プログラミング de 落描き – ページ 228 – クリエイティブ・コーディングによる生成物とソース

2023年11月10日

Rainbow tornade.

[ Video ]

[ About ]
虹色トルネード。

[ 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);

	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) {};

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

ofEasyCam cam;

};

#include "ofApp.h"

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

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

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

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateY(90);

	int v_span = 1;
	int u_span = 30;
	int R = 330;
	int r = 60;	
	ofColor color;

	ofMesh face, line;
	line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	float noise_seed = ofRandom(1000);
	for (int v = 0; v <= 360 * 6; v += v_span) {

		bool flag = true;
		auto z = glm::vec3(0, 0, ofMap(v, 0, 360 * 6, -360 * 3, 360 * 3));
		auto next_z = glm::vec3(0, 0, ofMap(v + v_span, 0, 360 * 6, -360 * 3, 360 * 3));
		int u_start = ofMap(ofNoise(noise_seed, z.z * 0.003, ofGetFrameNum() * 0.0035), 0, 1, -360 * 3, 360 * 3);
		int next_u = ofMap(ofNoise(noise_seed, next_z.z * 0.003, ofGetFrameNum() * 0.0035), 0, 1, -360 * 3, 360 * 3);

		int count = 0;
		for (int u = u_start; u < u_start + 360; u += u_span) {

			color.setHsb(ofMap(count, 0, 12, 0, 255), 120, 255);
			count++;

			if (true) {

				face.addVertex(this->make_point(R, r, u, v) + z);
				face.addVertex(this->make_point(R, r, u + u_span, v) + z);
				face.addVertex(this->make_point(R, r, next_u + u_span, v + v_span) + next_z);
				face.addVertex(this->make_point(R, r, next_u, v + v_span) + next_z);

				line.addVertex(this->make_point(R, r, u, v) + z);
				line.addVertex(this->make_point(R, r, u + u_span, v) + z);
				line.addVertex(this->make_point(R, r, next_u + u_span, v + v_span) + next_z);
				line.addVertex(this->make_point(R, r, next_u, v + v_span) + next_z);

				ofColor face_color = ofColor(color);
				ofColor line_color = ofColor(239);

				face.addColor(face_color);
				face.addColor(face_color);
				face.addColor(face_color);
				face.addColor(face_color);

				line.addColor(line_color);
				line.addColor(line_color);
				line.addColor(line_color);
				line.addColor(line_color);

				face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);
				face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

				line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);
				line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);
			}

			next_u += u_span;
			flag = !flag;
		}
	}

	face.drawFaces();
	line.drawWireframe();

	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;

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

	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);

ofSetLineWidth(0.5);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(90);

int v_span = 1;

int u_span = 30;

int R = 330;

int r = 60;

ofColor color;

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

float noise_seed = ofRandom(1000);

for (int v = 0; v <= 360 * 6; v += v_span) {

bool flag = true;

auto z = glm::vec3(0, 0, ofMap(v, 0, 360 * 6, -360 * 3, 360 * 3));

auto next_z = glm::vec3(0, 0, ofMap(v + v_span, 0, 360 * 6, -360 * 3, 360 * 3));

int u_start = ofMap(ofNoise(noise_seed, z.z * 0.003, ofGetFrameNum() * 0.0035), 0, 1, -360 * 3, 360 * 3);

int next_u = ofMap(ofNoise(noise_seed, next_z.z * 0.003, ofGetFrameNum() * 0.0035), 0, 1, -360 * 3, 360 * 3);

int count = 0;

for (int u = u_start; u < u_start + 360; u += u_span) {

color.setHsb(ofMap(count, 0, 12, 0, 255), 120, 255);

count++;

if (true) {

face.addVertex(this->make_point(R, r, u, v) + z);

face.addVertex(this->make_point(R, r, u + u_span, v) + z);

face.addVertex(this->make_point(R, r, next_u + u_span, v + v_span) + next_z);

face.addVertex(this->make_point(R, r, next_u, v + v_span) + next_z);

line.addVertex(this->make_point(R, r, u, v) + z);

line.addVertex(this->make_point(R, r, u + u_span, v) + z);

line.addVertex(this->make_point(R, r, next_u + u_span, v + v_span) + next_z);

line.addVertex(this->make_point(R, r, next_u, v + v_span) + next_z);

ofColor face_color = ofColor(color);

ofColor line_color = ofColor(239);

face.addColor(face_color);

line.addColor(line_color);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4);

line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3);

