Resource Management

Overview

The ResourceManager is a central system in Nevo Engine responsible for loading, storing, and managing the lifecycle of various assets used by the engine. It handles both high-level metadata and low-level GPU resources.

Managed Resources

The ResourceManager tracks several types of resources:

• Meshes: 3D model data (vertices, indices).
• Shaders: High-level shader metadata and compiled GPU shader programs.
• Materials: Definitions of how surfaces should be rendered, including properties, color, and optional textures.
• Textures: Image data and corresponding GPU textures.
• Scenes: Hierarchical entity structures loaded from scene files.
• Graphics Buffers: Low-level GPU buffers (VBO, EBO, VAO).

Resource Lifecycle

Registration

Resources are typically registered in pairs: high-level metadata along with its corresponding GPU resource.

void RegisterMeshResource(const std::string &name, MeshPtr mesh, ...);
void RegisterShaderResource(const std::string &name, ShaderPtr shader, ...);
void RegisterTextureResource(const std::string &name, TexturePtr texture, ...);

Retrieval

Assets can be retrieved by their unique string identifiers.

Mesh* mesh = resourceManager.GetMesh("player_model");
Material* material = resourceManager.GetMaterial("gold_material");
GraphicsTexture* texture = resourceManager.GetGraphicTexture("brick_diffuse");

Removal and Cleanup

The ResourceManager provides methods to remove specific resources or clear entire collections, ensuring proper cleanup of both CPU and GPU memory.

resourceManager.RemoveMeshResource("player_model");
resourceManager.ClearAll(); // Destroys all managed resources

Performance

The ResourceManager is optimized for fast retrieval using hash maps and is integrated with the Tracy profiler for real-time performance monitoring.