openFrameworks – ページ 195 – プログラミング de 落描き

2024年4月17日

Zebra.

[ Video ]

[ About ]
ゼブラ。

[ 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::vec3 make_point(float R, float r, float u, float v, float scale = 1.0);

	ofEasyCam cam;
	ofMesh face;
};

#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::vec3 make_point(float R, float r, float u, float v, float scale = 1.0);

ofEasyCam cam;

ofMesh face;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(0);
}

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

	this->face.clear();

	float phi_deg_step = 0.25;
	float theta_deg_step = 0.25;

	float R = 230;
	float r = R * 0.3;

	float threshold_1 = 0.5 - 0.02;
	float threshold_2 = 0.5 + 0.02;

	for (float threshold_base = 0; threshold_base <= 1.0; threshold_base += 0.1)
	{
		float threshold_1 = threshold_base - 0.01;
		float threshold_2 = threshold_base + 0.01;

		for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

			for (float theta_deg = 0; theta_deg < 360; theta_deg += theta_deg_step) {

				auto noise_location = this->make_point(R, r, theta_deg, phi_deg) * 0.003;
				auto noise_value = ofNoise(noise_location.x, noise_location.y, ofGetFrameNum() * 0.0025, noise_location.z);
				if (noise_value <= threshold_1 || noise_value >= threshold_2) { continue; }

				auto index = this->face.getNumVertices();
				vector<glm::vec3> vertices;

				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));

				for (auto& vertex : vertices) {
					
					vertex.z = 0;
				}

				this->face.addVertices(vertices);

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

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

	this->cam.begin();

	this->face.draw();

	/*
	int start = 1;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/

	this->cam.end();
}

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

	// 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;

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

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

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(0);

}

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

void ofApp::update() {

this->face.clear();

float phi_deg_step = 0.25;

float theta_deg_step = 0.25;

float R = 230;

float r = R * 0.3;

float threshold_1 = 0.5 - 0.02;

float threshold_2 = 0.5 + 0.02;

for (float threshold_base = 0; threshold_base <= 1.0; threshold_base += 0.1)

{

float threshold_1 = threshold_base - 0.01;

float threshold_2 = threshold_base + 0.01;

for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

for (float theta_deg = 0; theta_deg < 360; theta_deg += theta_deg_step) {

auto noise_location = this->make_point(R, r, theta_deg, phi_deg) * 0.003;

auto noise_value = ofNoise(noise_location.x, noise_location.y, ofGetFrameNum() * 0.0025, noise_location.z);

if (noise_value <= threshold_1 || noise_value >= threshold_2) { continue; }

auto index = this->face.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));

for (auto& vertex : vertices) {

vertex.z = 0;

}

this->face.addVertices(vertices);

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

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

}

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

void ofApp::draw() {

this->cam.begin();

this->face.draw();

int start = 1;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

this->cam.end();

}

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

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

// 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;

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

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

auto z = r * sin(u) * scale;

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20240417

2024年4月16日

Distortion.

[ Video ]

[ About ]
歪み。

[ 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;

	ofMesh base_mesh, draw_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;

ofMesh base_mesh, draw_mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofSetLineWidth(0.5);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	auto ico_sphere = ofIcoSpherePrimitive(250, 5);
	this->base_mesh = ico_sphere.getMesh();
}

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

	this->draw_mesh.clear();

	for (auto v : this->base_mesh.getVertices()) {

		for (int i = 0; i < 5; i++) {

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.x * 0.0005, ofGetFrameNum() * 0.0008)), 0, 1, -10, 10) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.y * 0.0005, ofGetFrameNum() * 0.0008)), 0, 1, -10, 10) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.z * 0.0005, ofGetFrameNum() * 0.0008)), 0, 1, -10, 10) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));
			auto radius = ofMap(ofNoise(glm::vec4(v * 0.008, ofGetFrameNum() * 0.0008)), 0, 1, 200, 360);

			v = glm::normalize(v) * radius;
			v = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;
		}

		this->draw_mesh.addVertex(glm::vec3(v.x, v.y, 0));
		this->draw_mesh.addColor(ofColor(32, 32, 128));
	}

	this->draw_mesh.addIndices(this->base_mesh.getIndices());
}

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

	this->cam.begin();

	this->draw_mesh.drawWireframe();

