Light Age - black and white shader
Hi, welcome to my first devlog post!
I want to show you how I decided to implement the main features of Light Age, a game made for the #BWJam in 2021. The key aspect of this jam was that you can only use #ffffff (white) and #000000 (black) in the game. Note that I have used Godot as a Game Engine.
To achieve the color constraints of the jam, I have implemented a ColorRect always visible on top of all nodes (it is an AutoLoad Singleton), with a Shader attached to it:
shader_type canvas_item; uniform float threshold : hint_range(0, 1); void fragment() { COLOR = texture(SCREEN_TEXTURE,SCREEN_UV,10); float avg = (COLOR.r + COLOR.g + COLOR.b) / 3.0; if(avg<threshold) { avg = 0.0; } else { avg = 1.0; } COLOR.rgb = vec3(avg); }
It's a simple shader, and it does a mean of the RGB components of each pixel on the screen and then, if this value is above a certain threshold, that pixel is set to #ffffff, otherwise, it's set to #000000.
In this way, everything renderer on the screen is then processed by this shader, and there will not be any other color rather than #000000 and #ffffff.
Shader disabled:
Shader enabled:
Hope that this can be interesting for you!
Get Light Age
Light Age
Black and white maze game, with enemies and traps.
Status | Released |
Author | rudyvic |
Tags | 2D, Black and White, Game Jam, maze, Minimalist, one-screen, Pixel Art, Short, Singleplayer, Top-Down |
Languages | English |
Accessibility | High-contrast |
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