sphere – ページ 33 – プログラミング de 落描き

2021年1月23日

3 layers Sphere. Draw by openFrameworks

[ Video ]

[ About ]
3 layers Sphere.

[ 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 face, line;
};

#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 face, line;

};

#include "ofApp.h"

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

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

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

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

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

	ofSeedRandom(39);

	this->face.clear();
	this->line.clear();

	float phi_deg_step = 10;
	float theta_deg_step = 3;
	float threshold = 0.55;

	ofColor color;
	vector<ofColor> base_color_list;
	vector<int> hex_list = { 0xFF9800, 0x03A9F4, 0xf44336 };
	for (auto hex : hex_list) {

		color.setHex(hex);
		base_color_list.push_back(color);
	}
	
	int color_index = 0;
	for (float radius = 100; radius <= 200; radius += 50) {

		auto rotate_noise = glm::vec2(ofRandom(1000), ofRandom(1000));
		for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

			for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

				auto noise_value = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
				if (noise_value < threshold) { continue; }

				auto noise_1 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
				auto noise_2 = ofNoise(radius * cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
				auto noise_3 = ofNoise(radius * cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
				auto noise_4 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

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

				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

				for (int i = 0; i < vertices.size(); i++) {

					auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(rotate_noise.x, ofGetFrameNum() * 0.001), 0, 1, PI * -2, PI * 2), glm::vec3(0, 1, 0));
					auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(rotate_noise.y, ofGetFrameNum() * 0.001), 0, 1, PI * -2, PI * 2), glm::vec3(1, 0, 0));

					vertices[i] = glm::vec4(vertices[i], 0) * rotation_y * rotation_x;
				}

				this->face.addVertices(vertices);

				for (int i = 0; i < vertices.size(); i++) {

					this->face.addColor(ofColor(base_color_list[color_index]));
				}

				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);

				if (noise_1 < threshold) {

					this->line.addVertex(vertices[0]);
					this->line.addVertex(vertices[1]);

					this->line.addIndex(this->line.getNumVertices() - 1);
					this->line.addIndex(this->line.getNumVertices() - 2);
				}

				if (noise_2 < threshold) {

					this->line.addVertex(vertices[0]);
					this->line.addVertex(vertices[2]);

					this->line.addIndex(this->line.getNumVertices() - 1);
					this->line.addIndex(this->line.getNumVertices() - 2);
				}

				if (noise_3 < threshold) {

					this->line.addVertex(vertices[1]);
					this->line.addVertex(vertices[3]);

					this->line.addIndex(this->line.getNumVertices() - 1);
					this->line.addIndex(this->line.getNumVertices() - 2);
				}

				if (noise_4 < threshold) {

					this->line.addVertex(vertices[2]);
					this->line.addVertex(vertices[3]);

					this->line.addIndex(this->line.getNumVertices() - 1);
					this->line.addIndex(this->line.getNumVertices() - 2);
				}
			}
		}

		color_index++;
	}
}

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

	this->cam.begin();

	this->line.draw();
	this->face.draw();

	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);

ofSetColor(39);

ofSetLineWidth(1.5);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

float phi_deg_step = 10;

float theta_deg_step = 3;

float threshold = 0.55;

ofColor color;

vector<ofColor> base_color_list;

vector<int> hex_list = { 0xFF9800, 0x03A9F4, 0xf44336 };

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

int color_index = 0;

for (float radius = 100; radius <= 200; radius += 50) {

auto rotate_noise = glm::vec2(ofRandom(1000), ofRandom(1000));

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

for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

if (noise_value < threshold) { continue; }

auto noise_1 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

auto noise_2 = ofNoise(radius * cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

auto noise_3 = ofNoise(radius * cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

auto noise_4 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

for (int i = 0; i < vertices.size(); i++) {

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(rotate_noise.x, ofGetFrameNum() * 0.001), 0, 1, PI * -2, PI * 2), glm::vec3(0, 1, 0));

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(rotate_noise.y, ofGetFrameNum() * 0.001), 0, 1, PI * -2, PI * 2), glm::vec3(1, 0, 0));

vertices[i] = glm::vec4(vertices[i], 0) * rotation_y * rotation_x;

}

this->face.addVertices(vertices);

for (int i = 0; i < vertices.size(); i++) {

this->face.addColor(ofColor(base_color_list[color_index]));

}

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);

if (noise_1 < threshold) {

this->line.addVertex(vertices[0]);

this->line.addVertex(vertices[1]);

this->line.addIndex(this->line.getNumVertices() - 1);

this->line.addIndex(this->line.getNumVertices() - 2);

}

if (noise_2 < threshold) {

this->line.addVertex(vertices[0]);

this->line.addVertex(vertices[2]);

this->line.addIndex(this->line.getNumVertices() - 1);

this->line.addIndex(this->line.getNumVertices() - 2);

}

if (noise_3 < threshold) {

this->line.addVertex(vertices[1]);

this->line.addVertex(vertices[3]);

this->line.addIndex(this->line.getNumVertices() - 1);

this->line.addIndex(this->line.getNumVertices() - 2);

}

if (noise_4 < threshold) {

this->line.addVertex(vertices[2]);

this->line.addVertex(vertices[3]);

this->line.addIndex(this->line.getNumVertices() - 1);

this->line.addIndex(this->line.getNumVertices() - 2);

}

color_index++;

}

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

void ofApp::draw() {

this->cam.begin();

this->line.draw();

this->face.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/INsta20210123

2021年1月20日2021年1月20日

Sphere broken. Draw by openFrameworks

[ Video ]

[ About ]
Sphere broken.

