openframeworks – ページ 332 – プログラミング de 落描き

2020年11月23日2020年11月23日

The Sphere of Spines. Draw by openFrameworks

[ Video ]

[ About ]
棘の球体。

The Sphere of Spines.

[ 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;
	ofIcoSpherePrimitive ico_sphere;
	ofMesh 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;

ofIcoSpherePrimitive ico_sphere;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1);
	ofEnableDepthTest();

	this->ico_sphere = ofIcoSpherePrimitive(150, 3);
}

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

	this->mesh.clear();
	auto triangle_list = this->ico_sphere.getMesh().getUniqueFaces();

	for (auto& triangle : triangle_list) {

		glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		auto noise_value = ofNoise(avg.x * 0.008, avg.y * 0.008, avg.z * 0.008, ofGetFrameNum() * 0.003);

		float noise_radius = 150;
		if (noise_value > 0.48 && noise_value < 0.52) {

			noise_radius = ofMap(noise_value, 0.48, 0.52, 150, 250);
		}
		else if(noise_value >= 0.52) {

			noise_radius = 250;
		}

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

		this->mesh.addVertex(glm::normalize(avg) * (noise_radius + 25));
		this->mesh.addVertex(glm::normalize(triangle.getVertex(0)) * noise_radius);
		this->mesh.addVertex(glm::normalize(triangle.getVertex(1)) * noise_radius);
		this->mesh.addVertex(glm::normalize(triangle.getVertex(2)) * noise_radius);

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

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

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

		this->mesh.addIndex(index + 1);
		this->mesh.addIndex(index + 2);
		this->mesh.addIndex(index + 3);
	}
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.43);
	ofRotateY(ofGetFrameNum() * 0.65);

	ofSetColor(39);
	this->mesh.drawFaces();

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

	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);

ofSetLineWidth(1);

ofEnableDepthTest();

this->ico_sphere = ofIcoSpherePrimitive(150, 3);

}

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

void ofApp::update() {

this->mesh.clear();

auto triangle_list = this->ico_sphere.getMesh().getUniqueFaces();

for (auto& triangle : triangle_list) {

glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

auto noise_value = ofNoise(avg.x * 0.008, avg.y * 0.008, avg.z * 0.008, ofGetFrameNum() * 0.003);

float noise_radius = 150;

if (noise_value > 0.48 && noise_value < 0.52) {

noise_radius = ofMap(noise_value, 0.48, 0.52, 150, 250);

}

else if(noise_value >= 0.52) {

noise_radius = 250;

}

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

this->mesh.addVertex(glm::normalize(avg) * (noise_radius + 25));

this->mesh.addVertex(glm::normalize(triangle.getVertex(0)) * noise_radius);

this->mesh.addVertex(glm::normalize(triangle.getVertex(1)) * noise_radius);

this->mesh.addVertex(glm::normalize(triangle.getVertex(2)) * noise_radius);

this->mesh.addIndex(index + 0);

this->mesh.addIndex(index + 1);

this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 0);

this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 3);

this->mesh.addIndex(index + 0);

this->mesh.addIndex(index + 1);

this->mesh.addIndex(index + 3);

this->mesh.addIndex(index + 1);

this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 3);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.43);

ofRotateY(ofGetFrameNum() * 0.65);

ofSetColor(39);

this->mesh.drawFaces();

ofSetColor(239);

this->mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201123

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2020年11月21日

Noise cube. Draw by openFrameworks

[ Video ]

[ About ]
ノイズ・キューブ。

Noise cube.

