sphere – ページ 30 – プログラミング de 落描き

2021年4月17日

Ring of number. Draw by openFrameworks

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[ About ]
Ring of number.

[ 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;
	vector<ofPath> path_list;
};

#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;

vector<ofPath> path_list;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofEnableDepthTest();

	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-Bold.ttf", 28, true, true, true);

	string word = "1234567890";
	for (int i = 0; i < (int)word.size(); i++) {

		this->path_list.push_back(font.getCharacterAsPoints(word[i], true, false));
	}
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	ofFill();
	ofSetColor(39);
	ofDrawSphere(glm::vec3(), 80);

	for (int k = 0; k < 10; k++) {

		auto radius = 100 + k * 20;
		for (int deg = 0; deg < 360; deg += 8) {

			auto location = glm::vec3(0, 0, -radius);
			auto rotation_y = glm::rotate(glm::mat4(), (float)(deg * DEG_TO_RAD), glm::vec3(0, 1, 0));
			location = glm::vec4(location, 0) * rotation_y;

			ofPushMatrix();
			ofTranslate(location);
			ofRotateY(180 - deg);
			ofRotateX(180);

			int noise_index = ofMap(ofNoise(radius * 0.005 + deg * 0.005 + ofGetFrameNum() * 0.02), 0, 1, 0, path_list.size());
			int tmp_size = (2 * radius * PI) / 36;
			auto outline = path_list[noise_index].getOutline();

			ofSetColor(39);
			ofFill();
			ofBeginShape();
			for (int line_index = 0; line_index < outline.size(); line_index++) {

				if (line_index != 0) { ofNextContour(true); }

				auto vertices = outline[line_index].getVertices();
				for (int i = 0; i < vertices.size(); i++) {

					ofVertex((vertices[i] / 28 * tmp_size) + glm::vec2(tmp_size * -0.5, tmp_size * 0.5));
				}
			}
			ofEndShape(true);

			ofSetColor(239);
			ofNoFill();
			ofBeginShape();
			for (int line_index = 0; line_index < outline.size(); line_index++) {

				if (line_index != 0) { ofNextContour(true); }

				auto vertices = outline[line_index].getVertices();
				for (int i = 0; i < vertices.size(); i++) {

					ofVertex((vertices[i] / 28 * tmp_size) + glm::vec2(tmp_size * -0.5, tmp_size * 0.5));
				}
			}
			ofEndShape(true);

			ofPopMatrix();
		}
	}

	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(2);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofEnableDepthTest();

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-Bold.ttf", 28, true, true, true);

string word = "1234567890";

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

this->path_list.push_back(font.getCharacterAsPoints(word[i], true, false));

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofFill();

ofSetColor(39);

ofDrawSphere(glm::vec3(), 80);

for (int k = 0; k < 10; k++) {

auto radius = 100 + k * 20;

for (int deg = 0; deg < 360; deg += 8) {

auto location = glm::vec3(0, 0, -radius);

auto rotation_y = glm::rotate(glm::mat4(), (float)(deg * DEG_TO_RAD), glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

ofPushMatrix();

ofTranslate(location);

ofRotateY(180 - deg);

ofRotateX(180);

int noise_index = ofMap(ofNoise(radius * 0.005 + deg * 0.005 + ofGetFrameNum() * 0.02), 0, 1, 0, path_list.size());

int tmp_size = (2 * radius * PI) / 36;

auto outline = path_list[noise_index].getOutline();

ofSetColor(39);

ofFill();

ofBeginShape();

for (int line_index = 0; line_index < outline.size(); line_index++) {

if (line_index != 0) { ofNextContour(true); }

auto vertices = outline[line_index].getVertices();

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

ofVertex((vertices[i] / 28 * tmp_size) + glm::vec2(tmp_size * -0.5, tmp_size * 0.5));

}

ofEndShape(true);

ofSetColor(239);

ofNoFill();

ofBeginShape();

for (int line_index = 0; line_index < outline.size(); line_index++) {

if (line_index != 0) { ofNextContour(true); }

auto vertices = outline[line_index].getVertices();

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

ofVertex((vertices[i] / 28 * tmp_size) + glm::vec2(tmp_size * -0.5, tmp_size * 0.5));

}

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210417

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2021年4月10日2021年4月10日

Sphere planter. Draw by openFrameworks

[ Video ]

[ About ]
Sphere planter.

