# Introduction
"Spring" sets a tone of freshness and nature, using soft and bright colors to create a tranquil and harmonious atmosphere. As the harsh winter melts away and all living things recover, who is it that plucks the strings of the season and plays the movement of life? The brand-new shader work, **Spring v2**, will take you into a dreamlike utopia.
## Shader Information
This shader is a practice work I wrote while studying the course *Games202 - High Quality Real-Time Rendering*. I consider it a sequel to the "Spring" series of shaders; you can view it as a refactored/completed version of *Spring v1*. "Spring" is the codename I used when creating texture packs ten years ago, and I have continued to use this designation.
Below are the effects included in this shader:
### Lighting System
* Path Traced Global Illumination (PTGI) and Ray-Traced Colored Lighting (Requires Iris, disabled by default).
* Reflective Shadow Maps (RSM) with denoiser and screen space light leak suppression.
* PCSS Soft Shadows, Cloud Shadows, Colored (Glass) Shadows, and Screen Space Shadows supporting both near and far distances.
* Ground Truth Ambient Occlusion (GTAO).
* Handheld Dynamic Lighting with colored light support (Syncs with Ray Tracing/Colored Lighting settings).
### Atmosphere System
* Physically Based Atmospheric Scattering and Atmospheric Fog.
* Volumetric Fog, 2D Planar Clouds, Volumetric Clouds, and Screen Space Godrays.
* Unique sunrise and sunset hues.
* Celestial bodies (Sun, Moon, Stars).
### Water and Translucency
* Three wave patterns and Wave Parallax.
* Water Fog, Underwater Volumetrics, and Immersive Underwater Effects.
* Water Refraction simulation and Screen Space Reflections (SSR).
* Water Caustics and Dispersion effects.
* Translucent Object Shadows, PBR Reflections, and Translucent Refraction simulation.
### Material Rendering
* Supports Normal Mapping, Smooth Parallax, and Voxel Parallax.
* Physically Based Rendering (PBR) for reflections, specular highlights, and material interactions.
* Rain puddles, ripples, and wet surface reflection effects.
### Post-Processing
* High-quality Bloom, Auto Exposure, Simple Filters, Tone Mapping, Motion Blur, Depth of Field (DoF), Vignette, and Lens Occlusion.
* Temporal Anti-Aliasing (TAA), Robust Contrast Adaptive Sharpening (RCAS), and Anisotropic Filtering.
### Others
* Exclusive effects for Night, Rain, The End, and The Nether.
* Natural foliage waving animations.
* Full English shader settings interface.
* Supports Distant Horizons, Voxy (Basic/Partial support), Kaleidoscope Cookery, Farmer's Delight, and Biomes O' Plenty.
## Ray Tracing Comparison
**Top:** Ray Tracing / Colored Lighting Enabled.
**Bottom:** Standard Rendering
