Post-processing & image effects
Post-processing runs on the finished image: bloom, colour grading, depth of field, vignettes, custom full-screen effects. Here you will find the Volume system in URP and HDRP, plus how to write your own full-screen passes. It is the quickest way to change the overall look of a game. 40 hand-picked Unity guides, tutorials, videos and repos, kept current.
- Unity Shader Code Basics 09 - Post Processing
Writes grayscale and other post-process effects in URP using the newer Render Graph API.
danielilett.com · Sep 2026 - Recreating a painterly shader in Unity URP
Rebuilding a painterly look in URP over a few days using post-process passes.
jettelly.com · Jul 2026 - Blur Shaders Pro - A Technical Breakdown
Walks through building a two-pass Gaussian blur with sparse kernel support for a shader asset.
danielilett.com · Apr 2026 - Custom SRP 6.2 3D Color LUT
Custom SRP tutorial creating a 3D color LUT.
catlikecoding.com · Apr 2026 - Custom SRP 6.1: Showing Color LUT
Custom SRP tutorial showing the color LUT for color grading.
catlikecoding.com · Mar 2026 - Unity Shader Graph Basics (Part 12 - Post Processing)
Reads screen contents with the Fullscreen graph type to build post-process effects in Shader Graph.
danielilett.com · Oct 2025 - @halisavakis.com: fake multiple scattering by compositing bloom with fog
Proof of concept blurring high-frequency fog detail via a bloom composited with the fog, plus its limitations.
bsky.app · Jun 2025 - Custom Post Processing with Render Graph
Patreon post on custom post processing using URP's Render Graph.
patreon.com · Mar 2025 - Custom Post Processing for Volumes in URP
Patreon post on custom post processing for URP volumes.
patreon.com · Feb 2025 - Mystery Dungeon Sketch Post Process in Unity URP
Builds a Mystery Dungeon style sketch post process in URP using triplanar mapping.
youtube.com · Sep 2024 - Selective Image Effects
Patreon post on selective image effects in Unity.
patreon.com · ~Jan 2024 - Unity Glitch Effect Patreon post
Patreon post on a glitchy effect in Unity.
patreon.com · ~Nov 2023 - Lofi 3D pixel art explorations
Low-res 3D pixel look in Unity via point-filtered render textures or a pixelate post effect.
alexstrook.blogspot.com · ~Jul 2023 - GTA V – Underestimated Glow
Explains how the nighttime glow on GTA V traffic lights works.
simonschreibt.de · Jun 2023 - Outline Post Process in Unity Shader Graph (URP)
Draws outlines as a Fullscreen Shader Graph post process by detecting color changes between neighboring pixels.
danielilett.com · Mar 2023 - patreon.com
Patreon post on setting up a basic quad for an effect in Unity.
patreon.com · ~Feb 2023 - Shader bits: World space reconstruction, orthographic camera texture projection & fake perspective UVs – Harry Alisavakis
Shader snippets for world space reconstruction and orthographic camera texture projection.
halisavakis.com · ~Mar 2022 - Different methods for getting World Normal from Depth Texture, without any external script dependencies.
Repo: shader gist with several ways to reconstruct world-space normals from the depth texture without scripts.
gist.github.com · Feb 2021 - Precision Color by Scribbl
Itch.io color effect for the Unity post-processing stack.
scribbl.itch.io · ~Sep 2020 - Ultra Effects | Part 9 - Obra Dithering
Recreates the stable dithered look of Return of the Obra Dinn in Unity.
danielilett.com · Feb 2020 - Alpha to Coverage Anti-Aliasing
Patreon post on alpha-to-coverage and anti-aliasing for cutout transparency.
patreon.com · ~Jan 2020 - Ultra Effects | Series Introduction
Introduction to a series on image effects such as fisheye lenses.
danielilett.com · Sep 2019 - Recreating Red Dead Redemption's Dead Eye | Mix and Jam
Recreates Red Dead Redemption's Dead Eye slow-motion targeting in Unity.
youtube.com · Apr 2019 - Shader Showcase Saturday #11: Return of the Obra Dinn
Analyzes the aesthetic of Return of the Obra Dinn and how to recreate it with shaders.
alanzucconi.com · Oct 2018 - My take on shaders: Glitch image effect – Harry Alisavakis
Tutorial on building a glitch image effect.
halisavakis.com · ~Jan 2018 - What is Color Banding? And what is it not?
Explains what color banding is and how to avoid it.
simonschreibt.de · Dec 2015 - X:Rebirth – Geometric Lensflares
Looks at geometric lens flares in X:Rebirth instead of texture-based ones.
simonschreibt.de · Oct 2015 - Underwater Effects
Article on rendering underwater effects in Unity.
alastaira.wordpress.com · Oct 2014 - Doom 3 – Volumetric Glow
Explains the volumetric glow effect in Doom 3 and how it is faked with simple geometry.
simonschreibt.de · May 2013 - 007 Legends – The World
Explains how 007 Legends renders its miniature-looking world with a tilt-shift style trick.
simonschreibt.de · Apr 2013 - Left 4 Dead 2 – Puke
Analyzes how Left 4 Dead 2 renders the screen-splatter vomit effect.
simonschreibt.de · Feb 2013 - Deus Ex – Scanlines
Looks at the scanline effect used on screens in Deus Ex.
simonschreibt.de · Jan 2013 - Deus Ex 3 – Folds
Examines the folding-pattern shader effect in Deus Ex 3 and its sound pairing.
simonschreibt.de · Jan 2013 - Teleglitch – RGB Flickering
Explains Teleglitch's RGB flicker effect that plays when using a teleporter.
simonschreibt.de · Jan 2013 - Pixelation Shader
Tutorial on creating a pixelation shader.
alexanderameye.github.io - GBCamera for Unity by rogueNoodle
Itch.io asset: camera setup and shader that emulate Game Boy visuals in Unity.
roguenoodle.itch.io - Custom SRP 2.4.0
Catlike Coding tutorial on letting the render graph manage post-FX textures in a custom SRP.
catlikecoding.com - Custom Renderer Features
Explains writing custom renderer features and scriptable render passes for Universal RP with examples.
cyanilux.com - Color Grading
Catlike Coding tutorial on adding color grading tools in a custom SRP.
catlikecoding.com - 2D GLOW & Bloom Effect in Unity
Adds 2D glow and bloom effects in Unity.
youtube.com