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Materials System Architecture

Overview

The Materials System provides a comprehensive, type-safe material management architecture for the Vibe Coder 3D engine. It supports both runtime material creation/modification and editor-based material authoring with full serialization support.

Core Components

1. Material Registry (MaterialRegistry.ts)

The central hub for material management:

interface IMaterialRegistry {
  register(material: IMaterial): string;
  get(id: string): IMaterial | undefined;
  getAll(): Map<string, IMaterial>;
  update(id: string, updates: Partial<IMaterial>): void;
  remove(id: string): boolean;
  clone(id: string, newName?: string): string;
}

Key Features:

  • Type Safety: Full TypeScript support with Zod schemas
  • Serialization: Materials serialize to/from JSON with full fidelity
  • Validation: Runtime validation of material properties
  • Performance: Efficient lookups and caching
  • Editor Integration: Seamless editor/runtime synchronization

2. Material Types (Material.types.ts)

Comprehensive type system defining material structure:

interface IMaterial {
  id: string;
  name: string;
  type: 'standard' | 'phong' | 'lambert' | 'basic' | 'physical';
  properties: IMaterialProperties;
  textures: IMaterialTextures;
  metadata: IMaterialMetadata;
}

interface IMaterialProperties {
  color?: string | number;
  metalness?: number;
  roughness?: number;
  emissive?: string | number;
  emissiveIntensity?: number;
  transparent?: boolean;
  opacity?: number;
  // ... additional properties
}

3. Material Converter (MaterialConverter.ts)

Handles conversion between different material representations:

interface IMaterialConverter {
  fromThreeJS(material: THREE.Material): IMaterial;
  toThreeJS(material: IMaterial): THREE.Material;
  fromJSON(data: unknown): IMaterial;
  toJSON(material: IMaterial): unknown;
  validate(material: IMaterial): ValidationResult;
}

Editor Integration

Materials Panel (src/editor/components/panels/MaterialsPanel/)

Provides a complete material authoring interface:

interface IMaterialsPanelProps {
  selectedMaterialId?: string;
  onMaterialSelect?: (id: string) => void;
  onMaterialCreate?: (material: IMaterial) => void;
  onMaterialUpdate?: (id: string, updates: Partial<IMaterial>) => void;
}

Features:

  • Material Browser: Grid/list view of all materials
  • Property Inspector: Real-time editing of material properties
  • Preview System: Live preview of material changes
  • Template System: Pre-configured material templates
  • Texture Management: Drag-and-drop texture assignment
  • Export/Import: Material library management

Material Inspector (src/editor/components/materials/MaterialInspector.tsx)

Advanced material editing interface:

interface IMaterialInspectorProps {
  material: IMaterial;
  onChange: (updates: Partial<IMaterial>) => void;
  preview?: boolean;
  advanced?: boolean;
}

Advanced Features:

  • Shader Graph: Visual shader node editing (planned)
  • Procedural Materials: Noise, gradient, and pattern generation
  • Animation Support: Time-based material properties
  • Layer System: Complex material layering
  • Real-time Preview: WYSIWYG editing experience

Runtime Integration

Material Hooks

// Core material access hook
export function useMaterial(id: string): IMaterial | undefined;

// Material creation and management
export function useMaterialManager(): {
  create: (template?: IMaterial) => string;
  update: (id: string, updates: Partial<IMaterial>) => void;
  remove: (id: string) => void;
  clone: (id: string) => string;
};

// Material serialization
export function useMaterialSerialization(): {
  exportMaterial: (id: string) => string;
  importMaterial: (json: string) => string;
  exportLibrary: () => string;
  importLibrary: (json: string) => void;
};

React Integration

// Declarative material usage in React components
<MaterialProvider materialId="my-material">
  <mesh>
    <boxGeometry />
    <MaterialRenderer /> {/* Automatically applies material */}
  </mesh>
</MaterialProvider>

// Hook-based material application
const MyComponent = () => {
  const material = useMaterial('my-material');
  return (
    <mesh material={material?.threeMaterial}>
      <boxGeometry />
    </mesh>
  );
};

Serialization System

Material Serialization (MaterialSerializer.ts)

Full-featured serialization with versioning:

interface IMaterialSerialization {
  serialize(material: IMaterial): ISerializedMaterial;
  deserialize(data: ISerializedMaterial): IMaterial;
  migrate(fromVersion: string, toVersion: string): ISerializedMaterial;
  validate(data: unknown): ValidationResult;
}

Serialization Features:

  • Version Management: Automatic migration between versions
  • Texture References: Proper handling of texture dependencies
  • Optimization: Compression and delta serialization
  • Validation: Schema validation with detailed error reporting
  • Streaming: Support for large material libraries

