MateSteinforth’s gists

MateSteinforth / StretchAndOrientByVelocity.vfxblock

Last active February 16, 2025 18:03

Orient and scale particles along velocity. adapted from https://github.com/robcupisz/flying-embers

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	m_Name: StretchAndOrientByVelocity
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MateSteinforth / RoundedBox.sca

Last active March 16, 2024 19:38

Rounded Box Outline SDF in SparkSL

	//==============================================================================
	// Rounded Box Outline SDF
	//==============================================================================

	float roundedBoxSDF(vec2 CenterPosition, vec2 Size, float Radius)
	{
	return length(max(abs(CenterPosition)-Size+Radius,0.0))-Radius;
	}

	float roundBoxOutline(vec2 size, float thickness, float radius)

MateSteinforth / simple-https-server.py

Created February 7, 2024 07:45 — forked from dergachev/simple-https-server.py

	# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
	# generate server.xml with the following command:
	# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
	# run as follows:
	# python simple-https-server.py
	# then in your browser, visit:
	# https://localhost:4443

	import BaseHTTPServer, SimpleHTTPServer
	import ssl

MateSteinforth / Update.ts

Last active December 21, 2023 15:16

Spark Imperative Update Loop

	import Time from 'Time';
	/**
	* The Update class manages subscriptions to snapshot items and provides an update method that can be overridden by subclasses.
	*
	* import Scene from 'Scene';
	* import Update from './Update';
	*
	* class OtherClass extends Update {
	* private _mySceneObject: Scene.SceneObjectBase = Scene.root.findFirstSync('plane0');
	*

MateSteinforth / CompileBeforePlay.cs

Created November 23, 2022 09:17

	// Remember to put the script you choose inside a folder called Editor inside your Assets folder.

	using UnityEditor;

	public static class CompileBeforePlay
	{
	[InitializeOnLoadMethod]
	public static void Initialize()
	{
	if (EditorApplication.isPlaying) return;

MateSteinforth / Array in SparkSL

Created June 19, 2022 11:08

int numbers[10] = { 31599, 25751, 25255, 25230, 23241, 31118, 14826, 29257, 11242, 15306 };

MateSteinforth / shadow.sca

Created June 16, 2022 12:58

	//==============================================================================
	// Shadow
	//==============================================================================

	#import <utils>
	using namespace std;
	vec4 main() { return vec4(vec3(0.0), smoothstep(0.5, 0.0, safeDistance(fragment(getVertexTexCoord()), vec2(0.5)))); }

MateSteinforth / matcap.sca

Last active October 29, 2023 14:47

	//==============================================================================
	// MatCap Shader
	// via https://www.clicktorelease.com/code/spherical-normal-mapping/
	//==============================================================================

	using namespace std;
	#import <utils>

	export vec2 calculateNormal( optional<std::Texture2d> normalTex,
	mat3 tangentFrame,

MateSteinforth / displacement.sca

Created June 7, 2022 13:59

	//==============================================================================
	// Simple Displacement Shader
	// make sure to add 'Vertex Texture Fetch' to Capabilities
	//==============================================================================

	void main(optional<std::Texture2d> displace, optional<std::Texture2d> tex, float depth, out vec4 Color, out vec4 Position) {
	vec2 uv = std::getVertexTexCoord();
	vec4 texturePos = displace.sampleLod(uv, 0.0).valueOr(vec4(1.0));
	vec4 outPosition = std::getVertexPosition() + vec4(std::getVertexNormal()texturePos.rgbdepth, 0.0);
	Color = tex.sampleLod(fragment(uv), 0.0).valueOr(vec4(1.0));

MateSteinforth / bitwise.p5.js

Created March 12, 2022 09:31

Bitwise Operators lookup Texture ala http://orenk2k.blogspot.com/2011/05/bitwise-operators-on-low-end-gpus.html

Mate Steinforth MateSteinforth