openFrameworks – ページ 256 – プログラミング de 落描き

2023年10月12日

Connective on sphere.

[ Video ]

[ About ]
接続ポイント on 球体。

[ 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(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
	ofSetLineWidth(1.5);
}

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


}

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

	this->cam.begin();
	ofRotateX(90);
	
	auto radius = 250;

	ofBeginShape();
	for (float theta_deg = 3; theta_deg < 180; theta_deg += 0.5) {

		auto phi_deg = ofMap(ofNoise(theta_deg * 0.01, ofGetFrameNum() * 0.0025), 0, 1, -720, 720);

		auto location = glm::vec3(
			radius * sin(theta_deg * DEG_TO_RAD) * cos(phi_deg * DEG_TO_RAD),
			radius * sin(theta_deg * DEG_TO_RAD) * sin(phi_deg * DEG_TO_RAD),
			radius * cos(theta_deg * DEG_TO_RAD));

		ofFill();
		ofDrawSphere(location, 3);
		ofVertex(location);
	}
	ofNoFill();
	ofEndShape();

	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);

ofSetColor(39);

ofEnableDepthTest();

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

auto radius = 250;

ofBeginShape();

for (float theta_deg = 3; theta_deg < 180; theta_deg += 0.5) {

auto phi_deg = ofMap(ofNoise(theta_deg * 0.01, ofGetFrameNum() * 0.0025), 0, 1, -720, 720);

auto location = glm::vec3(

radius * sin(theta_deg * DEG_TO_RAD) * cos(phi_deg * DEG_TO_RAD),

radius * sin(theta_deg * DEG_TO_RAD) * sin(phi_deg * DEG_TO_RAD),

radius * cos(theta_deg * DEG_TO_RAD));

ofFill();

ofDrawSphere(location, 3);

ofVertex(location);

}

ofNoFill();

ofEndShape();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231012

2023年10月11日

Collapsing spheres.

[ Video ]

[ About ]
崩壊球体。

[ 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;

	vector<ofMeshFace> triangle_list;
	ofMesh mesh, frame;
};

#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;

vector<ofMeshFace> triangle_list;

ofMesh mesh, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(300, 2);
	this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->mesh.clear();
	this->frame.clear();

	int radius = 300;
	for (int i = 0; i < this->triangle_list.size(); i++) {

		glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;
		auto noise_value = ofNoise(avg.x * 0.001, avg.y * 0.001, avg.z * 0.001 + ofGetFrameNum() * 0.03);
		glm::highp_dmat4 rotation_x, rotation_y, rotation_z;

		if (noise_value < 0.5) {

			auto angle = 0.f;
			if (noise_value < 0.4) {

				angle = ofMap(noise_value, 0, 0.4, PI * 10, PI);
			}
			else {

				angle = ofMap(noise_value, 0.4, 0.5, PI, 0);
			}

			rotation_x = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0));
			rotation_y = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));
			rotation_z = glm::rotate(glm::mat4(), angle, glm::vec3(0, 0, 1));
		}
		else {

			rotation_x = glm::rotate(glm::mat4(), 0.f, glm::vec3(1, 0, 0));
			rotation_y = glm::rotate(glm::mat4(), 0.f, glm::vec3(0, 1, 0));
			rotation_z = glm::rotate(glm::mat4(), 0.f, glm::vec3(0, 0, 1));
		}

		vector<glm::vec3> vertices;

		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius + 2) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius + 2) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius + 2) - avg);

		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius - 2) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius - 2) - avg);
		vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius - 2) - avg);

		for (auto& vertex : vertices) {

			vertex = glm::vec4(vertex, 0) *  rotation_z * rotation_y * rotation_x;
			if (noise_value < 0.5) {

				vertex += glm::normalize(avg) * ofMap(noise_value, 0, 0.5, radius * 3, radius);
			}
			else {

				vertex += avg;
			}
		}

		this->mesh.addVertices(vertices);
		this->frame.addVertices(vertices);

		this->mesh.addColor(ofColor(239));
		this->mesh.addColor(ofColor(239));
		this->mesh.addColor(ofColor(239));

		this->mesh.addColor(ofColor(39));
		this->mesh.addColor(ofColor(39));
		this->mesh.addColor(ofColor(39));

		this->frame.addColor(ofColor(39));
		this->frame.addColor(ofColor(39));
		this->frame.addColor(ofColor(39));

		this->frame.addColor(ofColor(239));
		this->frame.addColor(ofColor(239));
		this->frame.addColor(ofColor(239));

