プログラミング de 落描き – ページ 292 – クリエイティブ・コーディングによる生成物とソース

2021年12月5日

Twisting rings. Draw by openFrameworks

[ Video ]

[ About ]
FF14が忙しい。

Busy with ff14.

[ 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(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

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

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

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

	float noise_seed = ofRandom(1000);
	auto color_flag = true;
	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 * 0.005, ofGetFrameNum() * 0.0015), 0, 1, -360 * 3, 360 * 3);
		int next_u = ofMap(ofNoise(noise_seed, next_z.z * 0.005, ofGetFrameNum() * 0.0015), 0, 1, -360 * 3, 360 * 3);
		for (int u = u_start; u < u_start + 360; u += u_span) {

			if (flag) {

				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(0);
				ofColor line_color = ofColor(255);

				color_flag = !color_flag;

				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(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

int v_span = 1;

int u_span = 30;

int R = 330;

int r = 60;

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

float noise_seed = ofRandom(1000);

auto color_flag = true;

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 * 0.005, ofGetFrameNum() * 0.0015), 0, 1, -360 * 3, 360 * 3);

int next_u = ofMap(ofNoise(noise_seed, next_z.z * 0.005, ofGetFrameNum() * 0.0015), 0, 1, -360 * 3, 360 * 3);

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

if (flag) {

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(0);

ofColor line_color = ofColor(255);

color_flag = !color_flag;

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/Insta20211205

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年12月4日

Random walk on HEX. Draw by openFrameworks

[ Video ]

[ About ]
ランダムウォークが通った軌跡の六角形を回転させる。

Rotate the hexagon of the trajectory that the random walk went through.

[ 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) {};

	void setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, glm::vec3 deg, ofColor face_color, ofColor frame_color);

	vector<glm::vec3> location_list;
	vector<int> life_list;
	vector<float> noise_param_list;

	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 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) {};

void setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, glm::vec3 deg, ofColor face_color, ofColor frame_color);

vector<glm::vec3> location_list;

vector<int> life_list;

vector<float> noise_param_list;

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	ofFbo fbo;
	ofPixels pixels;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofClear(0);
	
	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-Extrabold.ttf", 250, true, true, true);
	string word = "HEX";
	font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 0.5);

	fbo.end();
	fbo.readToPixels(pixels);

	auto radius = 9;
	auto x_span = radius * sqrt(3);
	auto flg = true;
	for (auto y = 0; y < ofGetWidth(); y += radius * 1.5) {

		for (int x = 0; x < ofGetHeight(); x += x_span) {

			glm::vec3 location;
			if (pixels.getColor(x, y) != ofColor(0, 0)) {

				if (flg) {

					location = glm::vec3(x, y, 0);
				}
				else {

					location = glm::vec3(x + (x_span / 2), y, 0);
				}

				this->location_list.push_back(location - glm::vec3(ofGetWidth() * 0.5, ofGetHeight() * 0.5, 0));
				this->life_list.push_back(0);
				this->noise_param_list.push_back(ofRandom(1000));
			}
		}

		flg = !flg;
	}


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

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

	ofSeedRandom(39);

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

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

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

			this->noise_param_list[i] += ofMap(this->life_list[i], 0, 100, 0.05, 0.1);
		}
	}

	for (int i = 0; i < 12; i++) {

		auto noise_location = glm::vec3(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -360, 360), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -300, 300), 0);
		for (int k = 0; k < this->location_list.size(); k++) {

			if (glm::distance(noise_location, this->location_list[k]) < 20) {

				this->life_list[k] = this->life_list[k] < 50 ? this->life_list[k] + 4 : 50;
			}
		}
	}

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

		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		auto noise_deg = glm::vec3(
			ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, noise_seed.x + this->noise_param_list[i])), 0, 1, -360, 360),
			ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, noise_seed.y + this->noise_param_list[i])), 0, 1, -360, 360),
			ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, noise_seed.z + this->noise_param_list[i])), 0, 1, -360, 360));

		auto height = 4;
		ofColor location_color;
		location_color.setHsb((int)ofMap(ofNoise(glm::vec4(this->location_list[i], this->noise_param_list[i])), 0, 1, 0, 512) % 255, 130, 255);
		if (this->life_list[i] > 10) {

			this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height, noise_deg, location_color, ofColor(0));
		}
		else if (this->life_list[i] > 0) {

			location_color.setHsb(location_color.getHue(), ofMap(this->life_list[i], 0, 10, 0, 130), location_color.getBrightness());
			this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height, noise_deg * ofMap(this->life_list[i], 0, 10, 0, 1), location_color, ofColor(0));
		}
		else {

			this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height, glm::vec3(), ofColor(255), ofColor(0));
		}
	}
}

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

	this->cam.begin();
	ofRotateX(180);