[ 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 face, 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;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();

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

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

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

	float phi_deg_step = 10;
	float theta_deg_step = 3;
	float radius = 300;

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

		for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

			auto noise_value = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
			if (noise_value < 0.5) { continue; }

			auto noise_1 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
			auto noise_2 = ofNoise(radius * cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
			auto noise_3 = ofNoise(radius * cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);
			auto noise_4 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

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

			vertices.push_back(glm::vec3(
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

			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);

			if (noise_1 < 0.5) {

				this->frame.addVertex(vertices[0]);
				this->frame.addVertex(vertices[1]);

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

			if (noise_2 < 0.5) {

				this->frame.addVertex(vertices[0]);
				this->frame.addVertex(vertices[2]);

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

			if (noise_3 < 0.5) {

				this->frame.addVertex(vertices[1]);
				this->frame.addVertex(vertices[3]);

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

			if (noise_4 < 0.5) {

				this->frame.addVertex(vertices[2]);
				this->frame.addVertex(vertices[3]);

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

			}
		}
	}
}

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

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

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

	ofSetColor(239);
	this->face.draw();

	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(3);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

float phi_deg_step = 10;

float theta_deg_step = 3;

float radius = 300;

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

for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos(theta_deg * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

if (noise_value < 0.5) { continue; }

auto noise_1 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

auto noise_4 = ofNoise(radius * cos(phi_deg * DEG_TO_RAD) * 0.02, radius * sin(phi_deg * DEG_TO_RAD) * 0.02, radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.02, ofGetFrameNum() * 0.025);

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

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);

if (noise_1 < 0.5) {

this->frame.addVertex(vertices[0]);

this->frame.addVertex(vertices[1]);

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

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

}

if (noise_2 < 0.5) {

this->frame.addVertex(vertices[0]);

this->frame.addVertex(vertices[2]);

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

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

}

if (noise_3 < 0.5) {

this->frame.addVertex(vertices[1]);

this->frame.addVertex(vertices[3]);

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

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

}

if (noise_4 < 0.5) {

this->frame.addVertex(vertices[2]);

this->frame.addVertex(vertices[3]);

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.37);

ofRotateY(ofGetFrameNum() * 0.72);

ofSetColor(39);

this->frame.draw();

ofSetColor(239);

this->face.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210120

2021年1月3日

Thorn. Draw by openFrameworks

[ Video ]

[ About ]
棘。

Thorn.

[ 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;
	float base_radius;
	ofIcoSpherePrimitive ico_sphere;
	ofMesh face, 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;

float base_radius;

ofIcoSpherePrimitive ico_sphere;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

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

	this->base_radius = 65;
	this->ico_sphere = ofIcoSpherePrimitive(this->base_radius, 2);
	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

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

	int radius_start = this->base_radius;
	int radius_max = this->base_radius * 2;
	for (auto& triangle : this->ico_sphere.getMesh().getUniqueFaces()) {

		auto noise_seed_x = ofRandom(1000);
		auto noise_seed_y = ofRandom(1000);
		auto noise_seed_z = ofRandom(1000);

		auto noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005);
		int radius_end = noise_value > 0.7 ? ofMap(noise_value, 0.7, 1, radius_start, radius_max) : radius_start;
		this->frame.addVertex(glm::vec3());

		for (int radius = radius_start; radius <= radius_end; radius += 1) {

			auto mesh_index = this->face.getNumVertices();
			auto frame_index = this->frame.getNumVertices();

			auto param = ofMap(radius, radius_start, radius_max, 0, PI * 0.15);

			auto angle_x = ofMap(ofNoise(noise_seed_x, radius * 0.0075 + ofGetFrameNum() * 0.005), 0, 1, -param, param);
			auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
			auto angle_y = ofMap(ofNoise(noise_seed_y, radius * 0.0075 + ofGetFrameNum() * 0.005), 0, 1, -param, param);
			auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));
			auto angle_z = ofMap(ofNoise(noise_seed_z, radius * 0.0075 + ofGetFrameNum() * 0.005), 0, 1, -param, param);
			auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

