FuseFX

Extra image effects for Fuse

Background

Fuse is built on a proprietary programming language called Uno, which is based off C# and adds a number of features for platform agnostic programming and easy access to hardware accelerated rendering features.

Because of this, Fuse has a post processing effects pipeline that is fairly easy to extend, with a little grit and intuition. This repo contains additional post processing effects pieced together by myself in the process of learning how Uno draw statements work.

Adding to your project

Just clone this repo and add a project reference to it in your unoproj:

"Projects":[
  "../FuseFX/FuseFX.unoproj"
]

Current effects

ChromaticAberration

This effect applies a naive spatial distortion to the individual color components of the rendered element, offsetting colors from their original location. Each component has an Offset property, taking a 2-component comma separated float list corresponding to the X and Y offsets.

<Image File="foo.png">
  <!-- Offset the red component of every pixel by 5 texels on the X axis -->
  <ChromaticAberration OffsetR="5,0" />
</Image>

ColorGain

Add and then multiply the color components of the element (color = (color+add)*multiply); Each component can be manipulated individually or as a whole with a color input.

<Image File="foo.png">
  <!-- Add a little bit of red and make the whole thing darker-->
  <ColorGain AddColor="#300" MultiplyColor="#888" />
</Image>

ContrastSaturationBrightness

Apply Photoshop-style contrast, saturation and brightness modifiers in one effect. Every property is in a scalar range from 0 to 1. The range is unclamped for fun and weirdness.

<Image File="foo.png">
  <!-- Make it look like a harsh stencil-->
  <ContrastSaturationBrightness Contrast="4" Saturation="0" Brightness="3" />
</Image>

Levels

Apply Photoshop-style color range remapping and gamma correction using input/output ranges and a gamma scalar.

<Image File="foo.png">
  <!-- Deepen black levels -->
  <Levels MinInput="0.1" />
</Image>

Grayscale

Convert to graycale.

Algorithm can be on of:

Monochrome
Average, R+G+B / 3
Luma, R * 0.2126 + g * 0.7152 + B * 0.0722
MaxDecomposition, Max(R,G,B)
MinDecomposition, Min(R,G,B)
Desaturate, Max(R,G,B) + Min(R,G,B) / 2
RedChannel, R
GreenChannel, G
BlueChannel, B

<Image File="foo.png">
  <Grayscale Algorithm="Average" />
</Image>

bolav/FuseFX