noise – ページ 202 – プログラミング de 落描き

2021年2月3日2021年2月3日

Rotating orbs. Draw by openFrameworks

[ Video ]

[ About ]
Rotating orbs.

[ 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 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) {};

	int number_of_targets;
	vector<glm::vec2> target_list;
	vector<glm::vec3> color_list;
	ofShader shader;

	bool calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a);
};

#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 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) {};

int number_of_targets;

vector<glm::vec2> target_list;

vector<glm::vec3> color_list;

ofShader shader;

bool calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a);

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofSetCircleResolution(72);

	this->number_of_targets = 360;
	for (int i = 0; i < this->number_of_targets; i++) {

		this->target_list.push_back(glm::vec2());
		this->color_list.push_back(glm::vec3(1, 1, 1));
	}

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

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

	ofSeedRandom(39);

	int count = 0;
	int index = 0;
	int deg_start = ofGetFrameNum();
	for (int radius = 150; radius <= 300; radius += 15) {

		int deg_start = ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -180, 180);
		for (int deg = deg_start; deg < deg_start + 360; deg += 10) {

			this->target_list[index] = glm::vec2(360 + radius * cos(deg * DEG_TO_RAD), 360 + radius * sin(deg * DEG_TO_RAD));

			this->color_list[index] = glm::vec3(
				ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.05), 0, 1, 0.5, 1), 
				ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.05), 0, 1, 0.5, 1), 
				ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.05), 0, 1, 0.5, 1));

			index++;
		}
	}
}

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

	ofFill();
	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniform2fv("targets", &this->target_list[0].x, this->number_of_targets);
	this->shader.setUniform3fv("colors", &this->color_list[0].x, this->number_of_targets);

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

	this->shader.end();
}

//--------------------------------------------------------------
bool ofApp::calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a) {

	auto distance = glm::distance(location_1, location_2);
	if (distance > radius_1 + radius_2 || distance < radius_1 - radius_2) { return false; }

	theta = atan2(location_2.y - location_1.y, location_2.x - location_1.x);
	auto cos_a = (pow(distance, 2) + pow(radius_1, 2) - pow(radius_2, 2)) / (2 * distance * radius_1);
	a = acos(cos_a);
	return true;
}

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

	ofGLWindowSettings settings;
	settings.setGLVersion(3, 2);
	settings.setSize(720, 720);
	ofCreateWindow(settings);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofSetCircleResolution(72);

this->number_of_targets = 360;

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

this->target_list.push_back(glm::vec2());

this->color_list.push_back(glm::vec3(1, 1, 1));

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

int count = 0;

int index = 0;

int deg_start = ofGetFrameNum();

for (int radius = 150; radius <= 300; radius += 15) {

int deg_start = ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -180, 180);

for (int deg = deg_start; deg < deg_start + 360; deg += 10) {

this->target_list[index] = glm::vec2(360 + radius * cos(deg * DEG_TO_RAD), 360 + radius * sin(deg * DEG_TO_RAD));

this->color_list[index] = glm::vec3(

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.05), 0, 1, 0.5, 1),

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.05), 0, 1, 0.5, 1));

index++;

}

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

void ofApp::draw() {

ofFill();

this->shader.begin();

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

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

this->shader.setUniform2fv("targets", &this->target_list[0].x, this->number_of_targets);

this->shader.setUniform3fv("colors", &this->color_list[0].x, this->number_of_targets);

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

this->shader.end();

}

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

bool ofApp::calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a) {

auto distance = glm::distance(location_1, location_2);

if (distance > radius_1 + radius_2 || distance < radius_1 - radius_2) { return false; }

theta = atan2(location_2.y - location_1.y, location_2.x - location_1.x);

auto cos_a = (pow(distance, 2) + pow(radius_1, 2) - pow(radius_2, 2)) / (2 * distance * radius_1);

a = acos(cos_a);

return true;

}

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

int main() {

ofGLWindowSettings settings;

settings.setGLVersion(3, 2);

settings.setSize(720, 720);

ofCreateWindow(settings);

ofRunApp(new ofApp());

}

#version 150

uniform mat4 modelViewProjectionMatrix;
in vec4 position;

void main(){
	gl_Position = modelViewProjectionMatrix * position;
}

#version 150

uniform mat4 modelViewProjectionMatrix;

in vec4 position;

void main(){

gl_Position = modelViewProjectionMatrix * position;

