partybusiness’s gists

partybusiness / chrome_with_viewshadow.gdshader

Last active April 24, 2025 01:40

fake chrome using cubemap for reflection, with a black blob shadow superimposed over the viewer's position

	shader_type spatial;

	uniform samplerCube sky_cube:source_color;

	uniform sampler2D shadow_texture:source_color, repeat_disable, hint_default_white;

	uniform vec2 shadow_scale = vec2(2.0, 1.0);

	uniform vec2 shadow_offset = vec2(0.5,0.2);

partybusiness / pixel_size.gdshader

Created March 27, 2025 02:48

Gets the size of a texel on-screen in pixels

	shader_type spatial;
	// quick test for how large a texel in on-screen in pixels

	uniform sampler2D test_texture:filter_nearest;

	void fragment() {
	vec2 uv_per_texel = vec2(1.0, 1.0) / vec2(textureSize(test_texture, 0));
	vec2 dfx = dFdx(UV);
	vec2 dfy = dFdy(UV);
	vec2 uv_per_pixel = vec2(length(vec2(dfx.x, dfy.x)), length(vec2(dfx.y, dfy.y)));

partybusiness / moon_sky.gdshader

Created March 26, 2025 22:35

Godot sky shader that displays the moon based on light direction

	shader_type sky;

	uniform sampler2D moon_texture:source_color, repeat_disable;

	// updirection of moon texture will try to align with this
	uniform vec3 north = vec3(0, 0, -1);

	void sky() {
	vec3 light_dir = normalize(-LIGHT0_DIRECTION);
	vec3 side_dir = normalize(cross(light_dir, north));

partybusiness / snakes_and_ladder_board.csv

Last active May 5, 2025 01:07

Snakes and ladders analysis using a transition matrix in R

	start	end
	73	1
	46	5
	55	7
	8	26
	48	9
	52	11
	59	17
	83	19
	21	82

partybusiness / dot_vertex.gdshader

Created February 18, 2025 02:35

	shader_type canvas_item;
	// draws black dots at corners

	uniform float dot_size = 30; // size of dots at vertices

	varying vec2 vertex_uv; // used to pass fake UV since real UV wasn't behaving as expected

	void vertex() {
	vertex_uv = COLOR.rg; // using vertex colour because UV array from Polygon2D wasn't working for me?
	//vertex_uv = UV;

partybusiness / super_sphere.gd

Last active February 16, 2025 17:57

	#Based on Procedural Toolkit by Syomus (https://github.com/Syomus/ProceduralToolkit)
	@tool
	extends PrimitiveMesh
	class_name SuperSphere
	# generates a supersphere


	## size of the supersphere
	@export var radius : float = 1.0:
	get:

partybusiness / fake_ground_plane.gdshader

Last active January 9, 2025 18:53

Displays a fake ground plane that doesn't need to correspond to geometry. Useful for creating a ground plane that extends to the horizon without requiring infinite geometry.

	shader_type spatial;

	uniform sampler2D ground_texture:source_color, repeat_enable, filter_linear_mipmap;

	uniform float ground_height = -1.0;
	uniform float scale = 2.0;

	varying vec3 world_position;
	varying vec3 cam_pos;

partybusiness / compress_effect.gd

Last active March 20, 2025 16:20

CompositorEffect that applies a JPEG-inspired bad compression.

	@tool
	extends CompositorEffect
	class_name CompressEffect
	#
	#@tool

	const shrink_shader_path:String = "res://compression/compress_shrink_effect.glsl"

	const block_shader_path:String = "res://compression/compress_final_effect.glsl"

partybusiness / bright_star_lst.csv

Last active January 8, 2025 18:49

Two methods of displaying a starry sky. One generates a star map as a 64x64 png file using star position data and then uses that star map to display a sky shader. The other just displays random star positions along vertical strips.

RA	DEC	V	B-V
00 08.2	+29 04	2.1	-0.11
00 09.0	+59 08	2.3	0.34
00 13.1	+15 10	2.8	-0.23
00 25.4	-77 17	2.8	0.62
00 26.2	-42 20	2.39	1.09
00 39.2	+30 50	3.27	1.28
00 40.3	+56 31	2.23	1.17
00 43.5	-18 01	2.04	1.02
00 49.0	+57 48	3.44	0.57

partybusiness / shuffle_tester.gd

Last active February 25, 2025 19:12

Shuffle node in Godot that uses crypto.generate_random_bytes if I want to be pedantic that every possible shuffle is possible

	extends Node
	class_name ShuffleTester

	var deck:Array

	@export var shuffler:Shuffler

	@export var simple_shuffler:SimpleShuffler

	@export var shuffler_mod:ShufflerMod