programming – ページ 440 – プログラミング de 落描き

2019年12月30日

Changing sound to tower size. openFrameworks

[ Video ]

[ About ]
音楽データから高さを変更。

Changing sound to tower size.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;

	ofSoundPlayer sound;
	vector<float> fft_smoothed;
	vector<vector<float>> log;
	int n_bands_to_get;

	ofMesh face_mesh, frame_mesh;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofSoundPlayer sound;

vector<float> fft_smoothed;

vector<vector<float>> log;

int n_bands_to_get;

ofMesh face_mesh, frame_mesh;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofEnableDepthTest();

	this->frame_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	this->sound.load("sound/Spring_In_My_Step.mp3");
	this->sound.play();

	this->n_bands_to_get = 60;
	for (int j = 0; j < this->n_bands_to_get; j++) {

		this->fft_smoothed.push_back(0);
	}

	for (int i = 0; i < 36; i++) {

		this->log.push_back(this->fft_smoothed);
	}
}

//--------------------------------------------------------------
void ofApp::update() {

	ofSoundUpdate();
	float* val = ofSoundGetSpectrum(this->n_bands_to_get);
	for (int i = 0; i < this->n_bands_to_get; i++) {

		this->fft_smoothed[i] *= 0.98f;
		if (this->fft_smoothed[i] < val[i]) {

			this->fft_smoothed[i] = val[i];
		}
	}

	log.push_back(this->fft_smoothed);
	if (log.size() > 36) {

		this->log.erase(this->log.begin());
	}

	this->face_mesh.clear();
	this->frame_mesh.clear();

	int radius_span = 5;
	int deg_span = 10;
	for (int radius = 100; radius < 300; radius += radius_span * 4) {

		for (int deg_start = 0; deg_start < 360; deg_start += deg_span) {

			int index_1 = ofMap(radius, 100, 300, 1, 10);
			int index_2 = ofMap(deg_start, 0, 360, 0, 36);

			auto z = log[index_2][index_1] * 150;
			int param_index = this->face_mesh.getNumVertices();
			for (int deg = deg_start; deg < deg_start + deg_span; deg++) {

				int index = this->face_mesh.getNumVertices();

				vector<glm::vec3> vertices;

				vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));
				vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), z));
				vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), z));
				vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));

				vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));

				this->face_mesh.addVertices(vertices);

				this->face_mesh.addIndex(index + 0);	this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 2);
				this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 3);

				this->face_mesh.addIndex(index + 4);	this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6);
				this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 6); this->face_mesh.addIndex(index + 7);

				this->face_mesh.addIndex(index + 0);	this->face_mesh.addIndex(index + 3); this->face_mesh.addIndex(index + 7);
				this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 7);

				this->face_mesh.addIndex(index + 1);	this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 6);
				this->face_mesh.addIndex(index + 1);	this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6);

				this->frame_mesh.addVertices(vertices);

				this->frame_mesh.addIndex(index + 0); this->frame_mesh.addIndex(index + 3);
				this->frame_mesh.addIndex(index + 4); this->frame_mesh.addIndex(index + 7);

				this->frame_mesh.addIndex(index + 1); this->frame_mesh.addIndex(index + 2);
				this->frame_mesh.addIndex(index + 5); this->frame_mesh.addIndex(index + 6);
			}

			this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 1); this->face_mesh.addIndex(param_index + 5);
			this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 4); this->face_mesh.addIndex(param_index + 5);

			this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 1);
			this->frame_mesh.addIndex(param_index + 4); this->frame_mesh.addIndex(param_index + 5);

			this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 4);
			this->frame_mesh.addIndex(param_index + 1); this->frame_mesh.addIndex(param_index + 5);

			param_index = this->face_mesh.getNumVertices() - 8;

			this->face_mesh.addIndex(param_index + 2); this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6);
			this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6); this->face_mesh.addIndex(param_index + 7);

			this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 3);
			this->frame_mesh.addIndex(param_index + 6); this->frame_mesh.addIndex(param_index + 7);

			this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 6);
			this->frame_mesh.addIndex(param_index + 3); this->frame_mesh.addIndex(param_index + 7);
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	ofRotateZ(270);

	ofSetColor(39);
	this->face_mesh.draw();

	ofSetColor(239);
	this->frame_mesh.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

this->frame_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

this->sound.load("sound/Spring_In_My_Step.mp3");

this->sound.play();

this->n_bands_to_get = 60;

for (int j = 0; j < this->n_bands_to_get; j++) {

this->fft_smoothed.push_back(0);

