プログラミング de 落描き – ページ 722 – クリエイティブ・コーディングによる生成物とソース

2019年3月26日2019年3月26日

Overlap and invert. openFrameworks

[ Video ]

[ About ]
重なると反転

Overlap and invert.

[ 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) {};

	glm::vec2 make_point(int len, int param);

	ofShader shader;
	ofFbo tex1;
	ofFbo tex2;
};

#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) {};

glm::vec2 make_point(int len, int param);

ofShader shader;

ofFbo tex1;

ofFbo tex2;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofSetColor(0);

	this->shader.load("shader/shader.vert", "shader/shader.frag");
	this->tex1.allocate(ofGetWidth(), ofGetHeight());
	this->tex2.allocate(ofGetWidth(), ofGetHeight());

	this->tex1.begin();
	ofClear(0);

	ofBeginShape();
	for (int deg = 0; deg < 360; deg += 5) {

		ofVertex(250 * cos(deg * DEG_TO_RAD) + ofGetWidth() * 0.5, 250 * sin(deg * DEG_TO_RAD) + ofGetHeight() * 0.5);
	}
	ofEndShape();

	this->tex1.end();
}

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

	ofSeedRandom(39);

	this->tex2.begin();
	ofClear(0);

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	int size = ofGetWidth();
	for (int i = 0; i < 8; i++) {
			
		int line_param = ofRandom(1, 5);
		int start_param = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005) * 100;
		vector<glm::vec2> vertices;
		for (int param = start_param; param < start_param + line_param; param++) {

			vertices.push_back(glm::vec2(this->make_point(size * 0.95, param)));
		}

		start_param += 50 + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -15, 15);
		for (int param = start_param; param < start_param + line_param; param++) {

			vertices.push_back(glm::vec2(this->make_point(size * 0.95, param)));
		}

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);
	}

	this->tex2.end();
}

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

	ofFill();
	this->shader.begin();
	this->shader.setUniform1f("time", ofGetElapsedTimef());
	this->shader.setUniform2f("resolution", ofGetWidth(), ofGetHeight());
	this->shader.setUniformTexture("tex1", this->tex1.getTexture(), 1);
	this->shader.setUniformTexture("tex2", this->tex2.getTexture(), 2);

	ofDrawRectangle(glm::vec2(0, 0), ofGetWidth(), ofGetHeight());

	this->shader.end();
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(3);

ofSetColor(0);

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

this->tex1.allocate(ofGetWidth(), ofGetHeight());

this->tex2.allocate(ofGetWidth(), ofGetHeight());

this->tex1.begin();

ofClear(0);

ofBeginShape();

for (int deg = 0; deg < 360; deg += 5) {

ofVertex(250 * cos(deg * DEG_TO_RAD) + ofGetWidth() * 0.5, 250 * sin(deg * DEG_TO_RAD) + ofGetHeight() * 0.5);

}

ofEndShape();

this->tex1.end();

}

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

void ofApp::update() {

ofSeedRandom(39);

this->tex2.begin();

ofClear(0);

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

int size = ofGetWidth();

for (int i = 0; i < 8; i++) {

int line_param = ofRandom(1, 5);

int start_param = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005) * 100;

vector<glm::vec2> vertices;

for (int param = start_param; param < start_param + line_param; param++) {

vertices.push_back(glm::vec2(this->make_point(size * 0.95, param)));

}

start_param += 50 + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -15, 15);

for (int param = start_param; param < start_param + line_param; param++) {

vertices.push_back(glm::vec2(this->make_point(size * 0.95, param)));

}

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

this->tex2.end();

}

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

void ofApp::draw() {

ofFill();

this->shader.begin();

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

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

this->shader.setUniformTexture("tex1", this->tex1.getTexture(), 1);

this->shader.setUniformTexture("tex2", this->tex2.getTexture(), 2);

ofDrawRectangle(glm::vec2(0, 0), ofGetWidth(), ofGetHeight());

this->shader.end();

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

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

uniform float time;
uniform vec2 resolution;
uniform sampler2DRect tex1;
uniform sampler2DRect tex2;

in vec2 texCoordVarying;
out vec4 outputColor;

void main() {

  vec4 t1 = texture(tex1, vec2(gl_FragCoord.x, resolution.y - gl_FragCoord.y));
  vec4 t2 = texture(tex2, vec2(gl_FragCoord.x, resolution.y - gl_FragCoord.y));
  
  vec4 c;
  if(t1 == t2){
  	
  	c = vec4(vec3(0.937), 1.0);
  }else{
  
  	c = vec4(vec3(0.153), 1.0);
  }
  
  outputColor = c;
}

#version 150

uniform float time;

uniform vec2 resolution;

uniform sampler2DRect tex1;

uniform sampler2DRect tex2;

in vec2 texCoordVarying;

out vec4 outputColor;

void main() {

vec4 t1 = texture(tex1, vec2(gl_FragCoord.x, resolution.y - gl_FragCoord.y));

vec4 t2 = texture(tex2, vec2(gl_FragCoord.x, resolution.y - gl_FragCoord.y));

vec4 c;

if(t1 == t2){

c = vec4(vec3(0.937), 1.0);

}else{

c = vec4(vec3(0.153), 1.0);

}

outputColor = c;

}

[ Link ]
https://github.com/junkiyoshi/Insta20190326

2019年3月25日2019年3月25日

Surface of torus part 2. openFrameworks

[ Video ]

[ About ]
トーラス面遊びその2

SSurface of torus part 2.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;

};