[ 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

	auto size = 30;
	for (int base_x = -600; base_x <= 600; base_x += 600) {

		for (int base_y = -600; base_y <= 600; base_y += 600) {

			ofPushMatrix();
			ofTranslate(base_x, base_y);

			ofRotateX(ofGetFrameNum() * 0.43);
			ofRotateY(ofGetFrameNum() * 0.65);

			for (int len = 150; len <= 300; len += 150) {

				for (int i = 0; i < 6; i += 1) {

					if (i < 4) {

						ofRotateY(90);
						for (int x = len * -0.5; x < len * 0.5; x += size) {

							for (int y = len * -0.5; y < len * 0.5; y += size) {

								auto location = glm::vec3(x, y, len * 0.5);
								float angle = PI * 0.5 * i;
								auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));
								auto noise_location = glm::vec4(location, 0) * rotation;

								auto noise_value = ofNoise(base_x + noise_location.x * 0.0035, base_y + noise_location.y * 0.0035, noise_location.z * 0.0035, ofGetFrameNum() * 0.025);
								if (noise_value > 0.5) {

									ofFill();
									ofSetColor(239);
									ofDrawRectangle(location, size - 1, size - 1);

									ofNoFill();
									ofSetColor(39);
									ofDrawRectangle(location, size, size);
								}
							}
						}
					}
					else {

						ofRotateX(i == 4 ? 90 : 180);
						for (int x = len * -0.5; x < len * 0.5; x += size) {

							for (int y = len * -0.5; y < len * 0.5; y += size) {

								auto location = glm::vec3(x, y, len * 0.5);
								float angle = i == 4 ? PI * 0.5 : PI * 0.5 * 3;
								auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));
								auto noise_location = glm::vec4(location, 0) * rotation;

								auto noise_value = ofNoise(base_x + noise_location.x * 0.0035, base_y + noise_location.y * 0.0035, noise_location.z * 0.0035, ofGetFrameNum() * 0.025);
								if (noise_value > 0.5) {

									ofFill();
									ofSetColor(239);
									ofDrawRectangle(location, size - 1, size - 1);

									ofNoFill();
									ofSetColor(39);
									ofDrawRectangle(location, size, size);
								}
							}
						}

					}
				}
			}

			ofPopMatrix();
		}
	}

	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);

ofSetLineWidth(1.5);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

auto size = 30;

for (int base_x = -600; base_x <= 600; base_x += 600) {

for (int base_y = -600; base_y <= 600; base_y += 600) {

ofPushMatrix();

ofTranslate(base_x, base_y);

ofRotateX(ofGetFrameNum() * 0.43);

ofRotateY(ofGetFrameNum() * 0.65);

for (int len = 150; len <= 300; len += 150) {

for (int i = 0; i < 6; i += 1) {

if (i < 4) {

ofRotateY(90);

for (int x = len * -0.5; x < len * 0.5; x += size) {

for (int y = len * -0.5; y < len * 0.5; y += size) {

auto location = glm::vec3(x, y, len * 0.5);

float angle = PI * 0.5 * i;

auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));

auto noise_location = glm::vec4(location, 0) * rotation;

auto noise_value = ofNoise(base_x + noise_location.x * 0.0035, base_y + noise_location.y * 0.0035, noise_location.z * 0.0035, ofGetFrameNum() * 0.025);

if (noise_value > 0.5) {

ofFill();

ofSetColor(239);

ofDrawRectangle(location, size - 1, size - 1);

ofNoFill();

ofSetColor(39);

ofDrawRectangle(location, size, size);

}

else {

ofRotateX(i == 4 ? 90 : 180);

for (int x = len * -0.5; x < len * 0.5; x += size) {

for (int y = len * -0.5; y < len * 0.5; y += size) {

auto location = glm::vec3(x, y, len * 0.5);

float angle = i == 4 ? PI * 0.5 : PI * 0.5 * 3;

auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));

auto noise_location = glm::vec4(location, 0) * rotation;

auto noise_value = ofNoise(base_x + noise_location.x * 0.0035, base_y + noise_location.y * 0.0035, noise_location.z * 0.0035, ofGetFrameNum() * 0.025);

if (noise_value > 0.5) {

ofFill();

ofSetColor(239);

ofDrawRectangle(location, size - 1, size - 1);

ofNoFill();

ofSetColor(39);

ofDrawRectangle(location, size, size);

}

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201121

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2020年11月20日

Increase and decrease. Draw by openFrameworks

[ Video ]

[ About ]
満ち欠け。

Increase and decrease.

