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    // Basic Shader Optimization Tips for AR:
    // 1. Use lower precision data types (e.g., half instead of float) where possible.
    // 2. Minimize the number of texture samples and consider using texture atlases.
    // 3. Simplify lighting calculations; use baked lighting or ambient light approximations.
    // 4. Reduce the number of instructions in the fragment shader.
    // 5. Implement LOD (Level of Detail) for complex models.
    // 6. Use efficient branching and avoid dynamic loops.
    // 7. Profile and test on target devices to ensure performance gains.
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