}

for (int i = 0; i < 36; i++) {

this->log.push_back(this->fft_smoothed);

}

//--------------------------------------------------------------

void ofApp::update() {

ofSoundUpdate();

float* val = ofSoundGetSpectrum(this->n_bands_to_get);

for (int i = 0; i < this->n_bands_to_get; i++) {

this->fft_smoothed[i] *= 0.98f;

if (this->fft_smoothed[i] < val[i]) {

this->fft_smoothed[i] = val[i];

}

log.push_back(this->fft_smoothed);

if (log.size() > 36) {

this->log.erase(this->log.begin());

}

this->face_mesh.clear();

this->frame_mesh.clear();

int radius_span = 5;

int deg_span = 10;

for (int radius = 100; radius < 300; radius += radius_span * 4) {

for (int deg_start = 0; deg_start < 360; deg_start += deg_span) {

int index_1 = ofMap(radius, 100, 300, 1, 10);

int index_2 = ofMap(deg_start, 0, 360, 0, 36);

auto z = log[index_2][index_1] * 150;

int param_index = this->face_mesh.getNumVertices();

for (int deg = deg_start; deg < deg_start + deg_span; deg++) {

int index = this->face_mesh.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));

vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), z));

vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));

this->face_mesh.addVertices(vertices);

this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 2);

this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 3);

this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6);

this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 6); this->face_mesh.addIndex(index + 7);

this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 3); this->face_mesh.addIndex(index + 7);

this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 7);

this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 6);

this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6);

this->frame_mesh.addVertices(vertices);

this->frame_mesh.addIndex(index + 0); this->frame_mesh.addIndex(index + 3);

this->frame_mesh.addIndex(index + 4); this->frame_mesh.addIndex(index + 7);

this->frame_mesh.addIndex(index + 1); this->frame_mesh.addIndex(index + 2);

this->frame_mesh.addIndex(index + 5); this->frame_mesh.addIndex(index + 6);

}

this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 1); this->face_mesh.addIndex(param_index + 5);

this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 4); this->face_mesh.addIndex(param_index + 5);

this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 1);

this->frame_mesh.addIndex(param_index + 4); this->frame_mesh.addIndex(param_index + 5);

this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 4);

this->frame_mesh.addIndex(param_index + 1); this->frame_mesh.addIndex(param_index + 5);

param_index = this->face_mesh.getNumVertices() - 8;

this->face_mesh.addIndex(param_index + 2); this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6);

this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6); this->face_mesh.addIndex(param_index + 7);

this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 3);

this->frame_mesh.addIndex(param_index + 6); this->frame_mesh.addIndex(param_index + 7);

this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 6);

this->frame_mesh.addIndex(param_index + 3); this->frame_mesh.addIndex(param_index + 7);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofRotateZ(270);

ofSetColor(39);

this->face_mesh.draw();

ofSetColor(239);

this->frame_mesh.drawWireframe();

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191230

2019年12月29日

Round the face. openFrameworks

[ Video ]

[ About ]
OpenCVで顔を検出して、Shaderで画像処理。

Round the face.

[ Source ]

#pragma once
#include "ofMain.h"
#include <opencv2/opencv.hpp>

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	cv::Size cap_size;
	cv::VideoCapture cap;
	cv::Mat frame;
	ofImage image;

	cv::CascadeClassifier face_cascade;

	int number_of_targets;
	vector<glm::vec4> targets;
	vector<glm::vec4> sizes;

	ofShader shader;
};

#pragma once

#include "ofMain.h"