#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) {};

glm::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

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

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	glm::vec3 point_base = glm::vec3(300 * cos((2 * ofGetFrameNum() % 360) * DEG_TO_RAD), 300 * sin((2 * ofGetFrameNum() % 360) * DEG_TO_RAD), 0);
	for (int v = 0; v < 360; v += 10) {

		for (int u = 0; u < 360; u += 20) {

			glm::vec3 point = glm::vec3(300 * cos(v * DEG_TO_RAD), 300 * sin(v * DEG_TO_RAD), 0);

			float r = 50;
			float noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01);
			float distance = glm::distance(point, point_base);
			if (distance < 200) {
				
				float noise_param = ofMap(distance, 200, 0, 0, 1);
				r += 150 * (noise_value * noise_param);
			}
			
			ofSetColor(39);
			ofFill();

			ofBeginShape();
			ofVertex(this->make_point(300, r, u - 10, v - 5));
			ofVertex(this->make_point(300, r, u + 10, v - 5));
			ofVertex(this->make_point(300, r, u + 10, v + 5));
			ofVertex(this->make_point(300, r, u - 10, v + 5));
			ofEndShape(true);

			ofSetColor(239);
			ofNoFill();

			ofBeginShape();
			ofVertex(this->make_point(300, r, u - 9.9, v - 4.9));
			ofVertex(this->make_point(300, r, u + 9.9, v - 4.9));
			ofVertex(this->make_point(300, r, u + 9.9, v + 4.9));
			ofVertex(this->make_point(300, r, u - 9.9, v + 4.9));
			ofEndShape(true);
		}
	}

	ofDrawSphere(point_base, 10);

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	float x = (R + r * cos(u)) * cos(v);
	float y = (R + r * cos(u)) * sin(v);
	float z = r * sin(u);

	return glm::vec3(x, y, z);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

glm::vec3 point_base = glm::vec3(300 * cos((2 * ofGetFrameNum() % 360) * DEG_TO_RAD), 300 * sin((2 * ofGetFrameNum() % 360) * DEG_TO_RAD), 0);

for (int v = 0; v < 360; v += 10) {

for (int u = 0; u < 360; u += 20) {

glm::vec3 point = glm::vec3(300 * cos(v * DEG_TO_RAD), 300 * sin(v * DEG_TO_RAD), 0);

float r = 50;

float noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01);

float distance = glm::distance(point, point_base);

if (distance < 200) {

float noise_param = ofMap(distance, 200, 0, 0, 1);

r += 150 * (noise_value * noise_param);

}

ofSetColor(39);

ofFill();

ofBeginShape();

ofVertex(this->make_point(300, r, u - 10, v - 5));

ofVertex(this->make_point(300, r, u + 10, v - 5));

ofVertex(this->make_point(300, r, u + 10, v + 5));

ofVertex(this->make_point(300, r, u - 10, v + 5));

ofEndShape(true);

ofSetColor(239);

ofNoFill();

ofBeginShape();

ofVertex(this->make_point(300, r, u - 9.9, v - 4.9));

ofVertex(this->make_point(300, r, u + 9.9, v - 4.9));

ofVertex(this->make_point(300, r, u + 9.9, v + 4.9));

ofVertex(this->make_point(300, r, u - 9.9, v + 4.9));

ofEndShape(true);

}

ofDrawSphere(point_base, 10);

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

float x = (R + r * cos(u)) * cos(v);

float y = (R + r * cos(u)) * sin(v);

float z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190325

2019年3月24日2019年3月22日

Surface of torus. openFrameworks

[ Video ]

[ About ]
トーラスの面遊び。

Surface of torus.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;

};

#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) {};

glm::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

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

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	ofColor color;
	for (int v = 0; v < 360; v += 10) {

		for (int u = 0; u < 360; u += 20) {

			float noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01);
			float r = 50;
			if (noise_value > 0.65) {
			
				r = 50 + 100 * (noise_value - 0.65);
			}

			ofSetColor(239);
			ofFill();

			ofBeginShape();
			ofVertex(this->make_point(300, r, u - 10, v - 5));
			ofVertex(this->make_point(300, r, u + 10, v - 5));
			ofVertex(this->make_point(300, r, u + 10, v + 5));
			ofVertex(this->make_point(300, r, u - 10, v + 5));
			ofEndShape(true);

			ofSetColor(39);
			ofNoFill();

			ofBeginShape();
			ofVertex(this->make_point(300, r, u - 9.9, v - 4.9));
			ofVertex(this->make_point(300, r, u + 9.9, v - 4.9));
			ofVertex(this->make_point(300, r, u + 9.9, v + 4.9));
			ofVertex(this->make_point(300, r, u - 9.9, v + 4.9));
			ofEndShape(true);
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	float x = (R + r * cos(u)) * cos(v);
	float y = (R + r * cos(u)) * sin(v);
	float z = r * sin(u);

	return glm::vec3(x, y, z);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofColor color;

for (int v = 0; v < 360; v += 10) {

for (int u = 0; u < 360; u += 20) {

float noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01);

float r = 50;

if (noise_value > 0.65) {

r = 50 + 100 * (noise_value - 0.65);

}

ofSetColor(239);

ofFill();

ofBeginShape();

ofVertex(this->make_point(300, r, u - 10, v - 5));

ofVertex(this->make_point(300, r, u + 10, v - 5));

ofVertex(this->make_point(300, r, u + 10, v + 5));

ofVertex(this->make_point(300, r, u - 10, v + 5));

ofEndShape(true);

ofSetColor(39);

ofNoFill();

ofBeginShape();

ofVertex(this->make_point(300, r, u - 9.9, v - 4.9));

ofVertex(this->make_point(300, r, u + 9.9, v - 4.9));

ofVertex(this->make_point(300, r, u + 9.9, v + 4.9));

ofVertex(this->make_point(300, r, u - 9.9, v + 4.9));

ofEndShape(true);

}

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

float x = (R + r * cos(u)) * cos(v);

float y = (R + r * cos(u)) * sin(v);

float z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190324

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