Performance Optimizations

Material Pooling

// Efficient material reuse
class MaterialPool {
  private static pool = new Map<string, THREE.Material[]>();

  static get(material: IMaterial): THREE.Material {
    const key = this.getMaterialKey(material);
    const pooled = this.pool.get(key)?.pop();
    return pooled || this.createMaterial(material);
  }

  static release(material: THREE.Material): void {
    // Return to pool for reuse
  }
}

Instancing Support

// GPU instancing for performance
interface IMaterialInstancing {
  createInstances(count: number): InstancedMaterial;
  updateInstance(index: number, properties: Partial<IMaterialProperties>): void;
  optimizeForInstancing(material: IMaterial): IMaterial;
}

Editor Workflow

Material Creation Flow

sequenceDiagram
    participant U as User
    participant E as Editor UI
    participant M as Material Registry
    participant R as Runtime Engine

    U->>E: Create New Material
    E->>M: Register Material Template
    M-->>E: Generate Unique ID
    E->>U: Show Material Inspector
    U->>E: Modify Properties
    E->>M: Update Material
    M-->>R: Sync to Runtime
    R-->>E: Update Preview
    U->>E: Save Material
    E->>M: Persist to Storage
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Material Editing Workflow

stateDiagram-v2
    [*] --> MaterialSelected
    MaterialSelected --> PropertyEditing: Edit Properties
    PropertyEditing --> LivePreview: Auto-Update Preview
    LivePreview --> PropertyEditing: Continue Editing
    PropertyEditing --> SaveChanges: User Saves
    SaveChanges --> [*]: Material Updated
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Integration with Other Systems

ECS Integration

// Material component for entities
export const MaterialComponent = defineComponent({
  materialId: Types.ui32, // Reference to material registry
  materialHash: Types.ui32, // For fast lookups
  instanceId: Types.ui32, // For instanced materials
});

Asset Pipeline Integration

// Material references in asset manifest
interface IMaterialAsset {
  type: 'material';
  id: string;
  source: 'editor' | 'imported' | 'procedural';
  dependencies: string[]; // Texture/shader dependencies
  metadata: {
    author: string;
    tags: string[];
    usage: 'character' | 'environment' | 'ui';
  };
}

Advanced Features

Procedural Material Generation

interface IProceduralMaterial {
  generateNoise(config: INoiseConfig): IMaterial;
  generateGradient(config: IGradientConfig): IMaterial;
  generatePattern(config: IPatternConfig): IMaterial;
  combine(materials: IMaterial[], operation: 'mix' | 'add' | 'multiply'): IMaterial;
}

Material Animation System

interface IMaterialAnimation {
  animate(material: IMaterial, time: number): IMaterial;
  createKeyframe(material: IMaterial, time: number, properties: Partial<IMaterialProperties>): void;
  play(materialId: string, animationId: string): void;
  pause(materialId: string, animationId: string): void;
}

Testing Architecture

describe('Materials System', () => {
  describe('MaterialRegistry', () => {
    it('should register and retrieve materials', () => {
      const registry = new MaterialRegistry();
      const material = createTestMaterial();
      const id = registry.register(material);
      expect(registry.get(id)).toEqual(material);
    });

    it('should handle serialization round-trips', () => {
      const material = createComplexMaterial();
      const serialized = MaterialSerializer.serialize(material);
      const deserialized = MaterialSerializer.deserialize(serialized);
      expect(deserialized).toEqual(material);
    });
  });
});

Future Enhancements

Planned Features

  1. Visual Shader Graph: Node-based shader creation
  2. Material Libraries: Community-contributed material packs
  3. Real-time Collaboration: Multi-user material editing
  4. AI-Powered Materials: Generate materials from descriptions
  5. Material Market: Asset store integration
  6. Performance Profiling: Material performance analysis tools

Extension Points

interface IMaterialExtension {
  name: string;
  version: string;
  materialTypes: string[];
  editorComponents: React.ComponentType[];
  runtimeHooks: Function[];
  serializationHandlers: SerializationHandler[];
}

Performance Characteristics

Memory Usage

  • Material Registry: ~50KB base + 1KB per material
  • Serialization Cache: Configurable size with LRU eviction
  • Preview Textures: Shared texture atlas for efficiency

Runtime Performance

  • Material Access: O(1) hash-based lookups
  • Property Updates: O(log n) tree-based updates
  • Serialization: ~2ms for complex materials
  • Preview Updates: <16ms for real-time editing

This materials system provides a solid foundation for advanced material authoring while maintaining performance and type safety throughout the editor and runtime environments.