#include <opencv2/opencv.hpp>

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

cv::Size cap_size;

cv::VideoCapture cap;

cv::Mat frame;

ofImage image;

cv::CascadeClassifier face_cascade;

int number_of_targets;

vector<glm::vec4> targets;

vector<glm::vec4> sizes;

ofShader shader;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	this->cap_size = cv::Size(640, 360);

	this->cap.open(0);
	this->cap.set(cv::CAP_PROP_FPS, 30);
	this->cap.set(cv::CAP_PROP_FRAME_WIDTH, this->cap_size.width);
	this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, this->cap_size.height);

	this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
	this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

	this->number_of_targets = 2;
	for (int i = 0; i < this->number_of_targets; i++) {

		this->targets.push_back(glm::vec4(0.f, 0.f, 0.f, 0.f));
		this->sizes.push_back(glm::vec4(0.f, 0.f, 0.f, 0.f));
	}

	this->face_cascade.load("D:\\opencv_4.1.2\\build\\install\\etc\\haarcascades\\haarcascade_frontalface_alt2.xml");
	this->shader.load("shader/shader.vert", "shader/shader.frag");
}
//--------------------------------------------------------------
void ofApp::update() {

	for (int i = 0; i < this->number_of_targets; i++) {

		this->targets[i] = glm::vec4(0.f, 0.f, 0.f, 0.f);
		this->sizes[i] = glm::vec4(0.f, 0.f, 0.f, 0.f);
	}

	this->cap >> this->frame;
	cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2RGB);
	this->image.update();

	cv::Mat gray_frame, small_frame;
	cv::cvtColor(this->frame, gray_frame, cv::COLOR_RGB2GRAY);
	cv::resize(gray_frame, small_frame, cv::Size(this->cap_size.width * 0.5, this->cap_size.height * 0.5));

	vector<cv::Rect> faces;
	this->face_cascade.detectMultiScale(small_frame, faces);

	int face_count = 0;
	for (cv::Rect r : faces) {

		this->targets[face_count] = glm::vec4(r.x * 2.f + r.width, r.y * 2.f + r.height, 0.f, 0.f);
		float value = r.width < r.height ? r.width : r.height;
		this->sizes[face_count] = glm::vec4(value, value, 0.f, 0.f);
		face_count++;

		if (face_count >= this->number_of_targets) {

			break;
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniformTexture("tex", this->image, 1);
	this->shader.setUniform4fv("targets", &this->targets[0].x, this->number_of_targets);
	this->shader.setUniform4fv("sizes", &this->sizes[0].x, this->number_of_targets);

	ofDrawRectangle(0, 0, ofGetWidth(), ofGetHeight());

	this->shader.end();
}

//--------------------------------------------------------------
int main() {

	ofGLWindowSettings settings;
	settings.setGLVersion(3, 2);
	settings.setSize(640, 360);
	ofCreateWindow(settings);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

this->cap_size = cv::Size(640, 360);

this->cap.open(0);

this->cap.set(cv::CAP_PROP_FPS, 30);

this->cap.set(cv::CAP_PROP_FRAME_WIDTH, this->cap_size.width);

this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, this->cap_size.height);

this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);

this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

this->number_of_targets = 2;

for (int i = 0; i < this->number_of_targets; i++) {

this->targets.push_back(glm::vec4(0.f, 0.f, 0.f, 0.f));

this->sizes.push_back(glm::vec4(0.f, 0.f, 0.f, 0.f));

}

this->face_cascade.load("D:\\opencv_4.1.2\\build\\install\\etc\\haarcascades\\haarcascade_frontalface_alt2.xml");

this->shader.load("shader/shader.vert", "shader/shader.frag");

}

//--------------------------------------------------------------

void ofApp::update() {

for (int i = 0; i < this->number_of_targets; i++) {

this->targets[i] = glm::vec4(0.f, 0.f, 0.f, 0.f);

this->sizes[i] = glm::vec4(0.f, 0.f, 0.f, 0.f);

}

this->cap >> this->frame;

cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2RGB);

this->image.update();

cv::Mat gray_frame, small_frame;

cv::cvtColor(this->frame, gray_frame, cv::COLOR_RGB2GRAY);

cv::resize(gray_frame, small_frame, cv::Size(this->cap_size.width * 0.5, this->cap_size.height * 0.5));

vector<cv::Rect> faces;

this->face_cascade.detectMultiScale(small_frame, faces);

int face_count = 0;

for (cv::Rect r : faces) {

this->targets[face_count] = glm::vec4(r.x * 2.f + r.width, r.y * 2.f + r.height, 0.f, 0.f);

float value = r.width < r.height ? r.width : r.height;

this->sizes[face_count] = glm::vec4(value, value, 0.f, 0.f);

face_count++;

if (face_count >= this->number_of_targets) {

break;