}

next_u += u_span;

flag = !flag;

}

face.drawFaces();

line.drawWireframe();

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;

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

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

auto 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/Insta20231110

2023年11月9日

White version.

[ Video ]

[ About ]
ホワイト版。

[ 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);
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);

	auto ico_sphere = ofIcoSpherePrimitive(250, 7);
	this->base_mesh = ico_sphere.getMesh();
}

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

	this->draw_mesh.clear();

	ofColor color;

	for (int i = 0; i < 2; i++) {

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

			color.setHsb(ofMap(v.x, -250, 250, 64 + i * 64, 128 + i * 128), 255, 255);

			for (int k = 0; k < 4; k++) {

				auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00015, i * 1000 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
				auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00015, i * 1000 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
				auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00015, i * 1000 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

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

			this->draw_mesh.addVertex(v);
			this->draw_mesh.addColor(ofColor(color, 64));
		}
	}
}

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

	this->cam.begin();
	ofRotateZ(45);
	ofRotateY(ofGetFrameNum() * 1.44);

	this->draw_mesh.drawVertices();

	/*
	int start = 150;
	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);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);

auto ico_sphere = ofIcoSpherePrimitive(250, 7);

this->base_mesh = ico_sphere.getMesh();

}

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

void ofApp::update() {

this->draw_mesh.clear();

ofColor color;

for (int i = 0; i < 2; i++) {

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

color.setHsb(ofMap(v.x, -250, 250, 64 + i * 64, 128 + i * 128), 255, 255);

for (int k = 0; k < 4; k++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00015, i * 1000 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00015, i * 1000 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00015, i * 1000 + ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

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

}

this->draw_mesh.addVertex(v);

this->draw_mesh.addColor(ofColor(color, 64));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(45);

ofRotateY(ofGetFrameNum() * 1.44);

this->draw_mesh.drawVertices();

int start = 150;

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/Insta20231109

2023年11月8日

Vertices on sphere.

[ Video ]

[ About ]
球体の頂点。

[ 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(0);
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	auto ico_sphere = ofIcoSpherePrimitive(250, 7);
	this->base_mesh = ico_sphere.getMesh();
}

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

	this->draw_mesh.clear();

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

		color.setHsb(ofMap(v.x, -250, 250, 180, 255), 180, 255);

		for (int i = 0; i < 4; i++) {

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.0005, ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.0005, ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.0005, ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

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

		this->draw_mesh.addVertex(v);
		this->draw_mesh.addColor(ofColor(color, 64));
	}
}

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

	this->cam.begin();
	ofRotateZ(45);
	ofRotateY(ofGetFrameNum() * 1.44);

	this->draw_mesh.drawVertices();

	/*
	int start = 150;
	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(0);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

auto ico_sphere = ofIcoSpherePrimitive(250, 7);

this->base_mesh = ico_sphere.getMesh();

}

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

void ofApp::update() {

this->draw_mesh.clear();

ofColor color;

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

color.setHsb(ofMap(v.x, -250, 250, 180, 255), 180, 255);

for (int i = 0; i < 4; i++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.0005, ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.0005, ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.0005, ofGetFrameNum() * 0.01)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

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

}

this->draw_mesh.addVertex(v);

this->draw_mesh.addColor(ofColor(color, 64));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(45);

ofRotateY(ofGetFrameNum() * 1.44);

this->draw_mesh.drawVertices();

int start = 150;

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/Insta20231108

2025年9月
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