Float) -> Float {
        let t = max(0, min(1, t))

Matt54

#ifndef MarchingCubesColorBlobParams_h
#define MarchingCubesColorBlobParams_h
#include <simd/simd.h>

typedef struct {
    simd_float3 center;
    float       radius;
    simd_float3 color;
    float _pad;
    

Matt54

#ifndef MarchingCubesBlobParams_h
#define MarchingCubesBlobParams_h

#include <simd/simd.h>

typedef struct {
    simd_float3 center;
    float       radius;
} Sphere;

Matt54

#include <metal_stdlib>
using namespace metal;

#define SDFShapeTypeSphere      0u
#define SDFShapeTypeBox         1u
#define SDFShapeTypeTorus       2u
#define SDFShapeTypeRoundedBox  3u
#define SDFShapeTypeBoxFrame    4u
#define SDFShapeTypeLink        5u
#define SDFShapeTypeOctahedron  6u

Matt54

#ifndef MarchingCubesParams_h
#define MarchingCubesParams_h
#include <simd/simd.h>

struct MarchingCubesParams {
    simd_uint3  cells;
    simd_float3 origin;
    simd_float3 cellSize;
    float       isoLevel;
    simd_float3 centerA;

Matt54

#ifndef BurnFadeParams_h
#define BurnFadeParams_h

struct BurnFadeParams {
    float progress;
    float scale;
    float hueRotate;
    float edgeWidth;
    float emberRange;
};

Matt54

import RealityKit

public struct AnimatingTorusSystem: System {
    public init(scene: RealityKit.Scene) {}
    
    public func update(context: SceneUpdateContext) {
        let entities = context.entities(matching: Self.query,
                                        updatingSystemWhen: .rendering)

        for torus in entities.compactMap({ $0 as? LoopingTorusEntity }) {