}

//--------------------------------------------------------------

void ofApp::draw() {

this->shader.begin();

this->shader.setUniform1f("time", ofGetElapsedTimef());

this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());

this->shader.setUniformTexture("tex", this->image, 1);

this->shader.setUniform4fv("targets", &this->targets[0].x, this->number_of_targets);

this->shader.setUniform4fv("sizes", &this->sizes[0].x, this->number_of_targets);

ofDrawRectangle(0, 0, ofGetWidth(), ofGetHeight());

this->shader.end();

}

//--------------------------------------------------------------

int main() {

ofGLWindowSettings settings;

settings.setGLVersion(3, 2);

settings.setSize(640, 360);

ofCreateWindow(settings);

ofRunApp(new ofApp());

}

#version 150

uniform mat4 modelViewProjectionMatrix;
in vec4 position;
in vec2 texcoord;
out vec2 texCoordVarying;

void main(){

	texCoordVarying = texcoord;
	gl_Position = modelViewProjectionMatrix * position;
}

#version 150

uniform mat4 modelViewProjectionMatrix;

in vec4 position;

in vec2 texcoord;

out vec2 texCoordVarying;

void main(){

texCoordVarying = texcoord;

gl_Position = modelViewProjectionMatrix * position;

}

#version 150

const int number_of_targets = 2;

uniform float time;
uniform vec2 resolution;
uniform sampler2DRect tex;
uniform vec4 targets[number_of_targets];
uniform vec4 sizes[number_of_targets];

in vec2 texCoordVarying;
out vec4 outputColor;

void main() {

  vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);

  for(int i = 0; i < number_of_targets; i++){

    vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;
    t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

    vec2 sz = vec2(sizes[i].x, -sizes[i].y) / min(resolution.x, resolution.y) * 2.0;

    vec2 q = p - t;
    float d = length(q);
    if(d < length(sz)){

      float a = atan(q.y, q.x);
      float x = t.x + cos(a + time * 3 + d * 15) * d;
      float y = t.y + sin(a + time * 3 + d * 15) * d;
      p = vec2(x, y);
    }
  }

  vec4 color = texture(tex, vec2((p.x * min(resolution.x, resolution.y) + resolution.x) * 0.5, resolution.y - (p.y * min(resolution.x, resolution.y) + resolution.y) * 0.5));
  
  float mono = dot(color.rgb, vec3(1.0/3.0));
  outputColor = vec4(vec3(mono), color.a);

}

#version 150

const int number_of_targets = 2;

uniform float time;

uniform vec2 resolution;

uniform sampler2DRect tex;

uniform vec4 targets[number_of_targets];

uniform vec4 sizes[number_of_targets];

in vec2 texCoordVarying;

out vec4 outputColor;

void main() {

vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);

for(int i = 0; i < number_of_targets; i++){

vec2 t = vec2(targets[i].x, -targets[i].y) / min(resolution.x, resolution.y) * 2.0;

t.xy += vec2(-resolution.x, resolution.y) / min(resolution.x, resolution.y);

vec2 sz = vec2(sizes[i].x, -sizes[i].y) / min(resolution.x, resolution.y) * 2.0;

vec2 q = p - t;

float d = length(q);

if(d < length(sz)){

float a = atan(q.y, q.x);

float x = t.x + cos(a + time * 3 + d * 15) * d;

float y = t.y + sin(a + time * 3 + d * 15) * d;

p = vec2(x, y);

}

vec4 color = texture(tex, vec2((p.x * min(resolution.x, resolution.y) + resolution.x) * 0.5, resolution.y - (p.y * min(resolution.x, resolution.y) + resolution.y) * 0.5));

float mono = dot(color.rgb, vec3(1.0/3.0));

outputColor = vec4(vec3(mono), color.a);

}

[ Link ]
https://github.com/junkiyoshi/Insta20191229

2019年12月28日2019年12月28日

Visualize velocity from LeapMotion. openFrameworks

[ Video ]

[ About ]
LeapMotionで取得した手の移動速度で可視化。

Visualize velocity from LeapMotion.

