ricardomatias / PicoMIDItoCV.py

Created May 18, 2023 11:13 — forked from axwax/PicoMIDItoCV.py

Raspberry Pi Pico based MIDI to CV converter using an MCP4725 12-bit DAC.

	# MIDI to CV converter for Raspberry Pi Pico and MCP4725 DAC by @AxWax
	#
	# Demo: https://www.youtube.com/watch?v=aGfQHL1jU4I
	#
	# This is heavily based on and requires
	# the SimpleMIDIDecoder library by @diyelectromusic, which can be found at
	# https://diyelectromusic.wordpress.com/2021/06/13/raspberry-pi-pico-midi-channel-router/
	#
	#
	# Wiring:

ricardomatias / video_to_gif.sh

Created January 11, 2023 10:16 — forked from Olshansk/video_to_gif.sh

A handy bash function to convert a video (e.g. a screen cap) to a gif using ffmpeg in your shell

	function video_to_gif {
	local input_video_path="$1"
	local output_gif_path="$2"
	local fps="${3:-10}"
	local scale="${4:-1080}"
	local loop="${5:-0}"

	ffmpeg -i "${input_video_path}" -vf "setpts=PTS/1,fps=${fps},scale=${scale}:-2:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" -loop $loop "${output_gif_path}"
	}

ricardomatias / StripedTube.kt

Created September 15, 2021 12:07 — forked from ylegall/StripedTube.kt

StripedTube: code for https://www.instagram.com/p/CGYBXZNHTJk/

	package org.ygl.openrndr.demos

	import org.openrndr.application
	import org.openrndr.color.ColorRGBa
	import org.openrndr.draw.BufferMultisample
	import org.openrndr.draw.DrawPrimitive
	import org.openrndr.draw.colorBuffer
	import org.openrndr.draw.renderTarget
	import org.openrndr.draw.shadeStyle
	import org.openrndr.draw.vertexBuffer

ricardomatias / ApollonianGasket.kt

Created September 15, 2021 12:02 — forked from ylegall/ApollonianGasket.kt

apollonian gasket (https://www.reddit.com/r/creativecoding/comments/kyl7io/genuary_day_16_circles_only/)


	import org.openrndr.application
	import org.openrndr.color.ColorRGBa
	import org.openrndr.color.mix
	import org.openrndr.color.rgb
	import org.openrndr.draw.isolatedWithTarget
	import org.openrndr.draw.renderTarget
	import org.openrndr.extra.compositor.compose
	import org.openrndr.extra.compositor.draw
	import org.openrndr.extra.compositor.post

ricardomatias / wgsl_3d_sdf.md

Created August 4, 2021 15:28 — forked from munrocket/wgsl_3d_sdf.md

3D SDF Primitives in WGSL

How to use this gist:

Build a sphere tracer with WebGPU (paper, paper2, youtube)
Create model with sdf functions from here
Add light and shadows
???
PROFIT

This code tested in Chrome and Firefox, should work on PC too. Press star and subscribe.

ricardomatias / FFT.c

Created April 3, 2020 15:58 — forked from lukicdarkoo/FFT.c

Basic implementation of Cooley-Tukey FFT algorithm in C++

	#include "FFT.h"

	void fft(int *x_in,
	std::complex<double> *x_out,
	int N) {

	// Make copy of array and apply window
	for (int i = 0; i < N; i++) {
	x_out[i] = std::complex<double>(x_in[i], 0);
	x_out[i] *= 1; // Window

ricardomatias / THREE_COLORSPACE_MANAGEMENT.md

Created February 18, 2020 16:26 — forked from donmccurdy/THREE_COLORSPACE_MANAGEMENT.md

Color management in three.js

A particularly clear example of gamma correct (left) and incorrect (right) rendering. Source.

Best practices

Textures with color data (.map, .emissiveMap, etc.) should be configured with .encoding = sRGBEncoding; all other textures use LinearEncoding.
Vertex colors should be stored in linear colorspace.

ricardomatias / ember-sandbox-service.js

Created February 1, 2020 10:31 — forked from devotox/ember-sandbox-service.js

Create A Javascript sandbox to execute custom code without giving access to things like window and outer contextThey still have a `this` object they can use across multiple executions to persist data

	import Service from '@ember/service';

	const has = () => true;

	const { console, WeakMap, Proxy, Symbol } = window;

	const get = (target, key) => key === Symbol.unscopables ? undefined : target[key];

	export default Service.extend({

ricardomatias / tilt.shift.glsl

Created January 7, 2020 13:56 — forked from ruby0x1/tilt.shift.glsl

Tilt shift shader, modified from something @grapefrukt gave me

	// Modified version of a tilt shift shader from Martin Jonasson (http://grapefrukt.com/)
	// Read http://notes.underscorediscovery.com/ for context on shaders and this file
	// License : MIT

	uniform sampler2D tex0;
	varying vec2 tcoord;
	varying vec4 color;

	/*
	Take note that blurring in a single pass (the two for loops below) is more expensive than separating

ricardomatias / ffmpeg.md

Created October 15, 2019 08:35 — forked from protrolium/ffmpeg.md

using ffmpeg to extract audio from video files

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

Ricardo Matias ricardomatias

3D SDF Primitives in WGSL

How to use this gist:

Color management in three.js

ffmpeg

Converting Audio into Different Formats / Sample Rates