}

#version 150

const int number_of_targets = 360;

uniform float time;
uniform vec2 resolution;
uniform vec2 targets[number_of_targets];
uniform vec3 colors[number_of_targets];

out vec4 outputColor;

void main() {

  vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);
  vec3 color = vec3(0.0);
  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);

    float v = 0.015 / length(p - t);
	float r = v * colors[i].x;
	float g = v * colors[i].y;
	float b = v * colors[i].z;
    vec3 c = vec3(smoothstep(0.05, 1.0, r), smoothstep(0.05, 1.0, g), smoothstep(0.05, 1.0, b));
    color += c;
  }

  outputColor = vec4(color, 1.0);
}

#version 150

const int number_of_targets = 360;

uniform float time;

uniform vec2 resolution;

uniform vec2 targets[number_of_targets];

uniform vec3 colors[number_of_targets];

out vec4 outputColor;

void main() {

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

vec3 color = vec3(0.0);

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);

float v = 0.015 / length(p - t);

float r = v * colors[i].x;

float g = v * colors[i].y;

float b = v * colors[i].z;

vec3 c = vec3(smoothstep(0.05, 1.0, r), smoothstep(0.05, 1.0, g), smoothstep(0.05, 1.0, b));

color += c;

}

outputColor = vec4(color, 1.0);

}

[ Link ]
https://github.com/junkiyoshi/Insta20210203

2021年2月2日2021年2月2日

Cross point log. Draw by openFrameworks

[ Video ]

[ About ]
Cross point log.

[ 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 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) {};

	int number_of_targets;
	vector<glm::vec2> target_list;
	vector<glm::vec3> color_list;
	ofShader shader;

	bool calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a);
};

#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 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) {};

int number_of_targets;

vector<glm::vec2> target_list;

vector<glm::vec3> color_list;

ofShader shader;

bool calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a);

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofSetCircleResolution(72);

	ofSetBackgroundAuto(false);

	this->number_of_targets = 150;
	for (int i = 0; i < this->number_of_targets; i++) {

		this->target_list.push_back(glm::vec2());
		this->color_list.push_back(glm::vec3(1, 1, 1));
	}

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

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

	ofSeedRandom(39);
}

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

	if (ofGetFrameNum() % 180 == 0) {
		
		ofBackground(0);
	}

	ofSetColor(255);
	vector<pair<glm::vec2, float>> circles;
	circles.push_back(make_pair(glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5), 230));
	for (int i = 0; i < 23; i++) {

		auto location = glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 50, ofGetWidth() - 50), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 50, ofGetHeight() - 50));
		auto radius = ofRandom(30, 60);

		auto circle = make_pair(location, radius);
		circles.push_back(circle);
	}

	vector<glm::vec2> tmp_target_list;
	vector<glm::vec3> tmp_color_list;
	for (auto circle : circles) {

		int p_1 = ofRandom(3);
		for (auto other : circles) {

			int p_2 = ofRandom(3);
			if (circle == other) { continue; }

			double theta, a;
			if (this->calculate_angle(circle.first, circle.second, other.first, other.second, theta, a)) {

				auto point_1 = circle.first + glm::vec2(circle.second * cos(theta + a), circle.second * sin(theta + a));
				auto point_2 = circle.first + glm::vec2(circle.second * cos(theta - a), circle.second * sin(theta - a));

				tmp_target_list.push_back(point_1);
				tmp_target_list.push_back(point_2);

				glm::vec3 tmp_color;
				switch (p_1)
				{
				case 0:
					tmp_color += glm::vec3(0.3, 0.2, 0.2);
					break;
				case 1:
					tmp_color += glm::vec3(0.2, 0.3, 0.2);
					break;
				case 2:
					tmp_color += glm::vec3(0.2, 0.2, 0.3);
					break;
				}

				switch (p_2)
				{
				case 0:
					tmp_color += glm::vec3(0.3, 0.2, 0.2);
					break;
				case 1:
					tmp_color += glm::vec3(0.2, 0.3, 0.2);
					break;
				case 2:
					tmp_color += glm::vec3(0.2, 0.2, 0.3);
					break;
				}

				tmp_color_list.push_back(tmp_color);
			}
		}
	}

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

		if (i < tmp_target_list.size()) {

			this->target_list[i] = tmp_target_list[i];
			this->color_list[i] = tmp_color_list[i / 2];
		}
		else {

			this->target_list[i] = glm::vec2();
			this->color_list[i] = glm::vec3();
		}
	}

	ofFill();
	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniform2fv("targets", &this->target_list[0].x, this->number_of_targets);
	this->shader.setUniform3fv("colors", &this->color_list[0].x, this->number_of_targets);