	/*
	int start = 1;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(0.5);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

auto ico_sphere = ofIcoSpherePrimitive(250, 5);

this->base_mesh = ico_sphere.getMesh();

}

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

void ofApp::update() {

this->draw_mesh.clear();

for (auto v : this->base_mesh.getVertices()) {

for (int i = 0; i < 5; i++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.x * 0.0005, ofGetFrameNum() * 0.0008)), 0, 1, -10, 10) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.y * 0.0005, ofGetFrameNum() * 0.0008)), 0, 1, -10, 10) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.z * 0.0005, ofGetFrameNum() * 0.0008)), 0, 1, -10, 10) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

auto radius = ofMap(ofNoise(glm::vec4(v * 0.008, ofGetFrameNum() * 0.0008)), 0, 1, 200, 360);

v = glm::normalize(v) * radius;

v = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;

}

this->draw_mesh.addVertex(glm::vec3(v.x, v.y, 0));

this->draw_mesh.addColor(ofColor(32, 32, 128));

}

this->draw_mesh.addIndices(this->base_mesh.getIndices());

}

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

void ofApp::draw() {

this->cam.begin();

this->draw_mesh.drawWireframe();

int start = 1;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20240416

2024年4月15日

Crumple.

[ Video ]

[ About ]
くしゃくしゃにする。

[ 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;

	ofMesh base_mesh, draw_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;

ofMesh base_mesh, draw_mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetLineWidth(0.5);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(250, 4);
	this->base_mesh = ico_sphere.getMesh();
}

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

	this->draw_mesh.clear();

	for (auto v : this->base_mesh.getVertices()) {

		for (int i = 0; i < 5; i++) {

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.x * 0.0005, ofGetFrameNum() * 0.005)), 0, 1, -120, 120) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.y * 0.0005, ofGetFrameNum() * 0.005)), 0, 1, -240, 240) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.z * 0.0005, ofGetFrameNum() * 0.005)), 0, 1, -120, 120) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));
			auto radius = ofMap(ofNoise(glm::vec4(v * 0.004, ofGetFrameNum() * 0.02)), 0, 1, 50, 300);

			v = glm::normalize(v) * radius;
			v = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;
		}

		v.z = 0;
		this->draw_mesh.addVertex(v);
		this->draw_mesh.addColor(ofColor(32));
	}

	this->draw_mesh.addIndices(this->base_mesh.getIndices());
}

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

	this->cam.begin();

	this->draw_mesh.drawWireframe();

	/*
	int start = 1;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(0.5);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(250, 4);

this->base_mesh = ico_sphere.getMesh();

}

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

void ofApp::update() {

this->draw_mesh.clear();

for (auto v : this->base_mesh.getVertices()) {

for (int i = 0; i < 5; i++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.x * 0.0005, ofGetFrameNum() * 0.005)), 0, 1, -120, 120) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.y * 0.0005, ofGetFrameNum() * 0.005)), 0, 1, -240, 240) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.z * 0.0005, ofGetFrameNum() * 0.005)), 0, 1, -120, 120) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

auto radius = ofMap(ofNoise(glm::vec4(v * 0.004, ofGetFrameNum() * 0.02)), 0, 1, 50, 300);

v = glm::normalize(v) * radius;

v = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;

}

v.z = 0;

this->draw_mesh.addVertex(v);

this->draw_mesh.addColor(ofColor(32));

}

this->draw_mesh.addIndices(this->base_mesh.getIndices());

}

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

void ofApp::draw() {

this->cam.begin();

this->draw_mesh.drawWireframe();

int start = 1;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20240415

2025年11月
月	火	水	木	金	土	日
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