What are the differences between Built in Render Pipeline (Default), Universal Render Pipeline (URP) and High definition Render pipeline (HDRP) in Unity, name the pros and cons of using each
The Built-in Render Pipeline (Default), Universal Render Pipeline (URP), and High Definition Render Pipeline (HDRP) are three rendering pipelines available in Unity. Here are some of the key differences and pros/cons of using each:

Built-in Render Pipeline (Default):

- Pros:
    - Compatible with older devices and platforms
    - Supports a wide range of rendering techniques
    - Full control over the rendering process
- Cons:
    - Less efficient than URP and HDRP
    - Limited graphics quality and rendering features

Universal Render Pipeline (URP):

- Pros:
    - Lightweight and optimized for mobile and VR devices
    - Improved performance compared to Built-in Render Pipeline
    - Extensible through custom render passes
- Cons:
    - Limited support for high-end graphics features and effects
    - Not suitable for complex and high-end projects

High Definition Render Pipeline (HDRP):

- Pros:
    - High-end rendering features, such as advanced lighting and materials, realistic reflections, and post-processing effects
Supports high-end devices and platforms
    - Scalable and customizable
- Cons:
    - More resource-intensive than URP and Built-in Render Pipeline
    - Requires advanced knowledge of rendering and graphics programming
    - May not be compatible with older devices and platforms