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

	this->shader.end();
}

//--------------------------------------------------------------
bool ofApp::calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a) {

	auto distance = glm::distance(location_1, location_2);
	if (distance > radius_1 + radius_2 || distance < radius_1 - radius_2) { return false; }

	theta = atan2(location_2.y - location_1.y, location_2.x - location_1.x);
	auto cos_a = (pow(distance, 2) + pow(radius_1, 2) - pow(radius_2, 2)) / (2 * distance * radius_1);
	a = acos(cos_a);
	return true;
}

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

	ofGLWindowSettings settings;
	settings.setGLVersion(3, 2);
	settings.setSize(720, 720);
	ofCreateWindow(settings);
	ofRunApp(new ofApp());
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofSetCircleResolution(72);

ofSetBackgroundAuto(false);

this->number_of_targets = 150;

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

this->target_list.push_back(glm::vec2());

this->color_list.push_back(glm::vec3(1, 1, 1));

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

if (ofGetFrameNum() % 180 == 0) {

ofBackground(0);

}

ofSetColor(255);

vector<pair<glm::vec2, float>> circles;

circles.push_back(make_pair(glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5), 230));

for (int i = 0; i < 23; i++) {

auto location = glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 50, ofGetWidth() - 50), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, 50, ofGetHeight() - 50));

auto radius = ofRandom(30, 60);

auto circle = make_pair(location, radius);

circles.push_back(circle);

}

vector<glm::vec2> tmp_target_list;

vector<glm::vec3> tmp_color_list;

for (auto circle : circles) {

int p_1 = ofRandom(3);

for (auto other : circles) {

int p_2 = ofRandom(3);

if (circle == other) { continue; }

double theta, a;

if (this->calculate_angle(circle.first, circle.second, other.first, other.second, theta, a)) {

auto point_1 = circle.first + glm::vec2(circle.second * cos(theta + a), circle.second * sin(theta + a));

auto point_2 = circle.first + glm::vec2(circle.second * cos(theta - a), circle.second * sin(theta - a));

tmp_target_list.push_back(point_1);

tmp_target_list.push_back(point_2);

glm::vec3 tmp_color;

switch (p_1)

{

case 0:

tmp_color += glm::vec3(0.3, 0.2, 0.2);

break;

case 1:

tmp_color += glm::vec3(0.2, 0.3, 0.2);

break;

case 2:

tmp_color += glm::vec3(0.2, 0.2, 0.3);

break;

}

switch (p_2)

{

case 0:

tmp_color += glm::vec3(0.3, 0.2, 0.2);

break;

case 1:

tmp_color += glm::vec3(0.2, 0.3, 0.2);

break;

case 2:

tmp_color += glm::vec3(0.2, 0.2, 0.3);

break;

}

tmp_color_list.push_back(tmp_color);

}

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

if (i < tmp_target_list.size()) {

this->target_list[i] = tmp_target_list[i];

this->color_list[i] = tmp_color_list[i / 2];

}

else {

this->target_list[i] = glm::vec2();

this->color_list[i] = glm::vec3();

}

ofFill();

this->shader.begin();

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

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

this->shader.setUniform2fv("targets", &this->target_list[0].x, this->number_of_targets);

this->shader.setUniform3fv("colors", &this->color_list[0].x, this->number_of_targets);

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

this->shader.end();

}

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

bool ofApp::calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a) {

auto distance = glm::distance(location_1, location_2);

if (distance > radius_1 + radius_2 || distance < radius_1 - radius_2) { return false; }

theta = atan2(location_2.y - location_1.y, location_2.x - location_1.x);

auto cos_a = (pow(distance, 2) + pow(radius_1, 2) - pow(radius_2, 2)) / (2 * distance * radius_1);

a = acos(cos_a);

return true;