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

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, glm::vec3 deg, ofColor face_color, ofColor frame_color) {

	auto rotation_x = glm::rotate(glm::mat4(), deg.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
	auto rotation_y = glm::rotate(glm::mat4(), deg.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
	auto rotation_z = glm::rotate(glm::mat4(), deg.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

	for (int deg = 90; deg < 450; deg += 60) {

		auto face_radius = radius - 0.5;
		auto face_index = face_target.getNumVertices();

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3(0, 0, 0));
		vertices.push_back(glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), 0));
		vertices.push_back(glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), 0));
		vertices.push_back(glm::vec3(0, 0, height));
		vertices.push_back(glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), height));
		vertices.push_back(glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), height));

		for (auto& vertex : vertices) {

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

		face_target.addVertices(vertices);

		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);
		face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);
		face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 4);
		face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

		auto frame_index = frame_target.getNumVertices();

		vertices.clear();
		vertices.push_back(glm::vec3(0, 0, 0));
		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
		vertices.push_back(glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), 0));
		vertices.push_back(glm::vec3(0, 0, height));
		vertices.push_back(glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), height));
		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height));

		for (auto& vertex : vertices) {

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

		frame_target.addVertices(vertices);

		frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);
		frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
		frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);
		frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 4);

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

			face_target.addColor(face_color);
			frame_target.addColor(frame_color);
		}
	}
}

//--------------------------------------------------------------
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(255);

ofSetLineWidth(2);

ofEnableDepthTest();

ofFbo fbo;

ofPixels pixels;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

ofClear(0);

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-Extrabold.ttf", 250, true, true, true);

string word = "HEX";

font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 0.5);

fbo.end();

fbo.readToPixels(pixels);

auto radius = 9;

auto x_span = radius * sqrt(3);

auto flg = true;

for (auto y = 0; y < ofGetWidth(); y += radius * 1.5) {

for (int x = 0; x < ofGetHeight(); x += x_span) {

glm::vec3 location;

if (pixels.getColor(x, y) != ofColor(0, 0)) {

if (flg) {

location = glm::vec3(x, y, 0);

}

else {

location = glm::vec3(x + (x_span / 2), y, 0);

}

this->location_list.push_back(location - glm::vec3(ofGetWidth() * 0.5, ofGetHeight() * 0.5, 0));

this->life_list.push_back(0);

this->noise_param_list.push_back(ofRandom(1000));

}

flg = !flg;

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

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

this->life_list[i] = this->life_list[i] > 0 ? this->life_list[i] - 1 : 0;

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

this->noise_param_list[i] += ofMap(this->life_list[i], 0, 100, 0.05, 0.1);

}

for (int i = 0; i < 12; i++) {

auto noise_location = glm::vec3(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -360, 360), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -300, 300), 0);

for (int k = 0; k < this->location_list.size(); k++) {

if (glm::distance(noise_location, this->location_list[k]) < 20) {

this->life_list[k] = this->life_list[k] < 50 ? this->life_list[k] + 4 : 50;

}

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

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

auto noise_deg = glm::vec3(

ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, noise_seed.x + this->noise_param_list[i])), 0, 1, -360, 360),

ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, noise_seed.y + this->noise_param_list[i])), 0, 1, -360, 360),

ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, noise_seed.z + this->noise_param_list[i])), 0, 1, -360, 360));

auto height = 4;

ofColor location_color;

location_color.setHsb((int)ofMap(ofNoise(glm::vec4(this->location_list[i], this->noise_param_list[i])), 0, 1, 0, 512) % 255, 130, 255);

if (this->life_list[i] > 10) {

this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height, noise_deg, location_color, ofColor(0));

}

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

location_color.setHsb(location_color.getHue(), ofMap(this->life_list[i], 0, 10, 0, 130), location_color.getBrightness());

this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height, noise_deg * ofMap(this->life_list[i], 0, 10, 0, 1), location_color, ofColor(0));

}

else {

this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height, glm::vec3(), ofColor(255), ofColor(0));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

this->face.draw();

this->frame.draw();

this->cam.end();

}

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

void ofApp::setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, glm::vec3 deg, ofColor face_color, ofColor frame_color) {

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

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

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

for (int deg = 90; deg < 450; deg += 60) {

auto face_radius = radius - 0.5;

auto face_index = face_target.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(0, 0, 0));

vertices.push_back(glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(0, 0, height));

vertices.push_back(glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), height));

vertices.push_back(glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), height));

for (auto& vertex : vertices) {

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

}

face_target.addVertices(vertices);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 4);

face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

auto frame_index = frame_target.getNumVertices();

vertices.clear();

vertices.push_back(glm::vec3(0, 0, 0));

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(0, 0, height));

vertices.push_back(glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), height));

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height));

for (auto& vertex : vertices) {

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

}

frame_target.addVertices(vertices);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);

frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 4);

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

face_target.addColor(face_color);

frame_target.addColor(frame_color);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211204

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2021年12月3日2021年12月3日

Cubic pyramid. Draw by openFrameworks

[ Video ]

[ About ]
本日はFF14の大型アップデート日です。

Today is the big update day for FF14.

