A minimalistic yet powerful Animated Mesh System built in C++, designed to load, manage, and render skinned animated models using Assimp for importing formats like .fbx, .dae, .gltf, etc., and Raylib for rendering.

Supports:

• Hardware Skinning (via Shaders)
• Software Skinning (CPU transformation)
• Multiple Animation Blending
• Bone Hierarchy Transformations
• Keyframe Animation System

• AnimatedMesh Loader: Load meshes, bones, weights, and animations from standard formats using Assimp.
• SkinSurface Management: Manage vertex buffers, indices, and bone influences.
• KeyFrame Animation System: Smooth interpolation of position and rotation keyframes.
• Animator System: Control playback, blending, and transition between animations.
• Entity System: Instantiate animated models as game objects with materials and transforms.
• Software Skinning: CPU-based vertex transformations.
• Hardware Skinning: GPU skinning via custom shaders.
• Animation Modes: Loop, Ping-Pong, OneShot, Blending.

• Raylib (Graphics & Input)
• Assimp (Asset Import Library)
• C++11 or higher

AnimatedMesh mesh;
mesh.Load("assets/character.fbx");

Entity *player = new Entity(&mesh);

// Load Textures/Materials
Texture2D texture = LoadTexture("assets/textures/character_diffuse.png");
player->AddMaterial(texture);
entity->SetMaterial(-1, 0);//-1 all sub mesh 0 texture layer

// Play Animation
player->GetAnimator()->Play("Run");

// In Game Loop
while (!WindowShouldClose())
{
    float deltaTime = GetFrameTime();

    player->Update(deltaTime);

    BeginDrawing();
    ClearBackground(RAYWHITE);

    BeginMode3D(camera);

    player->Render();

    EndMode3D();
    EndDrawing();
}

• Enable custom skinning shaders.
• Upload bone matrices as uniform arrays.
• Vertex shader will skin vertices in GPU.

• Vertices are transformed on CPU per frame.
• Useful for testing or fallback in old hardware.

player->GetAnimator()->Play("Attack", Animation::ONESHOT);
player->GetAnimator()->PlayWithNext("Attack", "Idle", Animation::ONESHOT, Animation::LOOP, 0.5f);

MIT License

Made by Luis Santos AKA djoker, for the pure joy of creating an animation system from scratch, without relying on heavy game engines.