}

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

int main() {

ofGLWindowSettings settings;

settings.setGLVersion(3, 2);

settings.setSize(720, 720);

ofCreateWindow(settings);

ofRunApp(new ofApp());

}

#version 150

uniform mat4 modelViewProjectionMatrix;
in vec4 position;

void main(){
	gl_Position = modelViewProjectionMatrix * position;
}

#version 150

uniform mat4 modelViewProjectionMatrix;

in vec4 position;

void main(){

gl_Position = modelViewProjectionMatrix * position;

}

#version 150

const int number_of_targets = 150;

uniform float time;
uniform vec2 resolution;
uniform vec2 targets[number_of_targets];
uniform vec3 colors[number_of_targets];

out vec4 outputColor;

void main() {

  vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);
  vec3 color = vec3(0.0);
  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);

    float v = 0.005 / length(p - t);
	float r = v * colors[i].x;
	float g = v * colors[i].y;
	float b = v * colors[i].z;
    vec3 c = vec3(smoothstep(0.05, 1.0, r), smoothstep(0.05, 1.0, g), smoothstep(0.05, 1.0, b));
    color += c;
  }

  outputColor = vec4(color, 1.0);
}

#version 150

const int number_of_targets = 150;

uniform float time;

uniform vec2 resolution;

uniform vec2 targets[number_of_targets];

uniform vec3 colors[number_of_targets];

out vec4 outputColor;

void main() {

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

vec3 color = vec3(0.0);

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);

float v = 0.005 / length(p - t);

float r = v * colors[i].x;

float g = v * colors[i].y;

float b = v * colors[i].z;

vec3 c = vec3(smoothstep(0.05, 1.0, r), smoothstep(0.05, 1.0, g), smoothstep(0.05, 1.0, b));

color += c;

}

outputColor = vec4(color, 1.0);

}

[ Link ]
https://github.com/junkiyoshi/Insta20210202

2021年1月29日2021年1月29日

Color orbs. Draw by openFrameworks

[ Video ]

[ About ]
Color orbs.

[ 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 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) {};

	int number_of_targets;
	vector<glm::vec2> target_list;
	vector<glm::vec3> color_list;
	ofShader shader;
};

#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 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) {};

int number_of_targets;

vector<glm::vec2> target_list;

vector<glm::vec3> color_list;

ofShader shader;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");
	
	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->number_of_targets = 30;
	for (int i = 0; i < this->number_of_targets; i++) {

		this->target_list.push_back(glm::vec2());
		this->color_list.push_back(glm::vec3());
	}

	this->shader.load("shader/shader.vert", "shader/shader.frag");
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

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

		auto location_noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		this->target_list[i] = glm::vec2(
			ofMap(ofNoise(location_noise_seed.x, ofGetFrameNum() * 0.0005), 0, 1, 30, ofGetWidth() - 30),
			ofMap(ofNoise(location_noise_seed.y, ofGetFrameNum() * 0.0005), 0, 1, 30, ofGetHeight() - 30));
		
		auto color_noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		this->color_list[i] = glm::vec3(
			ofMap(ofNoise(color_noise_seed.x, ofGetFrameNum() * 0.005), 0, 1, 0.25, 1),
			ofMap(ofNoise(color_noise_seed.y, ofGetFrameNum() * 0.005), 0, 1, 0.25, 1),
			ofMap(ofNoise(color_noise_seed.z, ofGetFrameNum() * 0.005), 0, 1, 0.25, 1));
	}
}

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

	ofFill();
	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniform2fv("targets", &this->target_list[0].x, this->number_of_targets);
	this->shader.setUniform3fv("colors", &this->color_list[0].x, this->number_of_targets);

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

	this->shader.end();

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

		ofSetColor(this->color_list[i].x * 255, this->color_list[i].y * 255, this->color_list[i].z * 255);

		ofBeginShape();
		for (int deg = 0; deg <= 360; deg += 1) {

			ofVertex(this->target_list[i] + glm::vec2(30 * cos(deg * DEG_TO_RAD), 30 * sin(deg * DEG_TO_RAD)));
		}
		for (int deg = 360; deg >= 0; deg -= 1) {

			ofVertex(this->target_list[i] + glm::vec2(33 * cos(deg * DEG_TO_RAD), 33 * sin(deg * DEG_TO_RAD)));
		}
		ofEndShape(true);
	}
}

