プログラミング de 落描き – ページ 269 – 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10月9日

Observe the shape.

[ Video ]

[ About ]
形状を眺める。

[ 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 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) {};

	ofEasyCam cam;
	float noise_param;
};

#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) {};

ofEasyCam cam;

float noise_param;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
}

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

	auto param = ofGetFrameNum() % 50;
	if (param > 12 && param < 38) {

		if (param < 25) {
			
			this->noise_param += ofMap(param, 12, 25, 0, 0.15);
		}
		else if (param > 25) {

			this->noise_param += ofMap(param, 25, 38, 0.15, 0);
		}
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 2.88);

	int size = 10;
	for (int x = -100; x <= 100; x += size) {

		for (int y = -200; y <= 200; y += size) {

			for (int z = -100; z <= 100; z += size) {

				auto noise_value = ofNoise(x * 0.0025, y * 0.002 + this->noise_param, z * 0.005);
				if (noise_value >= 0.4 && noise_value <= 0.5) {

					ofSetColor(0);
					ofFill();
					ofDrawBox(glm::vec3(x, y, z), size * 0.99);

					ofSetColor(239);
					ofNoFill();
					ofDrawBox(glm::vec3(x, y, z), size * 0.99);
				}
			}
		}
	}

	ofSetColor(0);
	ofDrawBox(300 + size, 400 + size, 300 + size);

	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();

}

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

void ofApp::update() {

auto param = ofGetFrameNum() % 50;

if (param > 12 && param < 38) {

if (param < 25) {

this->noise_param += ofMap(param, 12, 25, 0, 0.15);

}

else if (param > 25) {

this->noise_param += ofMap(param, 25, 38, 0.15, 0);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 2.88);

int size = 10;

for (int x = -100; x <= 100; x += size) {

for (int y = -200; y <= 200; y += size) {

for (int z = -100; z <= 100; z += size) {

auto noise_value = ofNoise(x * 0.0025, y * 0.002 + this->noise_param, z * 0.005);

if (noise_value >= 0.4 && noise_value <= 0.5) {

ofSetColor(0);

ofFill();

ofDrawBox(glm::vec3(x, y, z), size * 0.99);

ofSetColor(239);

ofNoFill();

ofDrawBox(glm::vec3(x, y, z), size * 0.99);

}

ofSetColor(0);

ofDrawBox(300 + size, 400 + size, 300 + size);

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231009

2023年10月8日

5 Colors.

[ Video ]

[ About ]
5色ライン。

[ Source ]

#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) {};

	ofMesh mesh;
};

#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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(0);
}

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

	this->mesh.clear();

	float span = 1;
	ofColor color;
	for (float x_start = 18; x_start < 720; x_start += 144)
	{
		for (float x = x_start; x < x_start + 108; x += span) {

			for (float y = 60; y < 660; y += span) {

				float noise_value = ofMap(ofNoise(x * 0.015, y * 0.003 + ofGetFrameNum() * 0.02, ofGetFrameNum() * 0.01), 0, 1, 0, 10);
				if ((int)noise_value % 2 == 0) {

					continue;
				}

				this->mesh.addVertex(glm::vec3(x, y, 0));
				this->mesh.addVertex(glm::vec3(x + span, y, 0));
				this->mesh.addVertex(glm::vec3(x + span, y + span, 0));
				this->mesh.addVertex(glm::vec3(x, y + span, 0));

				this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 4); this->mesh.addIndex(this->mesh.getNumVertices() - 3);
				this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3);

				color.setHsb(ofMap(x_start, 18, 720, 0, 255), 180, 255);
				for (int i = 0; i < 4; i++) {

					this->mesh.addColor(color);
				}
			}
		}
	}
}

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

	this->mesh.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

}

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

void ofApp::update() {

this->mesh.clear();

float span = 1;

ofColor color;

for (float x_start = 18; x_start < 720; x_start += 144)

{

for (float x = x_start; x < x_start + 108; x += span) {

for (float y = 60; y < 660; y += span) {

float noise_value = ofMap(ofNoise(x * 0.015, y * 0.003 + ofGetFrameNum() * 0.02, ofGetFrameNum() * 0.01), 0, 1, 0, 10);

if ((int)noise_value % 2 == 0) {

continue;

}

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

this->mesh.addVertex(glm::vec3(x + span, y, 0));

this->mesh.addVertex(glm::vec3(x + span, y + span, 0));

this->mesh.addVertex(glm::vec3(x, y + span, 0));

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 4); this->mesh.addIndex(this->mesh.getNumVertices() - 3);

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3);

color.setHsb(ofMap(x_start, 18, 720, 0, 255), 180, 255);

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

this->mesh.addColor(color);

}

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

void ofApp::draw() {

this->mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231008

2023年10月7日

Wrap around the sphere.