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

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec4(location + glm::normalize(triangle.getVertex(0) - avg) * ofMap(radius, radius_start, radius_end, glm::length(triangle.getVertex(0) - avg), 0), 0) * rotation_z * rotation_y * rotation_x);
			vertices.push_back(glm::vec4(location + glm::normalize(triangle.getVertex(1) - avg) * ofMap(radius, radius_start, radius_end, glm::length(triangle.getVertex(1) - avg), 0), 0) * rotation_z * rotation_y * rotation_x);
			vertices.push_back(glm::vec4(location + glm::normalize(triangle.getVertex(2) - avg) * ofMap(radius, radius_start, radius_end, glm::length(triangle.getVertex(2) - avg), 0), 0) * rotation_z * rotation_y * rotation_x);

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

			if (radius == radius_start || radius == radius_end) {

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

			this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 1);
			this->frame.addIndex(frame_index + 1); this->frame.addIndex(frame_index + 2);
			this->frame.addIndex(frame_index + 2); this->frame.addIndex(frame_index + 0);

			if (radius > radius_start) {

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

				this->face.addIndex(mesh_index + 1); this->face.addIndex(mesh_index + 2); this->face.addIndex(mesh_index - 1);
				this->face.addIndex(mesh_index + 1); this->face.addIndex(mesh_index - 1); this->face.addIndex(mesh_index - 2);

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


				this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index - 3);
				this->frame.addIndex(frame_index + 1); this->frame.addIndex(frame_index - 2);
				this->frame.addIndex(frame_index + 2); this->frame.addIndex(frame_index - 1);
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

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

	ofSetColor(239);
	this->face.draw();

	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(2);

ofEnableDepthTest();

this->base_radius = 65;

this->ico_sphere = ofIcoSpherePrimitive(this->base_radius, 2);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

int radius_start = this->base_radius;

int radius_max = this->base_radius * 2;

for (auto& triangle : this->ico_sphere.getMesh().getUniqueFaces()) {

auto noise_seed_x = ofRandom(1000);

auto noise_seed_y = ofRandom(1000);

auto noise_seed_z = ofRandom(1000);

auto noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005);

int radius_end = noise_value > 0.7 ? ofMap(noise_value, 0.7, 1, radius_start, radius_max) : radius_start;

this->frame.addVertex(glm::vec3());

for (int radius = radius_start; radius <= radius_end; radius += 1) {

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

auto frame_index = this->frame.getNumVertices();

auto param = ofMap(radius, radius_start, radius_max, 0, PI * 0.15);

auto angle_x = ofMap(ofNoise(noise_seed_x, radius * 0.0075 + ofGetFrameNum() * 0.005), 0, 1, -param, param);

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

auto angle_y = ofMap(ofNoise(noise_seed_y, radius * 0.0075 + ofGetFrameNum() * 0.005), 0, 1, -param, param);

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

auto angle_z = ofMap(ofNoise(noise_seed_z, radius * 0.0075 + ofGetFrameNum() * 0.005), 0, 1, -param, param);

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

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

glm::vec3 location = glm::normalize(avg) * radius;

vector<glm::vec3> vertices;

vertices.push_back(glm::vec4(location + glm::normalize(triangle.getVertex(0) - avg) * ofMap(radius, radius_start, radius_end, glm::length(triangle.getVertex(0) - avg), 0), 0) * rotation_z * rotation_y * rotation_x);

vertices.push_back(glm::vec4(location + glm::normalize(triangle.getVertex(1) - avg) * ofMap(radius, radius_start, radius_end, glm::length(triangle.getVertex(1) - avg), 0), 0) * rotation_z * rotation_y * rotation_x);

vertices.push_back(glm::vec4(location + glm::normalize(triangle.getVertex(2) - avg) * ofMap(radius, radius_start, radius_end, glm::length(triangle.getVertex(2) - avg), 0), 0) * rotation_z * rotation_y * rotation_x);

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

if (radius == radius_start || radius == radius_end) {

this->face.addIndex(mesh_index + 0); this->face.addIndex(mesh_index + 1); this->face.addIndex(mesh_index + 2);

}

this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 1);

this->frame.addIndex(frame_index + 1); this->frame.addIndex(frame_index + 2);

this->frame.addIndex(frame_index + 2); this->frame.addIndex(frame_index + 0);

if (radius > radius_start) {

this->face.addIndex(mesh_index + 0); this->face.addIndex(mesh_index + 1); this->face.addIndex(mesh_index - 2);

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

this->face.addIndex(mesh_index + 1); this->face.addIndex(mesh_index + 2); this->face.addIndex(mesh_index - 1);

this->face.addIndex(mesh_index + 1); this->face.addIndex(mesh_index - 1); this->face.addIndex(mesh_index - 2);

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

this->face.addIndex(mesh_index + 2); this->face.addIndex(mesh_index - 3); this->face.addIndex(mesh_index - 1);

this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index - 3);

this->frame.addIndex(frame_index + 1); this->frame.addIndex(frame_index - 2);

this->frame.addIndex(frame_index + 2); this->frame.addIndex(frame_index - 1);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofSetColor(39);

this->frame.drawWireframe();

ofSetColor(239);

this->face.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210103

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