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

	ofGLWindowSettings settings;
	settings.setGLVersion(3, 2);
	settings.setSize(720, 720);
	ofCreateWindow(settings);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->number_of_targets = 30;

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

this->target_list.push_back(glm::vec2());

this->color_list.push_back(glm::vec3());

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

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

auto location_noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

this->target_list[i] = glm::vec2(

ofMap(ofNoise(location_noise_seed.x, ofGetFrameNum() * 0.0005), 0, 1, 30, ofGetWidth() - 30),

ofMap(ofNoise(location_noise_seed.y, ofGetFrameNum() * 0.0005), 0, 1, 30, ofGetHeight() - 30));

auto color_noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

this->color_list[i] = glm::vec3(

ofMap(ofNoise(color_noise_seed.x, ofGetFrameNum() * 0.005), 0, 1, 0.25, 1),

ofMap(ofNoise(color_noise_seed.y, ofGetFrameNum() * 0.005), 0, 1, 0.25, 1),

ofMap(ofNoise(color_noise_seed.z, ofGetFrameNum() * 0.005), 0, 1, 0.25, 1));

}

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

void ofApp::draw() {

ofFill();

this->shader.begin();

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

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

this->shader.setUniform2fv("targets", &this->target_list[0].x, this->number_of_targets);

this->shader.setUniform3fv("colors", &this->color_list[0].x, this->number_of_targets);

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

this->shader.end();

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

ofSetColor(this->color_list[i].x * 255, this->color_list[i].y * 255, this->color_list[i].z * 255);

ofBeginShape();

for (int deg = 0; deg <= 360; deg += 1) {

ofVertex(this->target_list[i] + glm::vec2(30 * cos(deg * DEG_TO_RAD), 30 * sin(deg * DEG_TO_RAD)));

}

for (int deg = 360; deg >= 0; deg -= 1) {

ofVertex(this->target_list[i] + glm::vec2(33 * cos(deg * DEG_TO_RAD), 33 * sin(deg * DEG_TO_RAD)));

}

ofEndShape(true);

}

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

int main() {

ofGLWindowSettings settings;

settings.setGLVersion(3, 2);

settings.setSize(720, 720);

ofCreateWindow(settings);

ofRunApp(new ofApp());

}

#version 150

uniform mat4 modelViewProjectionMatrix;
in vec4 position;

void main(){
	gl_Position = modelViewProjectionMatrix * position;
}

#version 150

uniform mat4 modelViewProjectionMatrix;

in vec4 position;

void main(){

gl_Position = modelViewProjectionMatrix * position;

}

#version 150

const int number_of_targets = 30;

uniform float time;
uniform vec2 resolution;
uniform vec2 targets[number_of_targets];
uniform vec3 colors[number_of_targets];

out vec4 outputColor;

void main() {

  vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y);
  vec3 color = vec3(0.0);
  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);

    float v = 0.05 / length(p - t);
	float r = v * colors[i].x;
	float g = v * colors[i].y;
	float b = v * colors[i].z;
    vec3 c = vec3(smoothstep(0.05, 1.0, r), smoothstep(0.05, 1.0, g), smoothstep(0.05, 1.0, b));
    color += c;
  }

  outputColor = vec4(color, 1.0);
}

#version 150

const int number_of_targets = 30;

uniform float time;

uniform vec2 resolution;

uniform vec2 targets[number_of_targets];

uniform vec3 colors[number_of_targets];

out vec4 outputColor;

void main() {

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

vec3 color = vec3(0.0);

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);

float v = 0.05 / length(p - t);

float r = v * colors[i].x;

float g = v * colors[i].y;

float b = v * colors[i].z;

vec3 c = vec3(smoothstep(0.05, 1.0, r), smoothstep(0.05, 1.0, g), smoothstep(0.05, 1.0, b));

color += c;

}

outputColor = vec4(color, 1.0);

}

[ Link ]
https://github.com/junkiyoshi/Insta20210129

2025年7月
月	火	水	木	金	土	日
	1	2	3	4	5	6
7	8	9	10	11	12	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30	31