[ 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) {};

	vector<glm::vec2> location_list;
	vector<float> deg_list;
	vector<int> param_list;

	vector<ofColor> color_list, base_color_list;
};

#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) {};

vector<glm::vec2> location_list;

vector<float> deg_list;

vector<int> param_list;

vector<ofColor> color_list, base_color_list;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofSetCircleResolution(30);

	ofColor color;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	for (auto hex : hex_list) {

		color.setHex(hex);
		this->base_color_list.push_back(color);
	}

	float span = 120;
	for (float x = span * 0.5; x < ofGetWidth(); x += span) {

		for (float y = span * 0.5; y < ofGetHeight(); y += span) {

			this->location_list.push_back(glm::vec2(x, y));
			this->deg_list.push_back(ofRandom(360));
			this->param_list.push_back((int)ofRandom(90) * 4);
			this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]);
		}
	}

}


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

}

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

	int radius = 38;
	for(int i = 0; i < this->location_list.size(); i++) {

		this->param_list[i] = (this->param_list[i] + 4) % 360;

		if (this->param_list[i] == 0) {
			
			this->deg_list[i] = ofRandom(360); 
			this->color_list[i] = this->base_color_list[(int)ofRandom(this->base_color_list.size())];
		}

		vector<glm::vec2> vertices;
		if (this->param_list[i] > 0 && this->param_list[i] < 180) {

			for (int deg = 0; deg < this->param_list[i]; deg += 1) {

				vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}
			
			for (int deg = 360 - this->param_list[i]; deg < 360; deg += 1) {

				vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}
		}

		if (this->param_list[i] >= 180 && this->param_list[i] < 360) {

			auto tmp_param = this->param_list[i] - 180;
			for (int deg = tmp_param; deg < 180; deg += 1) {

				vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}

			for (int deg = 180; deg < 360 - tmp_param ; deg += 1) {

				vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));
			}
		}

		ofPushMatrix();
		ofTranslate(this->location_list[i]);
		ofRotate(this->deg_list[i]);

		ofFill();
		ofSetColor(this->color_list[i]);
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(39);
		ofDrawCircle(glm::vec2(), 43);
		
		ofPopMatrix();
	}
}

//--------------------------------------------------------------
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);

ofSetLineWidth(2);

ofSetCircleResolution(30);

ofColor color;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

float span = 120;

for (float x = span * 0.5; x < ofGetWidth(); x += span) {

for (float y = span * 0.5; y < ofGetHeight(); y += span) {

this->location_list.push_back(glm::vec2(x, y));

this->deg_list.push_back(ofRandom(360));

this->param_list.push_back((int)ofRandom(90) * 4);

this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int radius = 38;

for(int i = 0; i < this->location_list.size(); i++) {

this->param_list[i] = (this->param_list[i] + 4) % 360;

if (this->param_list[i] == 0) {

this->deg_list[i] = ofRandom(360);

this->color_list[i] = this->base_color_list[(int)ofRandom(this->base_color_list.size())];

}

vector<glm::vec2> vertices;

if (this->param_list[i] > 0 && this->param_list[i] < 180) {

for (int deg = 0; deg < this->param_list[i]; deg += 1) {

vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

for (int deg = 360 - this->param_list[i]; deg < 360; deg += 1) {

vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

if (this->param_list[i] >= 180 && this->param_list[i] < 360) {

auto tmp_param = this->param_list[i] - 180;

for (int deg = tmp_param; deg < 180; deg += 1) {

vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

for (int deg = 180; deg < 360 - tmp_param ; deg += 1) {

vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)));

}

ofPushMatrix();

ofTranslate(this->location_list[i]);

ofRotate(this->deg_list[i]);

ofFill();

ofSetColor(this->color_list[i]);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofDrawCircle(glm::vec2(), 43);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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