[ 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) {};

	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);
	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth);

	glm::vec2 make_point(int len, float param);

	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) {};

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size);

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth);

glm::vec2 make_point(int len, float param);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

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

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

	auto len = 600;
	auto depth = len / 25;
	while (true) {

		auto param_start = ofMap(ofNoise(len * 0.002, ofGetFrameNum() * 0.0015), 0, 1, 0, 200);
		for (auto param = param_start; param < param_start + 50; param += 2) {

			this->setBoxToMesh(this->face, this->frame, glm::vec3(this->make_point(len, param), len / 2 + depth), len / 25);
		}

		len -= len / 10;
		if (len < 150) { break; }
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.666666666666);
	ofRotateZ(ofGetFrameNum() * 0.333333333333);

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

		ofRotateY(90);

		ofSetColor(255);
		this->face.draw();

		ofSetColor(0);
		this->frame.drawWireframe();
	}

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

	this->setBoxToMesh(face_target, frame_target, location, size, size, size);
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth) {

	int face_index = face_target.getNumVertices();
	int frame_index = frame_target.getNumVertices();

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);
	face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);
	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

	face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 1);
	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

	face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);
	face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 1);

	face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);
	face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 2);

	face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 4);
	face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 3);

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

	frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);
	frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);
	frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);
	frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 0);

	frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
	frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 6);
	frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);
	frame_target.addIndex(frame_index + 7); frame_target.addIndex(frame_index + 4);

	frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 4);
	frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);
	frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 6);
	frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 7);
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, float param) {

	glm::vec2 base, next;

	auto param_i =  (int)param % 100;
	auto param_p = param - (int)param;

	if (param_i < 25) {

		base = glm::vec2(ofMap(param_i, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param_i < 50) {

		base = glm::vec2(len * 0.5, ofMap(param_i, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param_i < 75) {

		base = glm::vec2(ofMap(param_i, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		base = glm::vec2(-len * 0.5, ofMap(param_i, 75, 100, len * 0.5, -len * 0.5));
	}

	param_i = (param_i + 1) % 100;
	if (param_i < 25) {

		next = glm::vec2(ofMap(param_i, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param_i < 50) {

		next = glm::vec2(len * 0.5, ofMap(param_i, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param_i < 75) {

		next = glm::vec2(ofMap(param_i, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		next = glm::vec2(-len * 0.5, ofMap(param_i, 75, 100, len * 0.5, -len * 0.5));
	}

	return base + (next - base) * param_p;
}

//--------------------------------------------------------------
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(255);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

auto len = 600;

auto depth = len / 25;

while (true) {

auto param_start = ofMap(ofNoise(len * 0.002, ofGetFrameNum() * 0.0015), 0, 1, 0, 200);

for (auto param = param_start; param < param_start + 50; param += 2) {

this->setBoxToMesh(this->face, this->frame, glm::vec3(this->make_point(len, param), len / 2 + depth), len / 25);

}

len -= len / 10;

if (len < 150) { break; }

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.666666666666);

ofRotateZ(ofGetFrameNum() * 0.333333333333);

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

ofRotateY(90);

ofSetColor(255);

this->face.draw();

ofSetColor(0);

this->frame.drawWireframe();

}

this->cam.end();

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size) {

this->setBoxToMesh(face_target, frame_target, location, size, size, size);

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth) {

int face_index = face_target.getNumVertices();

int frame_index = frame_target.getNumVertices();

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 4);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 3);

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);

frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 0);

frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 6);

frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);

frame_target.addIndex(frame_index + 7); frame_target.addIndex(frame_index + 4);

frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 4);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 6);

frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 7);

}

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

glm::vec2 ofApp::make_point(int len, float param) {

glm::vec2 base, next;

auto param_i = (int)param % 100;

auto param_p = param - (int)param;

if (param_i < 25) {

base = glm::vec2(ofMap(param_i, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param_i < 50) {

base = glm::vec2(len * 0.5, ofMap(param_i, 25, 50, -len * 0.5, len * 0.5));

}

else if (param_i < 75) {

base = glm::vec2(ofMap(param_i, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

base = glm::vec2(-len * 0.5, ofMap(param_i, 75, 100, len * 0.5, -len * 0.5));

}

param_i = (param_i + 1) % 100;

if (param_i < 25) {

next = glm::vec2(ofMap(param_i, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param_i < 50) {

next = glm::vec2(len * 0.5, ofMap(param_i, 25, 50, -len * 0.5, len * 0.5));

}

else if (param_i < 75) {

next = glm::vec2(ofMap(param_i, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

next = glm::vec2(-len * 0.5, ofMap(param_i, 75, 100, len * 0.5, -len * 0.5));

}

return base + (next - base) * param_p;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211203

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2024年4月
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