https://github.com/fadookie/gzdoom-shaders

Shader experiments for GZDoom - check history for older ones
https://github.com/fadookie/gzdoom-shaders

Last synced: about 1 month ago
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Shader experiments for GZDoom - check history for older ones

• Host: GitHub
• URL: https://github.com/fadookie/gzdoom-shaders
• Owner: fadookie
• License: mit
• Created: 2018-03-10T07:41:10.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-03-15T08:55:28.000Z (almost 7 years ago)
• Last Synced: 2024-10-14T06:12:43.617Z (3 months ago)
• Size: 23.4 KB
• Stars: 3
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
This is a multi-function postprocess shader for [GZDoom 3.2.5+](https://zdoom.org/) that supports various effects which can be combined together. They are mostly based on a 3d simplex (perlin) noise function such as texture distortion and tint, in addition to some trippy effects like lerping the hue, saturation, or value.

Texture distortion, subtraction, and tint:

![Nukage shader](https://eliot.s3.amazonaws.com/media/doom/nukage.gif)

HSV shift animation:

![HSV shift animation](https://eliot.s3.amazonaws.com/media/doom/animhsv.gif)

The root of this repo can be loaded as a `-file` by GZDoom, or you can use a pk3 from the releases section.

# CVars / Uniforms

Shader uniforms can be controlled from ZScript or using CVars. Here are the available CVars for tweaking the uniforms:

| CVar | Default | Description |

|:-----|:--------|:------------|

|`timescale`|`0.005`| how quickly to run the noise permutations |

|`scale `|`1`| uniform scale (zoom) of 2d noise plane |

|`distortion`|`0.05`|How much to distort texture. `0` means no distorition. Values higher than about `0.3` will make the game unplayable but look cool...|

|`subtractive`|`0.25`|amount of color to subtract (darken) the screen by based on noise function, `0` means no subtraction.|

|`animh`|`true`|Animate hue?|

|`anims`|`true`|Animate saturation?|

|`animv`|`true`|Animate value?|

|`tintr`|`0`|Red channel additive tint|

|`tintg`|`0`|Green channel additive tint|

|`tintb`|`0`|Blue channel additive tint|