improve rain in vibrant visual

🌧️ Visual Improvements

💦 Rain particles

• More detailed and visible raindrops
• Slight variation in drop size and speed for realism
• Better interaction with light (rain looks softer in shadows, brighter near light sources)

🌊 Ground interaction

• Subtle splash effects when rain hits blocks
• Temporary wet appearance on surfaces during rain
• Light reflective effect on stone, dirt, and wood (very subtle, not shader-level)

🌫️ Atmosphere

• Slight fog increase during heavy rain
• More immersive sound layering (rain on leaves, roofs, water, etc.)
• Stronger visual density for thunderstorms ⚡

⚙️ Performance & Options

🔘 Toggle system (important)

Add a simple graphics option:

• “Enhanced Rain Visuals” ON/OFF
  • OFF = current vanilla rain (no performance cost)
  • ON = improved visuals using Vibrant Visuals system

🖥️ Performance priority

• Designed to be lightweight and scalable
• No gameplay impact (no physics changes, no movement changes)
• Works with low-end and high-end devices by adjusting quality automatically

🎮 Why this fits Minecraft

• Keeps the vanilla style of Minecraft
• Only improves immersion, not mechanics
• Optional feature ensures accessibility for all players
• Matches Mojang’s direction toward optional visual upgrades (like Vibrant Visuals)