		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 4, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 6);

		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 5);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 4);

		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 4);

		this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);
		this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 5);

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

		this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 5);
		this->frame.addIndex(this->frame.getNumVertices() - 5); this->frame.addIndex(this->frame.getNumVertices() - 6);
		this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 6);

		this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);
		this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 5);
		this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 6);
	}
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.37);
	ofRotateY(ofGetFrameNum() * 0.72);

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

	ofSetColor(39);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
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(2);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(300, 2);

this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

this->frame.clear();

int radius = 300;

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

glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;

auto noise_value = ofNoise(avg.x * 0.001, avg.y * 0.001, avg.z * 0.001 + ofGetFrameNum() * 0.03);

glm::highp_dmat4 rotation_x, rotation_y, rotation_z;

if (noise_value < 0.5) {

auto angle = 0.f;

if (noise_value < 0.4) {

angle = ofMap(noise_value, 0, 0.4, PI * 10, PI);

}

else {

angle = ofMap(noise_value, 0.4, 0.5, PI, 0);

}

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

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

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

}

else {

rotation_x = glm::rotate(glm::mat4(), 0.f, glm::vec3(1, 0, 0));

rotation_y = glm::rotate(glm::mat4(), 0.f, glm::vec3(0, 1, 0));

rotation_z = glm::rotate(glm::mat4(), 0.f, glm::vec3(0, 0, 1));

}

vector<glm::vec3> vertices;

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius + 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius + 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius + 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius - 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius - 2) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius - 2) - avg);

for (auto& vertex : vertices) {

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

if (noise_value < 0.5) {

vertex += glm::normalize(avg) * ofMap(noise_value, 0, 0.5, radius * 3, radius);

}

else {

vertex += avg;

}

this->mesh.addVertices(vertices);

this->frame.addVertices(vertices);

this->mesh.addColor(ofColor(239));

this->mesh.addColor(ofColor(39));

this->frame.addColor(ofColor(39));

this->frame.addColor(ofColor(239));

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

this->mesh.addTriangle(this->mesh.getNumVertices() - 4, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 5);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 4);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 4);

this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2);

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 3);

this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 5); this->frame.addIndex(this->frame.getNumVertices() - 6);

this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 6);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 6);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.37);

ofRotateY(ofGetFrameNum() * 0.72);

ofSetColor(239);

this->mesh.drawFaces();

ofSetColor(39);

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231011

2023年10月10日

Box rotating.

[ Video ]

[ About ]
回転箱。

[ 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) {};

	ofEasyCam cam;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

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

	this->cam.begin();
	ofRotateX(90);
	ofRotateZ(ofGetFrameNum() * 0.72);

	auto radius = 300;

	for (int z = -240; z <= 240; z += 60) {

		for (auto deg = 0; deg < 360; deg += 6) {

			auto location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z);

			ofPushMatrix();
			ofTranslate(location);
			ofRotateZ(deg);

			auto rotate_deg = ofMap(ofNoise(glm::vec4(location.x * 0.0025, location.y * 0.0025, location.z, ofGetFrameNum() * 0.02)), 0, 1, -360, 360);
			ofRotateY(rotate_deg);

			ofFill();
			ofSetColor(0);
			ofDrawBox(30);

			ofNoFill();
			ofSetColor(255);
			ofDrawBox(30);

			ofPopMatrix();
		}
	}

	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(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

ofRotateZ(ofGetFrameNum() * 0.72);

auto radius = 300;

for (int z = -240; z <= 240; z += 60) {

for (auto deg = 0; deg < 360; deg += 6) {

auto location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z);

ofPushMatrix();

ofTranslate(location);

ofRotateZ(deg);

auto rotate_deg = ofMap(ofNoise(glm::vec4(location.x * 0.0025, location.y * 0.0025, location.z, ofGetFrameNum() * 0.02)), 0, 1, -360, 360);

ofRotateY(rotate_deg);

ofFill();

ofSetColor(0);

ofDrawBox(30);

ofNoFill();

ofSetColor(255);

ofDrawBox(30);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231010

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