[ Video ]

[ About ]
球体を包む。

[ 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 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 mesh;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetColor(0);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(140, 7);

	for (int x = -160; x <= 160; x += 320) {

		for (int y = -160; y <= 160; y += 320) {

			int start_index = this->mesh.getNumVertices();
			for (int i = 0; i < ico_sphere.getMeshPtr()->getNumVertices(); i++) {

				this->mesh.addVertex(ico_sphere.getMeshPtr()->getVertex(i) + glm::vec3(x, y, 0));
				this->mesh.addColor(ofColor(0));
			}

			for (int i = 0; i < ico_sphere.getMeshPtr()->getNumIndices(); i++) {

				this->mesh.addIndex(start_index + ico_sphere.getMeshPtr()->getIndex(i));
			}
		}
	}
}

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

	ofSeedRandom(39);

	this->mesh.clearColors();
	auto noise_param = 0.00065;

	ofColor color;
	for (int i = 0; i < this->mesh.getNumVertices(); i++) {

		auto noise_value = ofMap(ofNoise(
			this->mesh.getVertex(i).x * noise_param,
			this->mesh.getVertex(i).y * noise_param,
			ofGetFrameNum() * 0.005), 0, 1, 0, 20);

		color.setHsb(ofMap(noise_value > 10 ? noise_value - 10 : noise_value, 0, 10, 0, 255), 150, 255);
		int int_noise_value = (int)noise_value;
		noise_value = noise_value - int_noise_value;
		auto alpha = abs(noise_value - 0.5) < 0.35 ? 0 : ofMap(abs(noise_value - 0.5), 0.35, 0.5, 0, 255);
		
		color = ofColor(color, alpha);
		this->mesh.addColor(color);
	}
}

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

	this->cam.begin();

	for (int x = -160; x <= 160; x += 320) {

		for (int y = -160; y <= 160; y += 320) {

			ofDrawSphere(glm::vec3(x, y, 0), 139);
		}
	}

	this->mesh.drawFaces();

	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);

ofSetColor(0);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(140, 7);

for (int x = -160; x <= 160; x += 320) {

for (int y = -160; y <= 160; y += 320) {

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

for (int i = 0; i < ico_sphere.getMeshPtr()->getNumVertices(); i++) {

this->mesh.addVertex(ico_sphere.getMeshPtr()->getVertex(i) + glm::vec3(x, y, 0));

this->mesh.addColor(ofColor(0));

}

for (int i = 0; i < ico_sphere.getMeshPtr()->getNumIndices(); i++) {

this->mesh.addIndex(start_index + ico_sphere.getMeshPtr()->getIndex(i));

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clearColors();

auto noise_param = 0.00065;

ofColor color;

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

auto noise_value = ofMap(ofNoise(

this->mesh.getVertex(i).x * noise_param,

this->mesh.getVertex(i).y * noise_param,

ofGetFrameNum() * 0.005), 0, 1, 0, 20);

color.setHsb(ofMap(noise_value > 10 ? noise_value - 10 : noise_value, 0, 10, 0, 255), 150, 255);

int int_noise_value = (int)noise_value;

noise_value = noise_value - int_noise_value;

auto alpha = abs(noise_value - 0.5) < 0.35 ? 0 : ofMap(abs(noise_value - 0.5), 0.35, 0.5, 0, 255);

color = ofColor(color, alpha);

this->mesh.addColor(color);

}

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

void ofApp::draw() {

this->cam.begin();

for (int x = -160; x <= 160; x += 320) {

for (int y = -160; y <= 160; y += 320) {

ofDrawSphere(glm::vec3(x, y, 0), 139);

}

this->mesh.drawFaces();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231007

2025年12月
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