[ 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<glm::vec3> location_list;
	vector<ofColor> base_color_list;

	vector<vector<glm::vec3>> log_list;
	vector<ofColor> color_list;
	vector<float> life_list;
};

#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<glm::vec3> location_list;

vector<ofColor> base_color_list;

vector<vector<glm::vec3>> log_list;

vector<ofColor> color_list;

vector<float> life_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofSetLineWidth(2);
	ofNoFill();
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

	int radius = 300;
	ofIcoSpherePrimitive ico_sphere;
	ico_sphere = ofIcoSpherePrimitive(radius, 7);

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

		glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		this->location_list.push_back(avg);
	}

	ofColor color;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	for (auto hex : hex_list) {

		color.setHex(hex);
		this->base_color_list.push_back(color);
	}
}

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

	while (this->log_list.size() < 3000) {

		int font_location_index = ofRandom(this->location_list.size());
		vector<glm::vec3> log;
		log.push_back(this->location_list[font_location_index]);
		this->log_list.push_back(log);
		this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]);
		this->life_list.push_back(ofRandom(60, 120));
	}

	for (int i = this->log_list.size() - 1; i >= 0; i--) {

		this->life_list[i] -= 1;
		if (this->life_list[i] < 0) {

			this->log_list.erase(this->log_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);

			continue;
		}

		int radius = 5;
		auto deg = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.003, ofGetFrameNum() * 0.006)), 0, 1, -360, 360);
		auto theta = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.003, (ofGetFrameNum() + 10000) * 0.006)), 0, 1, -360, 360);
		this->log_list[i].push_back(this->log_list[i].back() + glm::vec3(radius * cos(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD), radius * cos(theta * DEG_TO_RAD)));
		while (this->log_list[i].size() > 100) {

			this->log_list[i].erase(this->log_list[i].begin());
		}
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.25);

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

		ofSetColor(this->color_list[i]);

		if (this->life_list[i] > 30) {

			ofSetLineWidth(1.5);
		}
		else {

			ofSetLineWidth(ofMap(this->life_list[i], 0, 30, 0, 1.5));
		}

		ofBeginShape();
		ofVertices(this->log_list[i]);
		ofEndShape();
	}

	ofSetColor(39);
	ofDrawSphere(200);

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

ofNoFill();

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

int radius = 300;

ofIcoSpherePrimitive ico_sphere;

ico_sphere = ofIcoSpherePrimitive(radius, 7);

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

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

this->location_list.push_back(avg);

}

ofColor color;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

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

void ofApp::update() {

while (this->log_list.size() < 3000) {

int font_location_index = ofRandom(this->location_list.size());

vector<glm::vec3> log;

log.push_back(this->location_list[font_location_index]);

this->log_list.push_back(log);

this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]);

this->life_list.push_back(ofRandom(60, 120));

}

for (int i = this->log_list.size() - 1; i >= 0; i--) {

this->life_list[i] -= 1;

if (this->life_list[i] < 0) {

this->log_list.erase(this->log_list.begin() + i);

this->color_list.erase(this->color_list.begin() + i);

this->life_list.erase(this->life_list.begin() + i);

continue;

}

int radius = 5;

auto deg = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.003, ofGetFrameNum() * 0.006)), 0, 1, -360, 360);

auto theta = ofMap(ofNoise(glm::vec4(this->log_list[i].back() * 0.003, (ofGetFrameNum() + 10000) * 0.006)), 0, 1, -360, 360);

this->log_list[i].push_back(this->log_list[i].back() + glm::vec3(radius * cos(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD) * sin(theta * DEG_TO_RAD), radius * cos(theta * DEG_TO_RAD)));

while (this->log_list[i].size() > 100) {

this->log_list[i].erase(this->log_list[i].begin());

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.25);

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

ofSetColor(this->color_list[i]);

if (this->life_list[i] > 30) {

ofSetLineWidth(1.5);

}

else {

ofSetLineWidth(ofMap(this->life_list[i], 0, 30, 0, 1.5));

}

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

ofSetColor(39);

ofDrawSphere(200);

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210410

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2021年4月4日

Thorn 20210404. Draw by openFrameworks

[ Video ]

[ About ]
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;
	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

float base_radius;

ofIcoSpherePrimitive ico_sphere;

ofMesh face, frame;

float noise_param;

};

#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);

	this->noise_param = ofRandom(1000);
}

//--------------------------------------------------------------
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), this->noise_param);
		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 + this->noise_param), 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 + this->noise_param), 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 + this->noise_param), 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);
			}
		}
	}

	if (ofGetFrameNum() % 60 < 45) {

		this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 45, 0.03, 0);
	}
}

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

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

	ofSetColor(239);
	this->frame.drawWireframe();

	ofSetColor(39);
	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);

this->noise_param = ofRandom(1000);

}

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

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), this->noise_param);

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 + this->noise_param), 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 + this->noise_param), 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 + this->noise_param), 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);

}

if (ofGetFrameNum() % 60 < 45) {

this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 45, 0.03, 0);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofSetColor(239);

this->frame.drawWireframe();

ofSetColor(39);

this->face.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210404

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