Mesh Advanced Features in Babylon.js 7

// Enable mesh tessellation (dynamic subdivision)
ground.enableTessellation = true;
ground.tessellationProperties = {
    maxSubdivisions: 8,   // Maximum subdivision level
    distanceFunction: (x, y, z, camera) => {
        // Custom function to determine subdivision based on distance
        const distanceToCamera = BABYLON.Vector3.Distance(
            new BABYLON.Vector3(x, y, z),
            camera.position
        );
        return Math.max(1, 8 - Math.floor(distanceToCamera / 10));
    }
};

// GPU instancing with custom attributes
const buffer = new Float32Array(4 * 100); // 100 instances, 4 values each
for (let i = 0; i < 100; i++) {
    // Custom color and scale for each instance
    buffer[i*4] = Math.random();   // R
    buffer[i*4+1] = Math.random(); // G
    buffer[i*4+2] = Math.random(); // B
    buffer[i*4+3] = 0.5 + Math.random() * 0.5; // Scale
}

sphere.thinInstanceSetBuffer("color", buffer, 4);

// Create vertex shader that uses the buffer
const shader = new BABYLON.ShaderMaterial(/* shader code that accesses custom attributes */);
sphere.material = shader;