[ Source ]

#pragma once
#include "ofMain.h"

// Leap Motion SDK
#include "Leap.h"
#pragma comment(lib, "Leap.lib")

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	// Leap Motion
	Leap::Controller leap;
	ofEasyCam cam;
	vector<glm::vec3> location_list;
	vector<glm::vec3> velocity_list;
};

#pragma once

#include "ofMain.h"

// Leap Motion SDK

#include "Leap.h"

#pragma comment(lib, "Leap.lib")

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

// Leap Motion

Leap::Controller leap;

ofEasyCam cam;

vector<glm::vec3> location_list;

vector<glm::vec3> velocity_list;

};

#include "ofApp.h"	

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

//--------------------------------------------------------------
void ofApp::update() {

	Leap::Frame frame = this->leap.frame();
	for (Leap::Hand hand : frame.hands()) {

		auto velocity = glm::vec3(hand.palmVelocity().x * -1, hand.palmVelocity().y * -1, hand.palmVelocity().z);
		auto location = glm::vec3(
				ofMap(hand.palmPosition().x, -300, 300, -ofGetWidth() * 0.5, ofGetWidth() * 0.5),
				ofMap(hand.palmPosition().y, 0, 300, -ofGetHeight() * 0.5, ofGetHeight() * 0.5),
				hand.palmPosition().z);

		auto future = location + velocity * 100;
		auto random_deg_1 = ofRandom(360);
		auto random_deg_2 = ofRandom(360);
		future += glm::vec3(
			100 * cos(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),
			100 * sin(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),
			100 * cos(random_deg_2 * DEG_TO_RAD)
		);
		auto future_distance = future - location;

		this->location_list.push_back(location);
		this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(velocity * 0.05));
	}

	for (int i = this->location_list.size() - 1; i > -1; i--) {

		this->location_list[i] += this->velocity_list[i];
		this->velocity_list[i] *= 1.01;

		if (glm::length(this->location_list[i]) > 720) {

			this->location_list.erase(this->location_list.begin() + i);
			this->velocity_list.erase(this->velocity_list.begin() + i);
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();

	for (auto& location : this->location_list) {

		ofDrawSphere(location, 5);
		for (auto& other : this->location_list) {

			if (location == other) continue;

			if (glm::distance(location, other) < 100) {

				ofDrawLine(location, other);
			}
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(3);

ofEnableDepthTest();

}

//--------------------------------------------------------------

void ofApp::update() {

Leap::Frame frame = this->leap.frame();

for (Leap::Hand hand : frame.hands()) {

auto velocity = glm::vec3(hand.palmVelocity().x * -1, hand.palmVelocity().y * -1, hand.palmVelocity().z);

auto location = glm::vec3(

ofMap(hand.palmPosition().x, -300, 300, -ofGetWidth() * 0.5, ofGetWidth() * 0.5),

ofMap(hand.palmPosition().y, 0, 300, -ofGetHeight() * 0.5, ofGetHeight() * 0.5),

hand.palmPosition().z);

auto future = location + velocity * 100;

auto random_deg_1 = ofRandom(360);

auto random_deg_2 = ofRandom(360);

future += glm::vec3(

100 * cos(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),

100 * sin(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),

100 * cos(random_deg_2 * DEG_TO_RAD)

);

auto future_distance = future - location;

this->location_list.push_back(location);

this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(velocity * 0.05));

}

for (int i = this->location_list.size() - 1; i > -1; i--) {

this->location_list[i] += this->velocity_list[i];

this->velocity_list[i] *= 1.01;

if (glm::length(this->location_list[i]) > 720) {

this->location_list.erase(this->location_list.begin() + i);

this->velocity_list.erase(this->velocity_list.begin() + i);

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

for (auto& location : this->location_list) {

ofDrawSphere(location, 5);

for (auto& other : this->location_list) {

if (location == other) continue;

if (glm::distance(location, other) < 100) {

ofDrawLine(location, other);

}

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191228

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