Retro Shaders Pro for Unity URP

A collection of PS1-style shader effects for Unity URP: step back into the past and bring an old-school look to your meshes, terrains, and skyboxes!

This pack adds new PSX shaders, scripts, and meshes to the Universal Render Pipeline, complete with a demo scene showing them all off.

✨ Key Features

• PSX-style and N64-style effects which emulate the look and feel of classic games.
  • Blend together the limitations of both consoles for the first time!
• Lit, Unlit, and Vertex Lit variants of the core shader.
  • With full support for transparency, face culling, and alpha clipping.
• CRT and VHS post processing effect for an extra retro feel.
• Terrain support with the Terrain lit shader.
• Cubemap Skybox support with many of the same features as the core shader.
• Procedural Skybox shader which generates clouds dynamically.
• Decal shader which supports most of the retro features.
• Hull Outline shader with vertex snapping option.
• Two demo scenes:
  • A wooded area focusing on terrains and direction light support, with trees, mushrooms, and geese.
  • A city block showcasing additional spot light support, with buildings and street lamps.

🎮 PSX-style Features

• Texel lighting which snaps shadows to each object's texture.
  • Adapted from work in this thread, especially user GreatestBear.
• A resolution limiter to automatically use lower mip levels for your textures.
• Vertex snapping modeled after the low precision of the PS1's vertex processing.
• Affine texture mapping to mimic the lack of perspective correction on the PS1 hardware.
• Color depth limiter to reduce the color fidelity of your objects.
• Dithering to blend between color bands.
• Framerate limiter script.

📼 N64-style Features

• Limited bilinear filtering, which uses three texels instead of the usual four.

⚡ Lighting & Rendering Features

• Support for Forward, Forward+, and Deferred rendering paths
• Directional light and additional light support in Lit & VertexLit
• Ambient light controls - override Unity's ambient light
• Vertex color support - tint the base color of your object

📺 CRT & VHS Post Process Effect

• VHS-style effects: color damage, tracking artifacts, and worn tape effects.
  
• Barrel distortion to emulate the rounded face of a CRT screen
  
• Chromatic aberration to separate the color channels towards the edges of the screen
  
• Pixelation to reduce the screen resolution
  
• A scanline effect which scrolls down the image
  
• An RGB subpixel rendering effect which tints different pixels red, green, or blue
  
• Interlaced rendering to alternate between rendering different rows of pixels between frames

✅ Compatible Versions

• Compatible with the Universal Render Pipeline only.
• Fully tested with Unity 2022.3 and Unity 6.0, the latest LTS releases.
• Also tested on Unity 6.1. You may see shader warnings, but the shaders will still function.
• Supports the Forward, Forward+, and Deferred rendering paths.
• Please note that this package was designed for desktop use. Support is not guaranteed on VR, mobile, or console platforms. The CRT effect may not function properly in WebGL builds.